We are now offering the our cold air/ram intake mod for those with stock intake systems and aftermarket ones. You will probably get better results with the stock air box though.
RPI Intake w/ Stock Air Box: $500 (10-15whp gain)
RPI Intake w/ Aftermarket Intake: $400 (5whp+)
Price includes free dyno session so you see what your car actually does instead of what someone says you should have.
The modifications include sprial race ducting with 3" aluminum tubes on both the driver and passenger side bumpers. Price includes installation. At this time, the mod is NOT offered as a kit. It is only available through our facility in Paramount, CA.
Also see:
True Cold/Ram Air Induction