I want a duel exhaust system on my mx3. it is a four cylinder engine, with a full stock system on it. I want to know if I can have a dual exhaust system put on, and if so what would be the pros and cons of doing such?
I tried to achieve the same results with a 91 accord. I put a header, test pipe, catback, and CAI on it. It sounded alot cooler but the mileage and power remained the same. Good Luck.
Have you ever looked at your car from underneath? It would be a good idea to become familiar with where things are under your car. I'm not sure about a MX-3, but my FC3S RX-7 has the appropriate hangar locations for dual exhaust. I believe that you should get your car up on 4 jack stands (not just a jack, that would be VERY stupid and dangerous). Don't try to take the easy way out and use ramps either. It only takes a nudge to make a car roll back down them. Once it is safely supported by 4 jack stands in the proper locations (consult your owners manual or a good MX-3 Forum for details), slide under the back and follow where the exhaust pipe goes (a cold engine is a good idea for this, to prevent burns). Then look at the opposite side for a mirror-image of what the exhaust pipe is attached to. If it is a mirror image like it is on my RX-7, it should be pretty easy to do duals. The plus to dual exhaust is less backpressure if done correctly, but it means adding some weight to the car. Usually, it's less than 30lbs more, depending on where the Y-pipe will be and how the exhaust system is routed in general. I'd still recommend asking your fellow MX-3 owners though, since they would know more than I would about your specific application.
