Lightest / Best sounding exhaust
#1
Lightest / Best sounding exhaust
I don't want to start another "best sounding thread." Currently own a EP2, looking into a lighter and better performing system. 3" straight pipes wouldn't bother me but, I do have emissions to pass from time to time. A straight pipe system would have to have the ability to swap a cat pipe for actual cats "when not at the track of course."
What's your thoughts?
What's your thoughts?
#2
Here is a great option: SpeedTech 3" X-Pipe, modular design with easily swapped HJS cats and/or cat bypass pipes.
Very lightweight with full 3" flow and fantastic sound, as well. Pictured with dual, full 3" tips, but can be supplied to re-use the OEM tips.
Very lightweight with full 3" flow and fantastic sound, as well. Pictured with dual, full 3" tips, but can be supplied to re-use the OEM tips.
__________________
991.2 GT3 RS Weissach Racing Yellow
991.2 Turbo S GT Silver
991.2 GT3 Chalk (Manual)
2022 Cayenne White
former 1972 911T white, 1984 911 3.2 Targa black, 993 cab white, 993TT arena red, 993TT silver, 996TT speed yellow, 991.1 GT3 white
www.speedtechexhausts.com
info@speedtechexhausts.com
Testimonials facebook SpeedTech Exhaust Videos
991.2 GT3 RS Weissach Racing Yellow
991.2 Turbo S GT Silver
991.2 GT3 Chalk (Manual)
2022 Cayenne White
former 1972 911T white, 1984 911 3.2 Targa black, 993 cab white, 993TT arena red, 993TT silver, 996TT speed yellow, 991.1 GT3 white
www.speedtechexhausts.com
info@speedtechexhausts.com
Testimonials facebook SpeedTech Exhaust Videos
#3
Just ordered this same exhaust from John yesterday, it can't get here soon enough!
#4
Do you have a 997.1 or 997.2? A few of us have the BBI exhaust, which uses the FJS cats as the mufflers relocated from the stock location to where the mufflers ordinarily go. EGTs remained low enough to not cause issues even when running 24psi in the heat of a desert airstrip event. Sound is obviously subjective and "best sounding" like you said is different for everyone...but I can tell you what the BBI exhaust sounds like...it sounds like a combination of a GT2 and a GT3. Basically a higher pitched GT2 and no decel dump truck sound...instead you get gurgles and pops on decel. Its a work of art IMHO.
#5
If given the choice, I would not choose a classic X design where the exhaust gases crash into one another at the merge point. Many have argued that the X creates a bottle neck in these types of exhausts . This may not be a issue for street use but might be under prolonged track use. Several exhaust manufacturers I have talked with have confirmed this also and it seems to make sense when you think about it. A better solution in my opinion is an exhaust that uses pipes that form two "U" bends that have a small cross talk between them where the exhaust gases from the left and right bank just kiss each other instead of crashing into each other.
Last edited by pwdrhound; 12-17-2014 at 02:16 PM.
#7
This would definitely give me the flexibility with the Cat issue. In fact, I was looking at this setup last night. What's your thoughts on what Pwdrhound stated below?
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#8
Longborder - you make some valid points. What exactly is "best sounding." Your explanation sounds good. I have a 997.1 with EP2. The EP2 has a nice deep sound with no drone, its pretty and also pretty heavy (64lbs.)
pwdrhound - when do you expect delivery on your unit? Nice to see you decided on the TI version. Your explanation on the X design "thermal zone" makes sense. To me, I would think that this area would be hard to control flow. Looking at your photo, the volume where the 4 connect doesn't appear to match the total volume / diameter of 2 pipes.
pwdrhound - when do you expect delivery on your unit? Nice to see you decided on the TI version. Your explanation on the X design "thermal zone" makes sense. To me, I would think that this area would be hard to control flow. Looking at your photo, the volume where the 4 connect doesn't appear to match the total volume / diameter of 2 pipes.
#9
For example, here is some feedback we received from one of our 997TT 3.0 X-Pipe customers that hangs with some of the Italians:
John, I thought you were being a little optimistic with that statement ("it will compete with any exotic"), as anything is better than a stock or straight pipe sound, but my friend, YOU WERE NOT JOKING!!
I am so giddy to finish work to just drive home, my friend, it is insane - the tone, shriek up top, the friggen turbo whistling everywhere.... it is intoxicating!!!Well done, good job!!!!
If you read our testimonials, you will see many more forum members speaking out like this...so this is why we do it like we do. I use one on my own car and I have to tell you, the experience of driving from inside the car is very similar to the aural experience of operating a Ferrari F430 and it has transformed the Porsche Turbo driving experience to a level that is hard to put into words. It's epic! Other designs are not like this - I have used, tested or heard pretty much every one of them and IMO, we have achieved something very special...and the customer feedback/reinforcement to let us know we are doing things right continues to come in every week.
__________________
991.2 GT3 RS Weissach Racing Yellow
991.2 Turbo S GT Silver
991.2 GT3 Chalk (Manual)
2022 Cayenne White
former 1972 911T white, 1984 911 3.2 Targa black, 993 cab white, 993TT arena red, 993TT silver, 996TT speed yellow, 991.1 GT3 white
www.speedtechexhausts.com
info@speedtechexhausts.com
Testimonials facebook SpeedTech Exhaust Videos
991.2 GT3 RS Weissach Racing Yellow
991.2 Turbo S GT Silver
991.2 GT3 Chalk (Manual)
2022 Cayenne White
former 1972 911T white, 1984 911 3.2 Targa black, 993 cab white, 993TT arena red, 993TT silver, 996TT speed yellow, 991.1 GT3 white
www.speedtechexhausts.com
info@speedtechexhausts.com
Testimonials facebook SpeedTech Exhaust Videos
Last edited by John@SpeedTech; 12-03-2014 at 12:07 PM.
#10
Below is your answer!!
So I do not repeat myself, here is my thread on my 3"Speedtech cat-less race system:
https://www.6speedonline.com/forums/...al-3-tips.html
So I do not repeat myself, here is my thread on my 3"Speedtech cat-less race system:
https://www.6speedonline.com/forums/...al-3-tips.html
#12
Hi Al! It's in full production right now and should be completed next week. It will make the tree for sure :-)
Thanks again for the order, I think you are going to love this one!
Thanks again for the order, I think you are going to love this one!
__________________
991.2 GT3 RS Weissach Racing Yellow
991.2 Turbo S GT Silver
991.2 GT3 Chalk (Manual)
2022 Cayenne White
former 1972 911T white, 1984 911 3.2 Targa black, 993 cab white, 993TT arena red, 993TT silver, 996TT speed yellow, 991.1 GT3 white
www.speedtechexhausts.com
info@speedtechexhausts.com
Testimonials facebook SpeedTech Exhaust Videos
991.2 GT3 RS Weissach Racing Yellow
991.2 Turbo S GT Silver
991.2 GT3 Chalk (Manual)
2022 Cayenne White
former 1972 911T white, 1984 911 3.2 Targa black, 993 cab white, 993TT arena red, 993TT silver, 996TT speed yellow, 991.1 GT3 white
www.speedtechexhausts.com
info@speedtechexhausts.com
Testimonials facebook SpeedTech Exhaust Videos
#14
I had the Speedtech system on my 996T (but it had a muffler), with over 10 000km and other then the WHOLE system having a light amber tone, IT NEVER DID what that system did. My whole Speedtech system, including the "X" was all one color. I only have 1000km on my 997T with this same system (but with out muffler) and it looks brand new.
I understand for turbo cars the bigger the diameter and shorter the distance for the exhaust is better ( I ran a 4" down pipe to a 3.5" QTP electronic cutout right off my down pipe in my Supra days!!). I have been around turbo cars A LONG time, actually all my driving life! If everyone on this forums was looking for a race car 1200hp beast, we would all be driving around with straight pipes as the absolute best solution to peak hp!! I believe a lot of individuals are more like myself (concerning an exhaust) that are driving true STREET car: wants a exotic sound to match the emblem of car we are driving , looks the part, supports 500-800+hp...bottom line something that makes HP and stirs the soul when driving.......what I have does all that and more!!!
I purchased my 997T with straight pipes and NOTHING would make me want to gain a few hp even if I was making 1000+hp and give up the system I have for a true exotic street car!! I can say with the system I have, that switching back over to even straight pipes I am pretty confident I wouldn't be faster. If I didn't sell my straight pipes I would of VBOX the difference (I was going to, but all my other mods came in the same time...63.5mm turbo, ERP triple with LWFW etc)
The system I have is so free flowing and the numbers do not lie. I have a member that lives near by and I have the exact same Proto tune (Todd used it as a base TUNE for my car as we use the SAME 94 Petro Canada Fuel & live in the same area etc), the same Proto 63.5VTG turbos and after talking to each other we test very conservative under the same repeatable conditions (how I do my 60-130 times: https://www.6speedonline.com/forums/...ight-pipe.html) . The other member Vboxes 60-130 7.2 WITH 997.2 INTERCOOLERS (AWE EXHAUST) and I do 7.1 WITH STOCK intercoolers (3"Speedtech Exhaust). Now I do have a 82mm GT3 throttle body, 82mmIPD plenum and EVOMS LW crank pulley, but most would agree those are more for throttle response (which is CRAZY by the way with my ERP Triple LWFW) and would not come close to the performance advantage to me having instead 997.2 intercoolers for 60-130 times. Lets say my extra mods at BEST case scenario equal out compared to his 997.2 intercoolers. Considering exhaust plays such a vital role to turbo performance wouldn't we see a bigger difference in times. So much between the cars that really matter for performance are the same between the cars (exact fuel, climate, exact Proto tune & turbos) and we run almost the same times!
I could of purchased a 1400RWHP supra (almost did BTW) or even a GTR etc..... but I bought my 911 for the whole experience and this exhaust completes that exotic experience period!!
I understand to a point what you are saying about the merge, but for the 95% of the 500-800+hp 911 customer, it does not measurably effect performance, but adds a considerable other joyous experiences that are measured by the smile that extends from ear to ear!!
Cheers and enjoy either which way you like YOUR 911!
Thanks
Bobby Ali
ba
I understand for turbo cars the bigger the diameter and shorter the distance for the exhaust is better ( I ran a 4" down pipe to a 3.5" QTP electronic cutout right off my down pipe in my Supra days!!). I have been around turbo cars A LONG time, actually all my driving life! If everyone on this forums was looking for a race car 1200hp beast, we would all be driving around with straight pipes as the absolute best solution to peak hp!! I believe a lot of individuals are more like myself (concerning an exhaust) that are driving true STREET car: wants a exotic sound to match the emblem of car we are driving , looks the part, supports 500-800+hp...bottom line something that makes HP and stirs the soul when driving.......what I have does all that and more!!!
I purchased my 997T with straight pipes and NOTHING would make me want to gain a few hp even if I was making 1000+hp and give up the system I have for a true exotic street car!! I can say with the system I have, that switching back over to even straight pipes I am pretty confident I wouldn't be faster. If I didn't sell my straight pipes I would of VBOX the difference (I was going to, but all my other mods came in the same time...63.5mm turbo, ERP triple with LWFW etc)
The system I have is so free flowing and the numbers do not lie. I have a member that lives near by and I have the exact same Proto tune (Todd used it as a base TUNE for my car as we use the SAME 94 Petro Canada Fuel & live in the same area etc), the same Proto 63.5VTG turbos and after talking to each other we test very conservative under the same repeatable conditions (how I do my 60-130 times: https://www.6speedonline.com/forums/...ight-pipe.html) . The other member Vboxes 60-130 7.2 WITH 997.2 INTERCOOLERS (AWE EXHAUST) and I do 7.1 WITH STOCK intercoolers (3"Speedtech Exhaust). Now I do have a 82mm GT3 throttle body, 82mmIPD plenum and EVOMS LW crank pulley, but most would agree those are more for throttle response (which is CRAZY by the way with my ERP Triple LWFW) and would not come close to the performance advantage to me having instead 997.2 intercoolers for 60-130 times. Lets say my extra mods at BEST case scenario equal out compared to his 997.2 intercoolers. Considering exhaust plays such a vital role to turbo performance wouldn't we see a bigger difference in times. So much between the cars that really matter for performance are the same between the cars (exact fuel, climate, exact Proto tune & turbos) and we run almost the same times!
I could of purchased a 1400RWHP supra (almost did BTW) or even a GTR etc..... but I bought my 911 for the whole experience and this exhaust completes that exotic experience period!!
I understand to a point what you are saying about the merge, but for the 95% of the 500-800+hp 911 customer, it does not measurably effect performance, but adds a considerable other joyous experiences that are measured by the smile that extends from ear to ear!!
Cheers and enjoy either which way you like YOUR 911!
Thanks
Bobby Ali
ba
If given the choice, I would not choose a classic X design where the exhaust gases crash into one another at the merge point. Many have argued that the X creates a bottle neck in these types of exhausts which appears to be true based on the purple heat discoloration at the "X" of the exhaust pictured below. This may not be a issue for street use but might be under prolonged track use. Several exhaust manufacturers I have talked with have confirmed this also and it seems to make sense when you think about it. A better solution in my opinion is an exhaust that uses pipes that form two "U" bends that have a small cross talk between them where the exhaust gases from the left and right bank just kiss each other instead of crashing into each other.
Exhaust restriction | Flickr - Photo Sharing!
Exhaust restriction | Flickr - Photo Sharing!
#15
If given the choice, I would not choose a classic X design where the exhaust gases crash into one another at the merge point. Many have argued that the X creates a bottle neck in these types of exhausts which appears to be true based on the purple heat discoloration at the "X" of the exhaust pictured below. This may not be a issue for street use but might be under prolonged track use. Several exhaust manufacturers I have talked with have confirmed this also and it seems to make sense when you think about it. A better solution in my opinion is an exhaust that uses pipes that form two "U" bends that have a small cross talk between them where the exhaust gases from the left and right bank just kiss each other instead of crashing into each other.
Exhaust restriction | Flickr - Photo Sharing!
Exhaust restriction | Flickr - Photo Sharing!
In the end, I think Bobby has summed it up perfectly above. Thanks for your feedback, Bobby, I appreciate your insight and contribution to this thread.
__________________
991.2 GT3 RS Weissach Racing Yellow
991.2 Turbo S GT Silver
991.2 GT3 Chalk (Manual)
2022 Cayenne White
former 1972 911T white, 1984 911 3.2 Targa black, 993 cab white, 993TT arena red, 993TT silver, 996TT speed yellow, 991.1 GT3 white
www.speedtechexhausts.com
info@speedtechexhausts.com
Testimonials facebook SpeedTech Exhaust Videos
991.2 GT3 RS Weissach Racing Yellow
991.2 Turbo S GT Silver
991.2 GT3 Chalk (Manual)
2022 Cayenne White
former 1972 911T white, 1984 911 3.2 Targa black, 993 cab white, 993TT arena red, 993TT silver, 996TT speed yellow, 991.1 GT3 white
www.speedtechexhausts.com
info@speedtechexhausts.com
Testimonials facebook SpeedTech Exhaust Videos
Last edited by John@SpeedTech; 12-04-2014 at 04:55 PM. Reason: spell correction