BMW N55 Downpipe For 2010-2013 E8x 135i, E9x 335i - ARM Motorsports Trackhawk 0L Turbo I4

0L Turbo I4

but it's not the whole story

• Gain up to +43whp / 48wtq

the S&B Cold Air Intake is meticulously engineered to prevent check engine lights

No Check Engine Lights: Designed to work seamlessly with stock calibration or enhanced tuning

BMW N55 Downpipe For 2010-2013 E8x 135i, E9x 335i - ARM Motorsports Trackhawk 0L Turbo I4The ARM E Series N55 Downpipe is engineered to increase power and performance for BMW vehicles equipped with the N55 engine. By optimizing exhaust flow and reducing back pressure, this upgrade allows your turbocharged engine to perform more efficiently. Upgrading the downpipe on your N55 improves turbo response, increases horsepower and torque, and enables Stage 2+ tuning. It also enhances the overall exhaust sound of your 135i or 335i, making it