It is not legal for installation or use in California on any pollution controlled motor vehicle. It's use is prohibited in any motor vehicle that is subject to emissions inspection or control. This product is sold only for racing, competition, track, hobby, or other off-road use. Installing devices or software that trick, disable, or modify emissions controls and monitors on a pollution-controlled road vehicle is also illegal. Removing, disabling, or altering emissions equipment on a pollution-controlled road vehicle is illegal. This product is intended only for racing vehicles that may never be used, or registered or licensed for use, upon a public highway. Our Epic Motorsports Race software is strongly encouraged to meet all of your tuning goals.
#BMW E46 HEADERS MODS#
Race software that is specific to your mods is strongly advised to better adapt your car to a racing environment, keep the fault codes from appearing, optimize power gains, and improve general drivability. Although we have heard of cases where no check engine light appeared, these Racing downpipes are not designed to meet emissions testing and regulations. Notice of Fault Codes/Check Engine Light - Using any Racing downpipe could result in a check engine light and fault codes, even with sport cats. These cats use a metallic substrate that is rated for higher temps yet is open enough to improve power and torque while still catalyzing the exhaust gases. The factory catalytic converters are made from a ceramic material that is very good at scrubbing pollutants but may break down and fail at the higher sustained temperatures commonly seen at the race track. All factory O2 ports are included for factory or wideband O2 sensors. AFe E46 M3 racing cats have been dyno'd at 15hp and 14ft-lbs gains! aFe metallic cats are constructed with 3" 304 stainless steel tubing, 400 cell metallic catalytic converters, TIG welding, and CNC-machined thick flanges for long life, easier installation, and durability.