KOOKS Race series mufflers do the trick.....
Reviewed By Leo G (Worcester, MA) Reviewed for a 2014 Ford Mustang —11/20/2014 3:38 AM
I used these mufflers as resonators on my 2014 mustang GT with a pro series Livernois longblock.......The car has KOOKS longtubes and 3" pipes back to Bassani racing mufflers.......I needed something to quite the Stang down a notch or two..... these did the trick......great sound!
2006 GTO looks connection pipes
Reviewed By Mahmoud A (Saint Cloud, MN) Reviewed for a 2006 Pontiac GTO —11/4/2014 1:51 AM
These pipes were fitting really perfect and now the car sounds a way better and I can tell. I really support people buying them and try to get them from here because here is cheaper than anywhere else