MAD® MAD Performance 4,5″ Catted Downpipe – B58

Product Details

Upgrade to the MAD B58 downpipe to eliminate the backpressure caused by your stock catalytic converters. By upgrading to our downpipe, your turbo can now spool faster and achieve maximum power. As a bonus, your car will sound a lot nicer as well. Expect up to a 30HP increase on a tuned BMW / Toyota Supra B58 with stock turbo, even more on cars with upgraded turbo. The flex pipe Section will help reduce the stress and unwanted vibration caused by heat and engine Movement. 

Features Include:

• Compatible with right-hand drive and left-hand drive vehicles
• Smooth bends for maximum airflow without any drone
• Up to 30HP increase on the stock turbos, even more on upgraded turbos
• Lifetime warranty on defects and fitment
• Spot on fitment
• Flex section
• 200 CEL high flow cats

Not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board.