Hey guys

today i went to 2 differents exhaust places, and they both said that installing dual cats on my car was impossible.

I have heddman ceramic coated headers, and y-pipe with a hi-flow cat , finishing at a flowmaster catback system. 2.5 "

I have 2 2.5" cats now, The guys told me that the way my subframe connectors r designed its impossible to pipe the pipes!
I have Mac subs.

My exhaust is great, power sound, but i would've liked to have that extra kick. I've been reading on the N10 option from GM, the dual cat system, but its about 1500 $ us... Thus me wanting to replicate it for alot less.

Should i just get my money back on the cats? no big prob, but just want to know the truth.

Thx