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      03-13-2013, 10:03 PM   #15
Second Lieutenant

Drives: '13 Cadillac CTS-V Sedan 6MT
Join Date: Dec 2008
Location: Vancouver, Canada

iTrader: (0)

What if I were to keep the stock x-pipes with the stock cats?

I will be going with a VT2-585 because I think I prefer the peace of mind that comes with the intercooler. However, I've had the displeasure of driving behind catless cars, and I'd rather not put others in that situation.

I don't mind if I'll be losing 30-50bhp because of that, because my ultimate goal is to equal or just beat an LSA-powered 6MT CTS-V in straight-line performance. With a DCT, even a VT1 kit will do that I'm sure.

So, how will smog / OBD check react to a supercharged car running on software tune and stock cats? Up here I think they are getting rid of all sniffers and just doing OBD code reading now.