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Exhaust› Exhaust Pipes, Systems and Components

Supersprint

Cat-Back Exhaust System

Name: Cat-Back Exhaust System
Brand: Supersprint
SKU: 833311

$1,350.00

SKU: 833311

Free Shipping over $200

$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Overview

It is constructed from 100% stainless steel and includes a threaded bung for an oxygen sensor.

This kit is specifically for the BMW U11 X1 M 35i xDrive with the B48 engine, producing up to 300 Hp. It is compatible with models equipped with an OPF and is available on demand.

Show original supplier description

The Supersprint turbo downpipe kit offers an upgrade for the BMW U11 X1 M 35i xDrive, replacing the stock catalytic converter and deleting the OPF (Otto particulate filter). It comes equipped with a threaded bung, ready to accommodate your oxygen sensor. Engineered for the B48 engine in the BMW U11 X1 M 35i xDrive, this downpipe is designed to maximize performance for models producing up to 300 Hp. It specifically targets vehicles equipped with an OPF, providing a direct replacement for the factory catalytic converter. The kit is handcrafted in Italy, reflecting Supersprint's commitment to quality and performance. This turbo downpipe is available on demand. Please note that while it replaces the catalytic converter and deletes the OPF, it is crucial to ensure compatibility with your specific vehicle's configuration, particularly regarding OPF presence.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

Brand	Supersprint
Part Number	833311
Category	Exhaust

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

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