I'm running a Weapon R with a custom 3" collector/DP... the main reason I went with it is the 2 to 1 piping on each set of cylinders ending up with two separate outlets to manufacture a collector out of. I sold off the dp that came with it to recoup some of my cost for the header (which is way expensive) but I think I ended up with about the best exhaust flow after all was said and done that I could. It also opens me up to run dual catless side pipes if I should ever choose and have a true 2 to one on both sides of the car. But that's for when I'm done with it as a daily driver and build the engine

 

Leaking coolant?

 

for the v1 header the coolant pipe has to be rotated if not the header pushes on the pipe making it leak

 

like stated lot more mid-high end hp very noticible

 

Can someone tell me what gasket I need to buy for this header?

Nevermind. Found it.

 

alright kool so i can just rotate the coolant pipe and it should be fine? any special way to rotate it? i've been driving on it for only a day now, doesn't seem like it's leaking the coolant, but it is still pretty close to the pipe..

 

IC didn't know that.

 

https://www.cobaltss.net/forums/show...nt+pipe&page=3
check post #43 it explains

 

alright kool, i'll try and take care of it tomorrow at work..

 

does the v2 header bolt on the stock downpipe? i have 07 ion redline

 

yup

 

Why would u run a header with a stock dp?