Reviewed By Martin J (Wappingers Falls, NY) Reviewed for a 2011 Ford F-150 —9/4/2012 7:28 AM
Reviewed By Charles H (Rising Sun, MD) Reviewed for a 1994 Ford F-150 —2/24/2010 3:51 AM
By far the best exhaust I've ever purchased! Easy to install and the performance gain is incredible! All while being 49 state emissions legal! Mine is on a 94' F150 5.0L and it came with the high flow cat, the O2 bung welded on and the A.I.R. pipe welded on in front of the cat. Simple bolt on. I also added a Flowmaster muffler. All is good.
Reviewed By Jon L (BEAVER DAM, WI) Reviewed for a 2014 GMC Sierra —1/12/2015 8:24 PM
Absolutely love the Kooks Headers + Y-Pipe w/ High Flow Cats setup. Evened out my exhaust sound and eliminated the drone from my Flowmaster cat-back system. Went naked; No Wrap and No Ceramic Coating per manufacturer's recommendation. They said unless they were going in a racecar, a show car, or something small and compact, that they don't recommend ceramic coating them. Note: the Kooks Headers and Y-Pipe ONLY work with one another.