I already have ford racing part cold air kit and tuning, if I replace the factory tube running from tb to filter with an aftermarket piece. Will I have to retune for this. Thanks
Actually most are about 90MM. Steeda/Ford Racing is 90mm. C&L street is 83mm. JLT is 89mm. C&L Racer is 95mm. Airraid is somewhere between 95mm and 100mm. I'm not sure on Demolet, but it looks to be around 90mm. Maybe 85mm.