performance

Ive got a 2000 b3000 sx. im looking to add some type of power/pickup to it not really to race or anything just something to play with. Ive looked at getting a chip for it but i dont know where the ECM is and i thought the chips were usually pretty cheap. On ebay it was 28 bucks. also looking to get dual exhaust but i dont wanna sound like a honda what kinds work with the mazda V6's without sounding stupid.

Thanks