996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

Another 996 exhaust thread!!!!!!!!!!!!

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Old Jul 10, 2013 | 12:38 PM
  #76  
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Originally Posted by johnspeed
But on the other hand that is a good show from a manufacturer,, may collect some info, and if did show improvements , it would be selling plus for more units..
Look who many ask for dyno comparisons on here..
Also look on some product tests from some vendors which may be not apples to apples in test procedures..
Then why do people dyno their cars after mods,, to see results of what the paid for..
I agree, but 10-15HP on our cars is well within the margin of error and can actually be zero improvement. So really no way to be sure if they truly increase HP or just margin of error.

I did back to back dynos on my car and each run was 10-15HP different. Way too many variables to quote that little of HP improvement, but marketing disagrees! :-)

So my point is that any vendor putting their exhaust up against another aftermarket exhaust may unfairly end up on the losing side due to margin of error.
 
Old Jul 10, 2013 | 12:55 PM
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i guess its better to sell based on sound,personal experience and forum opinions.

if you say your product X delivers and is superior to product Y and someone says OK i will buy it but i will return it if i doesnt outperform product Y and you say NO. seems like you just lost the confidence you had in your product 3 seconds ago.
 
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Old Jul 10, 2013 | 12:56 PM
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Originally Posted by prodigymb
i guess its better to sell based on sound,personal experience and forum opinions.

if you say your product X delivers and is superior to product Y and someone says OK i will buy it but i will return it if i doesnt outperform product Y and you say NO. seems like you just lost the confidence you had in your product 3 seconds ago.
Yeah if you make those claims, then sure, pony up! I haven't personally seen any aftermarket exhausts claim better than another aftermarket. Maybe they have and I just haven't seen it.
 
Old Jul 10, 2013 | 03:39 PM
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Dyno's are the best lie detector for snake oil claims,, can get a general idea of the product.
Also I believe if you have a solid 15 hp gain in a large area in the power curve,, not just peak, you will notice it because of using it going through each gear,,, like the area between gear recovery and red line.
 
Old Jul 10, 2013 | 10:51 PM
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Well I anteed up and pulled my panties from the crack of my bum and put the system on. Actually last night I had left 1/2 of it on waiting to talk to Todd. I did today and I decided to just do it.

Really I do not know where all the issues come from but nothing about my Exhaust is stock. Not headers, not turbo's, not nothing.

Really these problems were not out of the norm with the aftermarket world, we are not talking OEM made in thousands so lots of product refinement. When you add in so many different components this is what you get. I have seen it a thousand times and will a thousand more.

I will tip my hat to Todd... His product is not perfect but he was the only person that I talked to that said if I was un happy I could just return it. No other person making there sales pitch told me that besides him. Yes I had to do some fiddling but at the end of the day the product works well and looks perfectly acceptable. A person that is willing to stand behind what ones produces is worth much more to me then almost all other factors.

You see I am a perfectionist, I would have built the system out of Inconel and everything and every seem and bend and weld would have been perfection... But to what end, would it perform better, likely not. Actually I would hazard to guess Todds system would sound better and is quieter in cab due to the thicker wall.

__________________________________________________ __________

My review.

It does sound really really good, Very quiet at cruising speeds and RPM and absolutely ZERO drone at any RPM. I have not found one single RPM that this thing drones yet.

Now I say quiet but that is at cruise RPM's or constant RPM. If you get on the throttle the exhaust really does come alive with a very nice higher pitched sound. Way better then my Ti system and that was not a bad exhaust. The in cab noise is quieter just because the thicker walled stainless does not let so much sound escape from the piping itself. The sound comes out the back instead. From the exhaust tips comes a pretty aggressive noise, nice high exotic car sound. I think for out side the car it is louder then my Cross Ti and interior sound is better in all respects. The only down side is my Ti system was a fair bit lighter then this system. It was over 6g new though.

It's kind of the way I like it, windows open or on the street it speaks to you. Close them and it is so pleasant.

Thanks Todd
 

Last edited by Engine Guy; Jul 11, 2013 at 07:42 AM.
Old Jul 10, 2013 | 11:59 PM
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Originally Posted by Engine Guy
Well I anteed up and pulled my panties from the crack of my bum and put the system on. Actually last night I had left 1/2 of it on waiting to talk to Todd. I did today and I decided to just do it.

Really I do not know where all the issues come from considering noting about my Exhaust is stock. Not headers, not turbo's, not nothing.

Really these problems were not out of the norm with the aftermarket world, we are not talking OEM made in thousands of product refinement. So when you add in so many different components this is what you get. I have seen it a thousand times and will a thousand more.

I will tip my hat to Todd... His product is not perfect but he was the only person that I talked to that said if I was un happy I could just return it. No other person making there sales pitch told me that besides him. Yes I had to do some fiddling but at the end of the day the product works well and looks acceptable.

You see I am a perfectionist, I would have built the system out of Inconel and everything and every seem and bend and weld would have been perfection... But to what end, would it perform better, likely not. Actually I would hazard to guess Todds system would sound better and is quieter in cab due to the thicker wall.

__________________________________________________ __________

My review.

It does sound really really good, Very quiet at cruising speeds and RPM and absolutely ZERO drone at any RPM. I have not found one single RPM that this thing drones yet.

Now I say quiet but that is at cruise RPM's or constant RPM. If you get on the throttle the exhaust really does come alive with a very nice higher pitched sound. Way better then my Ti system and that was not a bad exhaust. The in cab noise is quieter just because the thicker walled stainless does not let so much sound escape from the piping itself. The sound comes out the back in stead. From the exhaust tips comes a pretty aggressive noise, nice high exotic car sound. I think for out side the car it is louder then my Cross Ti and interior sound is better. in all respects. The only down side is my Ti system was a fair bit lighter then this system. It was over 6g new though.

It's kind of the way I like it, windows open or on the street it speaks to you. Close them and it is so pleasant.

Thanks Todd
Great review. Glad to hear it all worked out. Enjoy!
 
Old Jul 11, 2013 | 09:16 PM
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Originally Posted by Engine Guy
Well I anteed up and pulled my panties from the crack of my bum and put the system on. Actually last night I had left 1/2 of it on waiting to talk to Todd. I did today and I decided to just do it.

Really I do not know where all the issues come from but nothing about my Exhaust is stock. Not headers, not turbo's, not nothing.

Really these problems were not out of the norm with the aftermarket world, we are not talking OEM made in thousands so lots of product refinement. When you add in so many different components this is what you get. I have seen it a thousand times and will a thousand more.

I will tip my hat to Todd... His product is not perfect but he was the only person that I talked to that said if I was un happy I could just return it. No other person making there sales pitch told me that besides him. Yes I had to do some fiddling but at the end of the day the product works well and looks perfectly acceptable. A person that is willing to stand behind what ones produces is worth much more to me then almost all other factors.

You see I am a perfectionist, I would have built the system out of Inconel and everything and every seem and bend and weld would have been perfection... But to what end, would it perform better, likely not. Actually I would hazard to guess Todds system would sound better and is quieter in cab due to the thicker wall.

__________________________________________________ __________

My review.

It does sound really really good, Very quiet at cruising speeds and RPM and absolutely ZERO drone at any RPM. I have not found one single RPM that this thing drones yet.

Now I say quiet but that is at cruise RPM's or constant RPM. If you get on the throttle the exhaust really does come alive with a very nice higher pitched sound. Way better then my Ti system and that was not a bad exhaust. The in cab noise is quieter just because the thicker walled stainless does not let so much sound escape from the piping itself. The sound comes out the back instead. From the exhaust tips comes a pretty aggressive noise, nice high exotic car sound. I think for out side the car it is louder then my Cross Ti and interior sound is better in all respects. The only down side is my Ti system was a fair bit lighter then this system. It was over 6g new though.

It's kind of the way I like it, windows open or on the street it speaks to you. Close them and it is so pleasant.

Thanks Todd
What did you do to resolve the fitment around the heat shield?
 
Old Jul 11, 2013 | 10:49 PM
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Old Jul 12, 2013 | 12:11 AM
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Originally Posted by bbywu
What did you do to resolve the fitment around the heat shield?
I originally was installing the exhaust system with the bumper and all heat shielding in place. Once I knew there were clearance issues I pulled the bumper as I was informed that some guys flip that aluminum panel over. Well that's what did but it is just not that simple as on each end there is a bulge that would normally go down. So I did some reshaping and trimming of that panel to make it look like it is suppose to go that way. As it is a formed panel with some ridges it takes some sneaky shaping but now it still looks pretty well OEM and there is more then enough room, it is very thin Alum so it is not hard to work. See attached pick prior to final shaping.

In the image it is the right basic shape but I cleaned up the overall lines and smoothed things out. The drivers side muffler is drooping a wee bit as it is just hanging on the studs not bolted tight. But you can see how high the pipe goes, originally the Alum shield would have been touching the pipe the whole length.
 
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Last edited by Engine Guy; Jul 12, 2013 at 12:14 AM.
Old Jul 12, 2013 | 04:52 AM
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Originally Posted by Engine Guy
I originally was installing the exhaust system with the bumper and all heat shielding in place. Once I knew there were clearance issues I pulled the bumper as I was informed that some guys flip that aluminum panel over. Well that's what did but it is just not that simple as on each end there is a bulge that would normally go down. So I did some reshaping and trimming of that panel to make it look like it is suppose to go that way. As it is a formed panel with some ridges it takes some sneaky shaping but now it still looks pretty well OEM and there is more then enough room, it is very thin Alum so it is not hard to work. See attached pick prior to final shaping.

In the image it is the right basic shape but I cleaned up the overall lines and smoothed things out. The drivers side muffler is drooping a wee bit as it is just hanging on the studs not bolted tight. But you can see how high the pipe goes, originally the Alum shield would have been touching the pipe the whole length.

Not keeping that heat shield on you will find out real quick once you run some hard runs will not be good in hot weather.
 
Old Jul 12, 2013 | 09:37 PM
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Originally Posted by 996tt550hp
Not keeping that heat shield on you will find out real quick once you run some hard runs will not be good in hot weather.

Not keeping what heat shield???? I used every shield that was originally on the car and that should be on the car. You must have missed my meaning. I just flipped the one in my picture so it is on the upside of the bolts instead of being under them.
 

Last edited by Engine Guy; Jul 12, 2013 at 09:40 PM.
Old Jul 12, 2013 | 10:39 PM
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Originally Posted by Engine Guy
Not keeping what heat shield???? I used every shield that was originally on the car and that should be on the car. You must have missed my meaning. I just flipped the one in my picture so it is on the upside of the bolts instead of being under them.

Ohh ok i must have missed that. Looks good the exhaust.
 
Old Jul 21, 2013 | 11:53 PM
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So I have spent some time with this exhaust now and I will say I am really really liking the sound that comes out of the thing.

I have not found one single spot where the thing drones. NONE! Seriously good sound at a cruise at all RPM's. It throws a lot of sound out the back of the pipes but it does not translate into the cabin.

It offers up a nice exotic car sound and in cab is very very quiet for a 3 inch system. With an open window when you go past someone you can hear the sound the exhaust puts out the back, or drive into a tunnel or under a bridge. The system would definitely not be Laguna friendly but not much is.

Now too address my Squeaky suspension and my overly loud Bosch fuel pump; then will I have a nice pleasant to drive at all times car again.
 

Last edited by Engine Guy; Jul 21, 2013 at 11:58 PM.
Old Jul 22, 2013 | 10:00 AM
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I am glad that you did buy this exhaust and gave your review on it..Thanks.
I have brought that system up several times with no feedback.. Maybe the competition was fearful.. LOL.
One thing you have not addressed was any difference in power?
 
Old Jul 22, 2013 | 11:19 AM
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Originally Posted by johnspeed
I am glad that you did buy this exhaust and gave your review on it..Thanks.
I have brought that system up several times with no feedback.. Maybe the competition was fearful.. LOL.
One thing you have not addressed was any difference in power?
My seat of the pants Dyno tells me nothing, but my old system was not shy on performance too.

I did not dyno the new system yet and I do not think it would tell me much unless I did them back to back; which is not going to happen now.

I can not see how this system would not be better then my old one as there is just not one single place where the flow would get stopped up.

Sorry John I wish I could tell you more real numbers.
 


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