hello! exhaust noob here.. =D
i have a stock iswara 1.3 aeroback, everything stock.
wanna ask if this twinloop will improve my power+fc compared to the stock. is it better if change the stock extractor and bullet to 4-2-1 and 2" bullet? how will it affect performance+fc? will underpower?
can pm me the twinloop price only(include install) &
twinloop with 4-2-1 extractor and 2" bullet(include install).. thanks~