Leatherface
New member
I'm wanting to modify my spyder and don't know exactly what the purposes of some items are. These are a O2 sensor and juice box. Also is there any CAI systems. Is there any tuning involved when you add such items as exhaust or air filters. And finally what mods should I do for slight performance. I plan on two brothers dual exhaust and green air filter( rather have a CAI). Thanks for all your help.