🔩 Gibson GP500S Performance Header in Stainless Steel Review

Overall very satisfied with the product. Personally I have used different screws, the ones that come with are just standard screws and I wanted to replace them with stainless ones. But no leaks do what they are supposed to and fit perfectly.

Got them for my 05 2500hd 6.0. The fit is excellent, the ignition cables do not rub. Many people say no change in sound or performance, I've gotten a little louder but a very noticeable increase in performance, now it really pulls uphill without downshifting.

Ok I like the way they look and they were bolted on properly so installation was easy which was great but the sound didn't change and the throttle response was same so for $500 it was just visual so said thats my reason for only 3 stars

this is my second set of these headers. I have two GM 6.0 V8 work trucks that had the same exhaust manifold bolt problems. These tracks look great and sound great! They come with fasteners and gaskets, but you will need to purchase o-rings to connect the manifold to the Y-tube. Also, I had to distort and replace the dipstick tube to install a passenger side manifold that is unrelated to the manifold. The titles fit perfectly and offer great value for money!