exhaust / bypass - which one to choose?
#32
You are welcome to checkout my exhaust in person since you are not far from me. Pm me.
#33
RL Community Team
Rennlist Member
Rennlist Member
#34
side muffler bypass is the way to go. it is not more expensive than the final muffler bypass. on top of that it will not ruin the aero diffusing design that works with the oem muffler. cargraphic has the best design with a valve control that works with pse. I have them on order and will report back when I have them installed. akrapovic doesn't have anything in similar and their slip on muffler only saves 4 lbs from oem. the slip on costs 5k, and that's not a price efficient mod.
#35
Rennlist Member
side muffler bypass is the way to go. it is not more expensive than the final muffler bypass. on top of that it will not ruin the aero diffusing design that works with the oem muffler. cargraphic has the best design with a valve control that works with pse. I have them on order and will report back when I have them installed. akrapovic doesn't have anything in similar and their slip on muffler only saves 4 lbs from oem. the slip on costs 5k, and that's not a price efficient mod.
#36
Rennlist Member
Join Date: Jan 2013
Location: West Vancouver and San Francisco
Posts: 4,282
Received 1,265 Likes
on
616 Posts
If you are taking suggestions, I'd love to have something like that - sport button pushed, it's under 90db (to pass Laguna sound limit), sport button not pushed (default) - it's cup car sound (essential safety measure to avoid hitting a deer, for example).
#37
Rennlist Member
That's what I was hoping to accomplish as well. After talked with EVOMS, it may never happen. You can create a solution using either the iPE or Cargraphic, but no one knows what it will sound like or how much power could potentially be lost.
#38
Rennlist Member
Join Date: Dec 2014
Location: Orange County, CA
Posts: 176
Likes: 0
Received 0 Likes
on
0 Posts
All these things are subjective . I feel like every exhaust has some drone in low rpm constant throttle. My assessment is BBI has higher pitch sound at high rpm and at 3 k it does drone a bit and tolerable to me. But i am used to that. Pretty much every exhaust i had 997.2 Gt3 Shark , Scuderia Capristo , 430 unplugged valves had some drone.
You are welcome to checkout my exhaust in person since you are not far from me. Pm me.
You are welcome to checkout my exhaust in person since you are not far from me. Pm me.
#41
Found a lot of info on the Cargraphic systems here http://www.cargraphicts.com/en/produ...odels/991-gt3/
#42
Racer
Thread Starter
power lost?!
#44
I don't know exactly when stock valves open, but I thought it was 4,000? It seems to make some sense that the biggest delta without the valves is right before they would normally open.
#45
Basic Sponsor
Rennlist
Site Sponsor
Rennlist
Site Sponsor
Guys, sorry for the short response but I am at the St. Pete GP but also love going on RL when I have a break.
We have a Center Section with built in tips as well as a muffler delete system, which I will have my guys post about shortly.
Thanks,
We have a Center Section with built in tips as well as a muffler delete system, which I will have my guys post about shortly.
Thanks,
__________________
James F. Sofronas | President & Owner
Global Motorsports Group ™
E: james@gmgracing.com
P: +1 (714) 432-1582
F: +1 (714) 432-1590
A: 3210 South Shannon Street, Santa Ana, California 92704
W: gmgracing.com
James F. Sofronas | President & Owner
Global Motorsports Group ™
E: james@gmgracing.com
P: +1 (714) 432-1582
F: +1 (714) 432-1590
A: 3210 South Shannon Street, Santa Ana, California 92704
W: gmgracing.com