I think usually have dual exhausts, no cat, first muffler Straight, second none But I dont think this produces the best sound still when you have the automobile in BeamNG Drive. Especially with the porsche boxer 6 engines, the sound is quite distorted in a "Wrong" way compared to how it sounds in the Automation Noticed the intake seems to make the biggest sound change? Performance vs Race. Race sounds quite tinny and like an annoying fart can so i avoid it like the plague. Any tips fellas