loudest GT3 center bypass?
01-04-2019, 12:57 PM
#31
Drifting
My GRP bypass got me pulled from AMP. Its loud.
01-04-2019, 02:56 PM
#33
GMG
Love mine
Love mine
01-04-2019, 03:19 PM
#34
Rennlist Member
No experience with CMS. GMG loudest I've heard; though has a little drone. RSS is best trade-off for least amount of drone relative to volume it puts out; they tell me due to actual x-pipe design cancelling drone (it's loud but I've never detected any drone on 997 or 991's). SW is the most mellow note and oem look and one that is most livable on a dd. I did experience a tiny bit of drone on 997.1 3.6 only. SW and Alex are great to work with.
RSS, SW and GMG all good products depending on what you want. GMG for sure the loudest. No first hand experience with the rest of them. So, no opinion.
RSS, SW and GMG all good products depending on what you want. GMG for sure the loudest. No first hand experience with the rest of them. So, no opinion.
01-04-2019, 03:41 PM
#35
Love my GMG, thats why its going straight on .2RS upon delivery! Might add GMG long tube headers for some more noise since I already have the bypass!
https://shop.gmgracing.com/collectio...xhaust-headers
Heard this setup at Rennsport 2018 and it sounded ridic!
https://shop.gmgracing.com/collectio...xhaust-headers
Heard this setup at Rennsport 2018 and it sounded ridic!
01-04-2019, 05:21 PM
#36
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Anybody that lives down here in South Florida and has seen this Auratium Green GT3 in person will tell you that it is the loudest Porsche they've ever heard. Center bypass used was Sharkwerks along with some Fabspeed headers. Contact me if you'd like more info - David@WheelsBoutique.com
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Follow us on YouTube: www.youtube.com/user/WheelsBoutique
Largest Dealer In The World for HRE Wheels, ANRKY Wheels, Vorsteiner Wheels & Aero, Akrapovic Exhaust, & iPE Exhaust
BBS, Forgeline, & TechArt Premium Dealer
Brembo / Rotiform / KW / H&R / Novitec / Brabus / Mansory and tons more...
01-04-2019, 06:53 PM
#37
Rennlist Member
No experience with CMS. GMG loudest I've heard; though has a little drone. RSS is best trade-off for least amount of drone relative to volume it puts out; they tell me due to actual x-pipe design cancelling drone (it's loud but I've never detected any drone on 997 or 991's). SW is the most mellow note and oem look and one that is most livable on a dd. I did experience a tiny bit of drone on 997.1 3.6 only. SW and Alex are great to work with.
RSS, SW and GMG all good products depending on what you want. GMG for sure the loudest. No first hand experience with the rest of them. So, no opinion.
RSS, SW and GMG all good products depending on what you want. GMG for sure the loudest. No first hand experience with the rest of them. So, no opinion.
Sadly, my LRP days are over.
01-04-2019, 07:55 PM
#38
Race Director
Love my GMG, thats why its going straight on .2RS upon delivery! Might add GMG long tube headers for some more noise since I already have the bypass!
https://shop.gmgracing.com/collectio...xhaust-headers
Heard this setup at Rennsport 2018 and it sounded ridic!
https://shop.gmgracing.com/collectio...xhaust-headers
Heard this setup at Rennsport 2018 and it sounded ridic!
01-04-2019, 09:16 PM
#39
Drifting
No drone with my bbi/GRP. Only track I've been on is Thunderhill and they're fairly lenient with sound. I bet I'd get flagged at Laguna though, from what I've been told.
01-05-2019, 10:45 AM
#40
01-05-2019, 10:53 AM
#41
01-05-2019, 10:53 AM
#42
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When they are connected the sound differential with flaps opening and closing while driving is very annoying to me.
I have experienced zero drone with this setup.
01-05-2019, 11:00 AM
#43
I had the valves disconnected for about a month but couldn't live with the drone (GMG). Drone is very subjective but for me it wasn't compatible with frequent/ daily use.
Last edited by jkfuel; 01-05-2019 at 11:21 AM.
01-05-2019, 11:05 AM
#44
Thank you so much as this is answer I needed to pull trigger on this system ... love my Touring just want some retro exhaust sound when not fully on throttle ... roads and salt prevent enjoy my Dec 22nd delivery ... OTTAWA must be same ... thank you and cheers
ps my next option was stepping up to Dundon Street headers as everything seems to be positive and the 40 lbs of torque at 4400 rpm would be welcome in the mid range with this manual setup for twisty backroad use ... not sure if 25 lbs of less weight could be felt on road but could even out the 35 lbs drop in front windshield area from my Antigravity lithium battery
ps my next option was stepping up to Dundon Street headers as everything seems to be positive and the 40 lbs of torque at 4400 rpm would be welcome in the mid range with this manual setup for twisty backroad use ... not sure if 25 lbs of less weight could be felt on road but could even out the 35 lbs drop in front windshield area from my Antigravity lithium battery
01-05-2019, 12:46 PM
#45
Drifting
Wait, ok... is this new CMS exhaust the same as the "infinity" bypass just with separate, traditional tips? If so, I fail to see how it's any different from the bbi/GRP, which also does not have the tube in the back like CMG, and instead has the two halves joined near the tip opening. So I gotta wonder why one somehow makes power, while the other doesn't. I've never heard of a center bypass actually making power. When you get down to it, it's a glorified exhaust tip while removing a muffler.
