okay..

1. Stock Exhaust Setup (Stock Muffler, Mid-Pipe, Y-Pipe, Cats)
2. My Setup (Muffler delete, Stock Mid-Pipe, Aftermarket Y-Pipe, Stock Cats)
3. New Setup (Muffler delete, Stock Mid-Pipe, Aftermarket Y-Pipe, Test Pipes)

My question:
With my current setup I also have a short ram intake and crawford plenum, If I add the testpipes, do you think i'll be running too rich?? Do you think this setup will be alright on my car? Thanks

I have an 04 5AT coupe.

tito-

 

bump for my awesome MSPaint skills

 

^Definately got skills.

 

If anything, it will be lean. But I doubt the catback will do much to alter the a/f. The TPs will.

 

the only way to make it rich would be to add some huge injectors but when you do breather mods it makes you're a/f lean but very lil, nothiing the stock ECU wont adapt to in a couple of weeks

 

I would love to run HFC's, aftermarket Y pipe, and cut out the resonater and replace with a more free flowing one. I wonder how that yould sound.

 

lawd.. rumble bumble.. saves alot of weight but not alot of gas