I'm not smart when it comes to stuff like ignition, and wiring...Magnaflow is a good exhaust...perfect deap sound...though on stock SOHC motors, can sounds weak at some RPMs...but be careful when placing the clamp that connects the resignator pipe to the curved peice because if its not clamped tight enough or in the right place it can leak...causing an annoying sound from the underbody...also be careful when you leave the bolt ends exposed...i had my magnaflow on and something clipped the bolt ends which loosened it and bent the end of the threads so i couldn't tighten it, causing it to leak:madfawk:...You can just get another U-bolt, but I just put my WS back on cause I liked it better...

Anyway as far as cams, underdrive pulleys, etc I would say AEM or another well-known brand...DO NOT go cheap when it comes to parts like this. It's not worth the risk...

HIH - Peace...:thumbup: