Spanks!!! They look good. I really want a set for my project.

 

They are flaired to accommodate a 3.5" pipe to be inserted, ill verify , but im either going weld a V band or a ball/socket to adapt to the collector .

Yes i already had a 3.5" cutout installed in my old exhaust, i completely removed it , im going to run dual 3.5" now , no cutout .

 

wish I had to room to run dual 3.5" on the blown Camaro. my 3" collectors are already too close to the ground and show signs of heavy scraping.

 

Yeah those F body headers do hang down low dont they?
Might not be a bad idea to weld a square " foot" on the bottom of them to ease the rubbing . Maybe you have room to run oval sections?

 

don't know. I'm anxious to see your results. I'm still not convinced that the dual 3.5 is necessary, or if 1 7/8 with 3" duals is enough for my motor. guess I've just never seen anyone run this big of an exhaust on these motors.

 

You need to use a back pressure gauge like Pat and Tim.

 

We've done quite a few in the 2", we just don't advertise it in the catalog.

There has been a huge increase in the high boosted GM Trucks lately.

 

Yep. Pretty simple to check.

 

I'll break a back pressure gauge with my current exhaust LOL. 3" dual, H pipe, and big flowmasters behind a heads/cam/blown 408 stroker on 12lbs boost.

 

Don't count on it.