Originally Posted by ginganggooly
jdm 4-1 header, 2.5" cat, 2.5" mandrel bent exhaust two resonators, xforce 2.5" twin loop, and no drone. i love the note, and the fact it doesn't make my ears bleed on the freeway.
adding a hot dog resonator or three does not harm performance. i dynoed my car before and after adding a resonator and changing straight through rear mufflers and there was no significant change.
i've ridden in a few cars with twin loop exhausts and imo, if you find them drony and unpleasant, you'd be better of keeping a factory system because the twin loops are about as quiet as they come without sticking baffles and resonance chambers in there.
*note
i was used to driving with an n1 style muffler, so my opinions on exhaust noise may be different to other people.