FVD Brombacher - Latest Development for 997.2/997.2S Street-Sport Muffler System
Registered User
Joined: Nov 2008
Posts: 326
From: USA
Rep Power: 42
I will try to do some videos from the outside. So far I am enjoying the sound and increased power. I have no other experience with other exhausts except for the stock one so I may be biased. Thanks.
Vic
Vic
Thanks for the report/comments and the video on this new FVD Street/Sport muffler. From listening to your video I think the system sound pretty good (from the interior viewpoint) but I think I do detect a little drone/resonance while at the lower RPM's while cruising/slight acceleration (probably around 2000-3000 RPM). I know it is hard to really tell from a video.
Is there any chance you can do another video from the outside, with a warm start, some throttle blips and revs to 3000/4000/5000/6000 RPM, and then some drive-aways under normal throttle and WOT, and then maybe a few drive-bys under normal throttle and WOT? That would be very informative and would provide much needed information for lots of us out there who are looking at this system but just need to listen to a better video than the one FVD provided in this thread. Thanks.
Is there any chance you can do another video from the outside, with a warm start, some throttle blips and revs to 3000/4000/5000/6000 RPM, and then some drive-aways under normal throttle and WOT, and then maybe a few drive-bys under normal throttle and WOT? That would be very informative and would provide much needed information for lots of us out there who are looking at this system but just need to listen to a better video than the one FVD provided in this thread. Thanks.
Registered User
Joined: Jun 2007
Posts: 66
From: Toronto, Canada
Rep Power: 21
I've had mine about a week and this is my experience, on my 2009 C4S, 6spd:
Shipping
I got mine shipped via UPS, direct from Germany. As has been my recent experience with UPS, they roughly handled the package and unfortunately the internal packing was IMO poorly done. With other exhausts I've ordered in the past, they've been packed internally with packing peanuts and bubblewrap, or sometimes a type of sprayfoam inside bags that exactly fills the box and fully protects the items shipped. FVD wrapped the exhaust in several layers of bubblewrap and then used loose cardboard to partially fill the space inside the outbox. End result, two large tears in the box and one exhaust flange was sticking partially out of the box with all the bubblewrap popped around it. After fully unwrapping it, there didn't appear to be any damage other than some scrapes on the end of the flange. There were no instructions or nuts/washers included.
Installation
Although I had no instructions and could find none on FVD's site, it seemed relatively straight forward and I've re and re'd my 997.1 exhaust a few times. The 997.2 exhaust is actually easier to remove than the 997.1 and I put the car on rhino ramps and worked from below as in the past. After a couple aborted attempts at using brute strength to install it, I came to the same conclusion as Gray911 and removed the exhaust springs, then pulled the pipes further apart and attached them to the header/cats, then attached the springs. Needless to say, attaching very tight springs with very little room to work with from underneath was an exercise in frustration. I finally got them on though. If anyone else is self installing this exhaust, my advice is - Remove the bumper! Now, the holes in the flanges are significantly larger than the ones on the stock mufflers so I noticed that the nuts were partially pulling into the flange holes when tightening. I ended up using the two muffler nuts with integrated washers per side, and luckily I found another two identical ones kicking around the house. I reused the exhaust gaskets as I'd never had a problem reusing my 997.1 gaskets. However I'm a little concerned I may have a slight leak here. More advice - use new gaskets. I couldn't definitively find the proper torque for the nuts onto the header/cat pressed in studs, but I used 17-19 ft-lbs as that seemed to be the most frequent torque used for those types of studs.
Construction
This appears to be a very well constructed exhaust with nice welds and close attention to detail. The design appears to have changed from the pictures Rhonda put up initially at the beginning of this thread.
Performance
Whether it's the reported increase combined with the drop in weight, placebo effect due to the sound or some combination of the two, I was surprised to feel a noticeable bump in power/torque.
Sound
This is what is key for me and unfortunately where I have mixed feelings. I'm curious if some of the mixed feelings is due to a possible small leak at the gaskets (which I plan to replace soon). I also wonder if liquid gasket should be used at the pipe connections between the springs to prevent any leaks there too.
It has a wonderful bark on startup that really sounds like the car means business. When cold, I find my car still has the characteristic DFI stumble for the first couple of minutes when driving off. With the windows up, the sound between 2-3,000 is boomy, on the verge of drone. When warm, the boomy sound remains in the ~2,200-3,500 range when on moderate, constant throttle and gets worse if heavy throttle is used in this range. For around town, I can shift into 4th, dropping the RPMs to around 2,000, eliminating the annoyance. But on the highway, cruising at a constant 120km/hr(75 mph), the only escape is to feather the throttle.
However, when accelerating, it sounds great. The strange thing is that the sound gets quieter above 5,000 changing into a turbo, rushing air type of sound.
Kicker - All of this changes with the windows down. With the windows down, it's pure sex, with no annoyances. My gf thinks it sounds like a sport bike (which she likes) and one friend (993/996TT owner) thinks it sounds ferrari-ish.
Any ideas if a small leak at the gasket or possibly not using liquid gasket sealer at the spring connection could be the cause of the 'boomy'ness?
I took a vid with my iphone but the microphone fails to capture any semblance of what the exhaust really sounds like. I'll try with a better camera when the weather improves here.
Shipping
I got mine shipped via UPS, direct from Germany. As has been my recent experience with UPS, they roughly handled the package and unfortunately the internal packing was IMO poorly done. With other exhausts I've ordered in the past, they've been packed internally with packing peanuts and bubblewrap, or sometimes a type of sprayfoam inside bags that exactly fills the box and fully protects the items shipped. FVD wrapped the exhaust in several layers of bubblewrap and then used loose cardboard to partially fill the space inside the outbox. End result, two large tears in the box and one exhaust flange was sticking partially out of the box with all the bubblewrap popped around it. After fully unwrapping it, there didn't appear to be any damage other than some scrapes on the end of the flange. There were no instructions or nuts/washers included.
Installation
Although I had no instructions and could find none on FVD's site, it seemed relatively straight forward and I've re and re'd my 997.1 exhaust a few times. The 997.2 exhaust is actually easier to remove than the 997.1 and I put the car on rhino ramps and worked from below as in the past. After a couple aborted attempts at using brute strength to install it, I came to the same conclusion as Gray911 and removed the exhaust springs, then pulled the pipes further apart and attached them to the header/cats, then attached the springs. Needless to say, attaching very tight springs with very little room to work with from underneath was an exercise in frustration. I finally got them on though. If anyone else is self installing this exhaust, my advice is - Remove the bumper! Now, the holes in the flanges are significantly larger than the ones on the stock mufflers so I noticed that the nuts were partially pulling into the flange holes when tightening. I ended up using the two muffler nuts with integrated washers per side, and luckily I found another two identical ones kicking around the house. I reused the exhaust gaskets as I'd never had a problem reusing my 997.1 gaskets. However I'm a little concerned I may have a slight leak here. More advice - use new gaskets. I couldn't definitively find the proper torque for the nuts onto the header/cat pressed in studs, but I used 17-19 ft-lbs as that seemed to be the most frequent torque used for those types of studs.
Construction
This appears to be a very well constructed exhaust with nice welds and close attention to detail. The design appears to have changed from the pictures Rhonda put up initially at the beginning of this thread.
Performance
Whether it's the reported increase combined with the drop in weight, placebo effect due to the sound or some combination of the two, I was surprised to feel a noticeable bump in power/torque.
Sound
This is what is key for me and unfortunately where I have mixed feelings. I'm curious if some of the mixed feelings is due to a possible small leak at the gaskets (which I plan to replace soon). I also wonder if liquid gasket should be used at the pipe connections between the springs to prevent any leaks there too.
It has a wonderful bark on startup that really sounds like the car means business. When cold, I find my car still has the characteristic DFI stumble for the first couple of minutes when driving off. With the windows up, the sound between 2-3,000 is boomy, on the verge of drone. When warm, the boomy sound remains in the ~2,200-3,500 range when on moderate, constant throttle and gets worse if heavy throttle is used in this range. For around town, I can shift into 4th, dropping the RPMs to around 2,000, eliminating the annoyance. But on the highway, cruising at a constant 120km/hr(75 mph), the only escape is to feather the throttle.
However, when accelerating, it sounds great. The strange thing is that the sound gets quieter above 5,000 changing into a turbo, rushing air type of sound.
Kicker - All of this changes with the windows down. With the windows down, it's pure sex, with no annoyances. My gf thinks it sounds like a sport bike (which she likes) and one friend (993/996TT owner) thinks it sounds ferrari-ish.
Any ideas if a small leak at the gasket or possibly not using liquid gasket sealer at the spring connection could be the cause of the 'boomy'ness?
I took a vid with my iphone but the microphone fails to capture any semblance of what the exhaust really sounds like. I'll try with a better camera when the weather improves here.
Registered User
Joined: Nov 2008
Posts: 326
From: USA
Rep Power: 42
I've had mine about a week and this is my experience, on my 2009 C4S, 6spd:
Shipping
I got mine shipped via UPS, direct from Germany. As has been my recent experience with UPS, they roughly handled the package and unfortunately the internal packing was IMO poorly done. With other exhausts I've ordered in the past, they've been packed internally with packing peanuts and bubblewrap, or sometimes a type of sprayfoam inside bags that exactly fills the box and fully protects the items shipped. FVD wrapped the exhaust in several layers of bubblewrap and then used loose cardboard to partially fill the space inside the outbox. End result, two large tears in the box and one exhaust flange was sticking partially out of the box with all the bubblewrap popped around it. After fully unwrapping it, there didn't appear to be any damage other than some scrapes on the end of the flange. There were no instructions or nuts/washers included.
Installation
Although I had no instructions and could find none on FVD's site, it seemed relatively straight forward and I've re and re'd my 997.1 exhaust a few times. The 997.2 exhaust is actually easier to remove than the 997.1 and I put the car on rhino ramps and worked from below as in the past. After a couple aborted attempts at using brute strength to install it, I came to the same conclusion as Gray911 and removed the exhaust springs, then pulled the pipes further apart and attached them to the header/cats, then attached the springs. Needless to say, attaching very tight springs with very little room to work with from underneath was an exercise in frustration. I finally got them on though. If anyone else is self installing this exhaust, my advice is - Remove the bumper! Now, the holes in the flanges are significantly larger than the ones on the stock mufflers so I noticed that the nuts were partially pulling into the flange holes when tightening. I ended up using the two muffler nuts with integrated washers per side, and luckily I found another two identical ones kicking around the house. I reused the exhaust gaskets as I'd never had a problem reusing my 997.1 gaskets. However I'm a little concerned I may have a slight leak here. More advice - use new gaskets. I couldn't definitively find the proper torque for the nuts onto the header/cat pressed in studs, but I used 17-19 ft-lbs as that seemed to be the most frequent torque used for those types of studs.
Construction
This appears to be a very well constructed exhaust with nice welds and close attention to detail. The design appears to have changed from the pictures Rhonda put up initially at the beginning of this thread.
Performance
Whether it's the reported increase combined with the drop in weight, placebo effect due to the sound or some combination of the two, I was surprised to feel a noticeable bump in power/torque.
Sound
This is what is key for me and unfortunately where I have mixed feelings. I'm curious if some of the mixed feelings is due to a possible small leak at the gaskets (which I plan to replace soon). I also wonder if liquid gasket should be used at the pipe connections between the springs to prevent any leaks there too.
It has a wonderful bark on startup that really sounds like the car means business. When cold, I find my car still has the characteristic DFI stumble for the first couple of minutes when driving off. With the windows up, the sound between 2-3,000 is boomy, on the verge of drone. When warm, the boomy sound remains in the ~2,200-3,500 range when on moderate, constant throttle and gets worse if heavy throttle is used in this range. For around town, I can shift into 4th, dropping the RPMs to around 2,000, eliminating the annoyance. But on the highway, cruising at a constant 120km/hr(75 mph), the only escape is to feather the throttle.
However, when accelerating, it sounds great. The strange thing is that the sound gets quieter above 5,000 changing into a turbo, rushing air type of sound.
Kicker - All of this changes with the windows down. With the windows down, it's pure sex, with no annoyances. My gf thinks it sounds like a sport bike (which she likes) and one friend (993/996TT owner) thinks it sounds ferrari-ish.
Any ideas if a small leak at the gasket or possibly not using liquid gasket sealer at the spring connection could be the cause of the 'boomy'ness?
I took a vid with my iphone but the microphone fails to capture any semblance of what the exhaust really sounds like. I'll try with a better camera when the weather improves here.
Shipping
I got mine shipped via UPS, direct from Germany. As has been my recent experience with UPS, they roughly handled the package and unfortunately the internal packing was IMO poorly done. With other exhausts I've ordered in the past, they've been packed internally with packing peanuts and bubblewrap, or sometimes a type of sprayfoam inside bags that exactly fills the box and fully protects the items shipped. FVD wrapped the exhaust in several layers of bubblewrap and then used loose cardboard to partially fill the space inside the outbox. End result, two large tears in the box and one exhaust flange was sticking partially out of the box with all the bubblewrap popped around it. After fully unwrapping it, there didn't appear to be any damage other than some scrapes on the end of the flange. There were no instructions or nuts/washers included.
Installation
Although I had no instructions and could find none on FVD's site, it seemed relatively straight forward and I've re and re'd my 997.1 exhaust a few times. The 997.2 exhaust is actually easier to remove than the 997.1 and I put the car on rhino ramps and worked from below as in the past. After a couple aborted attempts at using brute strength to install it, I came to the same conclusion as Gray911 and removed the exhaust springs, then pulled the pipes further apart and attached them to the header/cats, then attached the springs. Needless to say, attaching very tight springs with very little room to work with from underneath was an exercise in frustration. I finally got them on though. If anyone else is self installing this exhaust, my advice is - Remove the bumper! Now, the holes in the flanges are significantly larger than the ones on the stock mufflers so I noticed that the nuts were partially pulling into the flange holes when tightening. I ended up using the two muffler nuts with integrated washers per side, and luckily I found another two identical ones kicking around the house. I reused the exhaust gaskets as I'd never had a problem reusing my 997.1 gaskets. However I'm a little concerned I may have a slight leak here. More advice - use new gaskets. I couldn't definitively find the proper torque for the nuts onto the header/cat pressed in studs, but I used 17-19 ft-lbs as that seemed to be the most frequent torque used for those types of studs.
Construction
This appears to be a very well constructed exhaust with nice welds and close attention to detail. The design appears to have changed from the pictures Rhonda put up initially at the beginning of this thread.
Performance
Whether it's the reported increase combined with the drop in weight, placebo effect due to the sound or some combination of the two, I was surprised to feel a noticeable bump in power/torque.
Sound
This is what is key for me and unfortunately where I have mixed feelings. I'm curious if some of the mixed feelings is due to a possible small leak at the gaskets (which I plan to replace soon). I also wonder if liquid gasket should be used at the pipe connections between the springs to prevent any leaks there too.
It has a wonderful bark on startup that really sounds like the car means business. When cold, I find my car still has the characteristic DFI stumble for the first couple of minutes when driving off. With the windows up, the sound between 2-3,000 is boomy, on the verge of drone. When warm, the boomy sound remains in the ~2,200-3,500 range when on moderate, constant throttle and gets worse if heavy throttle is used in this range. For around town, I can shift into 4th, dropping the RPMs to around 2,000, eliminating the annoyance. But on the highway, cruising at a constant 120km/hr(75 mph), the only escape is to feather the throttle.
However, when accelerating, it sounds great. The strange thing is that the sound gets quieter above 5,000 changing into a turbo, rushing air type of sound.
Kicker - All of this changes with the windows down. With the windows down, it's pure sex, with no annoyances. My gf thinks it sounds like a sport bike (which she likes) and one friend (993/996TT owner) thinks it sounds ferrari-ish.
Any ideas if a small leak at the gasket or possibly not using liquid gasket sealer at the spring connection could be the cause of the 'boomy'ness?
I took a vid with my iphone but the microphone fails to capture any semblance of what the exhaust really sounds like. I'll try with a better camera when the weather improves here.
Your review is pretty accurate especially the sound review. I feel and hear the same on my system even though I used new gaskets. My box also was partially damaged but not as worse as yours. I would have rejected that box from UPS. This exhaust really sounds better with open windows, with windows up I feel like grabbing a set of ear plugs!
Vic
Registered User
Joined: Nov 2008
Posts: 326
From: USA
Rep Power: 42
I tried to take videos doing revs. This is the best I can do. Sound is better than the tubi which is canister like. This one is deeper. Still annoyed by occasional drone. Will attempt to do drive by but no street that is safe to do it in the city. The sound on the FVD videos are quite accurate.
http://www.youtube.com/watch?v=clG0HXakE-s
http://www.youtube.com/watch?v=clG0HXakE-s
For those looking for the price of this exhaust, go on www.fvd.us and they have it listed there. Looks like a pretty good deal to me.
Very nice system.
I have the PSE, but want to remove the primary muffler for better exhaust flow and HP gains.
Currently I do not want to look at sports headers/cats but have the opportunity in the future if I wish too.
Your thoughts....
If I was to use FVD then I could use the Primary muffler bypass system ?? and retain the PSE functionality, alternatively I could use the fabspeed primary system... A lot cheaper....
I was thinking of also using the fabspeed CAI - dual Y CF with conical air filters...
YOur thoughts....
Molar
PS I live in AUstralia.....
Registered User
Joined: Feb 2009
Posts: 188
From: phoenix,az
Rep Power: 25
Just looked at your youtube clip.
Very nice system.
I have the PSE, but want to remove the primary muffler for better exhaust flow and HP gains.
Currently I do not want to look at sports headers/cats but have the opportunity in the future if I wish too.
Your thoughts....
If I was to use FVD then I could use the Primary muffler bypass system ?? and retain the PSE functionality, alternatively I could use the fabspeed primary system... A lot cheaper....
I was thinking of also using the fabspeed CAI - dual Y CF with conical air filters...
YOur thoughts....
Molar
PS I live in AUstralia.....
Very nice system.
I have the PSE, but want to remove the primary muffler for better exhaust flow and HP gains.
Currently I do not want to look at sports headers/cats but have the opportunity in the future if I wish too.
Your thoughts....
If I was to use FVD then I could use the Primary muffler bypass system ?? and retain the PSE functionality, alternatively I could use the fabspeed primary system... A lot cheaper....
I was thinking of also using the fabspeed CAI - dual Y CF with conical air filters...
YOur thoughts....
Molar
PS I live in AUstralia.....
Your plan to replace the OEM Primary Muffler (center exhaust/resonator) with either the FVD Primary Muffler ByPass X-Pipe or the similar product from Fabspeed is a great plan to get better exhaust flow for the PSE side mufflers and the result will be enhanced HP/TQ, less weight, and enhanced sound compared to the already great sounding PSE system. But I am not sure if the the "plumbing" on the entrance/exit to the PSE side mufflers is the same as just the normal OEM side mufflers. If it is then no problem, but I would check with either Rhonda at FVD or the Fabspeed people to make sure. Good luck and make a video if you do decide to go that route - I would love to hear it.
911 Molar,
Your plan to replace the OEM Primary Muffler (center exhaust/resonator) with either the FVD Primary Muffler ByPass X-Pipe or the similar product from Fabspeed is a great plan to get better exhaust flow for the PSE side mufflers and the result will be enhanced HP/TQ, less weight, and enhanced sound compared to the already great sounding PSE system. But I am not sure if the the "plumbing" on the entrance/exit to the PSE side mufflers is the same as just the normal OEM side mufflers. If it is then no problem, but I would check with either Rhonda at FVD or the Fabspeed people to make sure. Good luck and make a video if you do decide to go that route - I would love to hear it.
Your plan to replace the OEM Primary Muffler (center exhaust/resonator) with either the FVD Primary Muffler ByPass X-Pipe or the similar product from Fabspeed is a great plan to get better exhaust flow for the PSE side mufflers and the result will be enhanced HP/TQ, less weight, and enhanced sound compared to the already great sounding PSE system. But I am not sure if the the "plumbing" on the entrance/exit to the PSE side mufflers is the same as just the normal OEM side mufflers. If it is then no problem, but I would check with either Rhonda at FVD or the Fabspeed people to make sure. Good luck and make a video if you do decide to go that route - I would love to hear it.
Not sure which way to go yet.
I will check with both companies regarding the plumbing with the PSE.
I will also have a discussion with Porsche Centre Brisbane regarding warranty.
I am sure they will be OK with the X pipe, not so sure with the intake.
Molar
Thread
Thread Starter
Forum
Replies
Last Post
vividracing
991
6
Jun 10, 2017 07:45 PM
9972, back, brombacher, exhaust, fvd, fvdbrombacher, money, muffler, mufflers, pdk, sport, streetsport, system, tubi, tuning
