whats the difference between the 16822 and the 16823, i have a iroc 350 with edelbrok headers and im cutting out the cat, which would be best?

 

I couldn't find the 16822, but I have the 16823 in my car with the same headers and no cat. It fits great and sounds even better.

 

Camaro Firebird 1983-85 305 (G,F&7) 177 3 2 2-1/2 3 Dual 16822

Camaro Firebird 1986-92 305 HO TPI(G,F&8) 177, 210 3 2 2-1/2 3 Dual 16823

 

whats the difference
will the 16822 work, its 60$ cheaper

 

Thats right the 22 is th eone you have to modify to fit right if you have the time and the means to modify it to fit save yourself 60 bucks. To save time and aggrivation buy the 23. Other than that they are the same. Mark knows what you need to modify to make it work.

 

k thanks, what all needs to be modified mark?

 

There is a rectangular 4 bolt flange that hooks bolts to the HO engine's cat. Just cut it off and weld.

 

thats all...sounds good, does summit sell a flange and gasket to hook it up to, because im cutting out the cat, and that might be easier. also its a 3" intermediate pipe and 2 1/2" outlet right?

 

3'' all the way into the muffler, where the muffler pipes are 2.5'' into 3'' tips.

There is no kit, I'm aware of.