I know that this belongs in the External Engine forum, but I haven't gotten many responses in there, and this is kinda drag racing related, sooo......

Hooker LT headers, into 3" y-pipe w/ Flowmaster 4" collector, then reduce from 4" to 3.5" back to a 3.5" cutout, then reduce to 3" into Hooker catback. Do you think this will be enough exhaust for my mods in my sig? I think that with the combo stated above, I could maintain some "quiet" on the street, and still have a free flowing exhaust for the track, whatcha think? Would this setup cost me alot of HP and TQ versus duals?

 

I run a stock pie from the y back. I know it cost me some hp but I doubt that much when the cutout is open. I use the stock muffler for driving around and it makes the car very quiet.Till you open the cutout. I don't know how old you are but the electric cutout was my best purchase. So nice not to have crawl in the dirt to uncap.

 

Already have the Hooker cat back, might as well use it

 

ttt