CraigS
05-11-2012, 07:52 AM
Maybe that's a little relative since I already had these turndowns.
JEGS Performance Products 30645 JEGS Exhaust Turndowns
I had gotten the turndowns since a new set of FFR sidepipes helped but the exhaust was still too loud. So I cut the original turndowns off leaving the pipes as long as I could and installed the Jegs turndowns and angled the outlets downward. These helped a little bit. I have read and saved a bunch of stuff on other's exhaust mods and figured I would probably do the chambered pipes at some point. Then I came across these spiral inserts at Summit.
http://www.summitracing.com/parts/PTE-H3843/
These are cheap compared to $60-90 each for either cones or CC inserts so ordered a pair.Found they are 3.5 inch OD and so are the pipes so needed to mod them a little so they would fit inside the pipes
http://i3.photobucket.com/albums/y91/craig-s/th_spiralsadjusted.jpg (http://i3.photobucket.com/albums/y91/craig-s/spiralsadjusted.jpg)
Click to enlarge.
Testdrive was an hour ago and these things are fantastic.Very obvious noise reduction from the first start in the garage.Only about a 20 minute drive but I am very satisfied w/ the noise reduction and my butt dyno says they didn't hurt power.
JEGS Performance Products 30645 JEGS Exhaust Turndowns
I had gotten the turndowns since a new set of FFR sidepipes helped but the exhaust was still too loud. So I cut the original turndowns off leaving the pipes as long as I could and installed the Jegs turndowns and angled the outlets downward. These helped a little bit. I have read and saved a bunch of stuff on other's exhaust mods and figured I would probably do the chambered pipes at some point. Then I came across these spiral inserts at Summit.
http://www.summitracing.com/parts/PTE-H3843/
These are cheap compared to $60-90 each for either cones or CC inserts so ordered a pair.Found they are 3.5 inch OD and so are the pipes so needed to mod them a little so they would fit inside the pipes
http://i3.photobucket.com/albums/y91/craig-s/th_spiralsadjusted.jpg (http://i3.photobucket.com/albums/y91/craig-s/spiralsadjusted.jpg)
Click to enlarge.
Testdrive was an hour ago and these things are fantastic.Very obvious noise reduction from the first start in the garage.Only about a 20 minute drive but I am very satisfied w/ the noise reduction and my butt dyno says they didn't hurt power.