Fabspeed Catbypass Downtubes are manufactured from T304 Stainless steel mandrel bent tubing and 321 Stainless Steel flex bellows to maximize flow and reliability. With provisions for the factory primary catalyst heat shield, along with the shielding for the secondary catalyst bypass. In addition, CNC mandrel bent Maxflo Rear Exhaust with quad tips in your choice of Satin Black or Polished Stainless Steel. BMC F1 high performance air filters and ECU tuning available soon.
Acura NSX BMC F1 Replacement Filters
Fits all Acura NSX Twin Turbo Vehicles 2017+ (Optional Exhaust Valve Simulators are electronic valve simulators which are plug and play for the factory electrical harness connector to prevent system faults caused when the valves are removed - Not required for 2017-2018 models but recommended for 2019+ models.
Direct replacement bolt-on, precision crafted catbypass pipes/ downtubes to replace 4 small, restrictive OEM Ceramic Catalytic Converters
Aggressive sports car south with prominent turbo spool
Mounting brackets for factory primary catalyst heat shielding
Precision engineered and manufactured in USA using HAAS CNC, FLOW WATERJET, and T304L Stainless Steel flex bellows
Includes all hardware and gaskets ready to install.
Provisions for the factory primary catalyst heat shield.
Shielding for the secondary catalyst bypass.
System comes with quad tips ready to install in your choice of finish.
NOTE: This product removes the factory electronic valves from the vehicle to save weight and increase exhaust flow, and as such, may cause check engine lights. Not required for 2017-2018 models but recommended for 2019+ models to eliminate possible issues.
DISCLAIMER: This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only. This product is or contains a Racing Cat Bypass Pipe, which will give you check engine lights on OBD2 cars. We suggest pairing this product with racing software to prevent fault codes and check engine lights. Racing Cat Bypass Pipes are solely intended for track and race cars as they are NOT California Air Resources Board Certified and not EPA certified. You are hereby informed and warned to check your local, state, and federals laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts.