slp dual/dual muffler
 

I wnt to make my car quieter. Can this muffler be welded to the TSP rumbler? Will I loose some power?

with alot of fab work you can but not worth it. an slp loudmouth resisentor will bolt up to it. as for gains, you might lose a little bit of power but not much, the dual/dual muffler flows extreamly well. actually i'm swaping out my borla for an slp d/d