🔥 Gibson GP129S Stainless Steel Performance Exhaust Header Review

Although they don't increase much but maybe 5hp they fit perfectly and sound better overall when installed in 6.2 13 Cadillac

Rust everywhere after 1 1/2 weeks of installation. Probably stainless steel. Also, there were dents everywhere. NOT A GOOD PRODUCT.

Gibson Manifold added perfect sound to my 2002 Chevy Avalanche. The manifold needed to be replaced, but I did preventive maintenance on my truck and ordered this part! No complaints and the part looks great under the hood!

To be specific, I like the Amazon garage feature for my 2007 Hummer H2. I just popped in my Hummer glasses and ordered. Fits perfectly. Of course I had an expert setup and everything is fine. Fantastic title. Bought the same headers 2 years ago for our 2004 Ford F-150. Fits perfectly. Our mechanic said both were easy to install.

The worst part about the update was the shutdown of the storage system. But after reading reports of broken bolts, I invested in a $5 can of penetrating oil and sprayed all the bolts the day before the project started. The bolts came out with no problem and the old system was removed. Gibson headers worked flawlessly with no hiccups or modifications. I recommend replacing the O2 sensors with new manifolds prior to installation as this is an issue that you do not have to deal with once the new…

Let me start by saying that Gibson really needs to be more detailed in their instructions. The video they post is a waste of time to make you buy headlines that make you think it will be easy. I'm very mechanical, but the driver's side of the Y-pipe was probably the biggest pain I've ever had. Someone had to be downstairs to pull the exhaust pipe out while I pushed the head bolts, and then I had to pry the end of the flange a good 1/4 inch to push the bolts through. a gasket slipped between the