[speed_freax]

Originally Posted by tC-sCharged

If you want the best for the scion tc, then go with the
HKS Hi-Power Exhaust - Sound exhaust but improves performance
(sound clip) http://www.youtube.com/watch?v=QZvdkr3S5P4 (w/ the Injen CAI.
Greddy Turbo-back Exhaust -Main Key, performance, then sound
(sound clip) http://www.youtube.com/watch?v=_upWMXPaujE

have anymore questions, just pm me. I DO my homework

will i have problems with smog test if i will be having these modifications?
i'm just new to mods and will appreciate any suggestions.
any websites recommended that has good deals and reliable?
thanks