FSUNole17

iTrader: (18)

hey all, i just recently installed the TSP catted y. ONLY reason i went with a catted Y was for emission purposes. i want the most power and sound and i was wondering how much gutting these cats would help. my understanding is that the magnaflow cats used in teh tsp y flow very well. any suggestions?

Lithium

iTrader: (47)

gutting the cats will give you the most power and sound over normal cats. You should gain about 5 hp or so, and it will be louder.

co.6z28

iTrader: (1)

i gutted mine. that was only cause one went out 2 weeks after install. do it you will like it