The brand new SD Performance Decat Downpipe is finally here for BMW 135i, 235i, and M2 models.

Crafted from ultra-durable T304 stainless steel, this downpipe delivers outstanding performance gains. With improved exhaust flow over the stock system, it significantly reduces backpressure—unlocking more power and torque when tuned.

In collaboration with the team at Maxd-Out, our extensive testing showed gains of up to 20BHP simply by fitting this downpipe.

The SD Performance Decat Downpipe features a 4-inch diameter tapering to 3-inch, making it compatible with both the OEM exhaust and most aftermarket systems that retain the 3-inch connection.

As with all SD Performance exhaust components, this downpipe is a direct fit, requiring minimal tools for installation. We also offer professional fitting at Pumaspeed HQ in Wakefield, West Yorkshire.

Why pay premium prices? SD Performance exhausts are among the best in the market—without the inflated price tag. We’re so confident in our products, we offer a lifetime, unlimited mileage warranty for the original purchaser.

Vehicle Fitment:

• BMW M135i F20/F21 (07/2013–2016)

• BMW M235i F22/F23 (2014–2016)

• BMW M2 F87 (2015–2018)

• BMW 335i F30/F31 (07/2013–2019)

• BMW 435i F32/F33 (07/2013–2019)