If I purchase these hedman headers SKU 68478 at:
http://www.autopartswarehouse.com/pe...4&brandid=3316


Will I be able to use my stock Y-pipe?

 

it says modification required, if your set on those get them and modify you exsisting y pipe,,, or just get some headers that come with Y

 

Even if you could mod it to fit, why bottle up headers with a stock Y?

JamesC

 

Good point. It was a stupid question after all.

 

i have a stock y with the dual cats out,,, and it looks big and not rusty, i dont see why i shouldnt use it.

 

After buying some hedmen headers and a y-pipe, The stock ones would not work without modification. You'll pay the muffler shop the same or more that it would cost to just go ahead and buy the 3" y-pipe.
----------
The passenger side was a PITA to install. I had to remove the motor mount bolt and raise the engine about 6". very tight fit. I had to weld in a 02 bung in the drivers side. finished the header and y-pipe install last night. Sounds good. Taking to the shop Saturday to have the final pipe welded on to complete the exhaust.

 

why is a 3 inch y pipe even nessacary, it just bolts up to single three inch anyways, so why not dual 2.5's or w.e stock is

 

They also sell 2.5". The whole point of installing headers is to give your engine the ability to breath. Ideally, one would go 3" all the way out the back. Your h/p and gas mpg will improve.