Originally Posted by bambbrose
I have read that that exhaust will choke your engine... think about it. an s2000 has 2 of them for 4 cylinders and produces 240 horse.. so I figure that muffler is probably good for only about 120. but if you have a d series and aren't pushing very much power it would be ok. a b series it would choke off power though I would think.
You do know that the engine runs through a single cat then splits after that right? So essentially the 2 mufflers isn't for performance but more for style.