I've had my 2001 Cl-S for about 4 or 5 months now and I wanna upgrade it a little bit. Want to start small and read into performance chips that can plug into the OBDII module. Any Suggestions on where to find a good one?

 

there are no performance chips for this platform.
it's not a turbo where you can easily change engine parameters.
Our ECU is LOCKED down. and any changes that a little tiny box with resistors in it will make, the ECU reverts back to stock in a matter of milliseconds.

so, no. there are no easy small mods.

 

Even if there was a chip, they don't do crap unless you have a decent amount of mods. Outside of turbo cars, they're never something that unlocks a good amount of power for the price.

Spend the money on a header and an intake and you'll get FAR more power for the same price.