Wagner Tuning Catted (Sports) Downpipe Kit for BMW F2X M135i M235i F3X 335i 435i & F87 M2 (Non Comp)
Product Description
The Wagner Tuning N55 Catted Downpipe Kit is a high-flow exhaust upgrade engineered specifically for early-build BMW F-Series N55 models produced up to June 2013.
Designed to replace the restrictive OEM catalytic converter, this downpipe uses a motorsport-grade sports catalyst to improve exhaust flow, reduce backpressure and enhance turbo efficiency — all while maintaining a more refined, OEM-friendly character compared to a decat.
Perfect for Stage 1 and Stage 2 tuned cars, the Wagner catted downpipe offers noticeable gains in throttle response, spool time and mid-range torque for off road track/motorsport use.
Key Features
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High-flow sports catalyst for improved exhaust velocity
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Reduced turbo spool time and enhanced throttle response
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Lower backpressure allows the turbo to operate more efficiently
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TIG-welded stainless-steel construction for durability
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OEM mounting points retained for clean, direct-fit installation
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Supports Stage 1 and Stage 2 tuning levels
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More refined sound compared with a fully catless system
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Designed for early N55 F-Series vehicles (pre-07/2013 fitment)
Compatibility
BMW F-Series N55 (Build date – up to 06/2013)
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F20 / F21 – 1 Series
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M135i (early N55)
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F30 / F31 / F34 – 3 Series
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335i (pre-07/2013 N55)
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F32 / F33 / F36 – 4 Series
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Early N55 applications only (rare)
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For vehicles built from July 2013 onwards, use the 07/2013+ version of this downpipe.
Ideal For
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Stage 1 or Stage 2 tuned N55 engines
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Drivers wanting improved turbo response without going fully catless
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Track/motorsport off road builds requiring better exhaust flow and mid-range power
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Cars suffering from backpressure limitations with OEM hardware
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Owners wanting a more refined and emissions-friendlier upgrade than a decat
Why Choose the Wagner N55 Catted Downpipe (–06/2013)
The factory downpipe fitted to early F-Series N55 models restricts flow and increases turbo backpressure, hurting performance once boost levels are raised.
Wagner’s sports-catted design solves this by offering far better flow characteristics while keeping noise, emissions and overall drivability closer to OEM.
Benefits include:
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Faster spool and sharper throttle response
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Stronger mid-range power
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Lower EGTs and reduced turbo strain
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High-quality stainless construction built to last
With precise fitment and proven performance, this is the ideal upgrade for early N55 owners seeking reliable gains without the compromise of a decat.
Installing / Notes
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Direct-fit for pre-07/2013 N55 vehicles
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ECU tune recommended for best results and to avoid CEL warnings
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Professional installation advised
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Not suitable for OPF/GPF-equipped models
Shipping & Delivery
Dispatch Times
Most stocked items dispatch within 1–2 business days. Some products may have longer lead times due to special ordering, availability, or build times. If your order contains multiple items, they may be shipped together once all items are ready unless otherwise agreed.
UK & International Shipping
We ship worldwide. Transit times vary depending on destination and courier. Tracking details are provided once your order is dispatched.
Import Duties & International Orders
International customers are responsible for all import duties, taxes, and clearance fees. These are not included in our prices and are outside of our control. Refusal or non-payment of import charges may result in return shipping, handling fees, and customs charges being deducted from any refund.
Damaged Shipments
If your parcel arrives visibly damaged, please refuse delivery or note the damage with the courier. If damage is discovered after opening, contact us immediately with photos. Do not install damaged items, as installation voids courier claims and return eligibility.
Returns
Returns must be authorised before sending anything back. Returns must be requested within 14 days of delivery and returned within 14 days of approval, in unused/uninstalled condition and in original packaging. Some items, including special-order, built-to-order, used, installed, or modified parts, are non-returnable.
Full details are available in our Shipping Policy and Returns & Refund Policy.
Warranty & Disclaimer
Warranty
Most products include a manufacturer’s warranty covering manufacturing defects only. Warranties do not cover wear and tear, improper installation, misuse or neglect, track use, competition or racing environments, labour costs, vehicle damage, downtime, or consequential loss. Warranty outcomes are determined by the manufacturer, not Clubsport Garage. Items must be returned for inspection at the customer’s cost unless agreed otherwise.
Fitment & Installation
Many products are aftermarket components and may require professional installation or minor adjustment. Perfect OEM-level fitment cannot be guaranteed. Professional installation by an experienced workshop is strongly recommended. Installed or used items cannot be returned.
Motorsport Use Disclaimer
Some products are intended for off-road, track, or motorsport use only and may not be legal for road use, for example non-TÜV/DOT-approved parts. It is the customer’s responsibility to ensure compliance with local laws, insurance requirements, and vehicle regulations. By purchasing and installing aftermarket parts, you accept all responsibility for ensuring compatibility, legal compliance, proper installation, and any resulting wear, damage, or failure.
Product Images & Descriptions
Product photos are illustrative and may differ slightly from the item supplied. If specific details are important, please contact us before purchasing.
Full details are available in our Terms of Service and related policy pages.
