[SkyIS]

what else besides intake, exhuast, supercharger, and turbo can make the car go faster? thanks

 

[SilverLex]

An incline

 

[vlad_a]

Nitros, 6spd manual, lighter weight, fuel-air ratio tuning.

 

[chromaplast]

nuclear reactor

 

[IS300GTE]

cams, throttle body, headers, dyno time.

 

[s0yb0mb]

2 things come to mind, and they don't cost you anything up front.
1) draft an 18 wheeler
2) run from the cops; you'd be amazed at what you'll be willing to do to get away.

 

[TNguyenIS300]

What about the Computer chip upgrade (Jet)?? I had seen people done on their Honda, Toyota, Madzda, Nissan,ect...... but not sure if it suitable for IS300? Now, that make me wondering??