View Single Post
Old 11-12-2011, 09:19 AM   #3
piecesparts
Parts and more parts
 
piecesparts's Avatar
 
Join Date: Nov 2003
Location: Lebo, Kansas (middle of nowhere
Posts: 6,821
Re: Headers on the 2011 GMC

Quote:
Originally Posted by grayharville View Post
How much gains we talkin? Any problems with gasket leaks? This might be a mod ill do in the future if its worth it.
Posted via Mobile Device
I have not been on a dyno with the truck for actual numbers, but the "seat of the pants" and the acceleration ability tells me that I have opened up the exhaust to allow for a more aggressive acceleration capability. The truck now makes more use of the aftermarket air intake that I put on and the two are now working together much better. It is surprising the amount of restriction the manufacturers put into these vehicles.

There are no gasket leaks and I don't there will be in the future either. The headers came with a set of aluminum gaskets for the engine ports and the lower connections are all a "ball and socket" design. All of the bolts have locknuts to maintain the tightness in them.
__________________
Frank
piecesparts is offline   Reply With Quote