Boost Logic F90 M5 Secondary Cat Delete Pipes
A smooth, mandrel bent 3” pipe to increase the flow of your exhaust system.
You may utilize them with your stock downpipes. This will allow you to retain the primary catalytic converters, or in a racing application with our catless downpipes.
They will add a deep exhaust tone at lower RPMs and a nice sound improvement under wide open throttle.
DISCLAIMER: This product is for “off-road use only”– check your local laws & regulations regarding the modification of the exhaust system by checking the vehicle code for your state. Many states are stringent on exhaust modification laws to pass SMOG.