Separate names with a comma.
its not that simple you may loose power under low RPM's but may be gaining some at high rps.. and i persinally dont think that we have any low...
oh how much was this exhaust and whats the pipe size like 2.5?
get headers, and streight thru piping to the exhaust, and a short ram intake and you got a deep bad a$$ sound as sick as them... itlll sound legit.