Wagner Tuning Catted (Sports) Downpipe Kit for BMW F2X M135i M235i F3X 335i 435i & F87 M2 (Non Comp) - Clubsport Garage
Wagner Tuning Catted (Sports) Downpipe Kit for BMW F2X M135i M235i F3X 335i 435i & F87 M2 (Non Comp) - Clubsport Garage
Wagner Tuning Catted (Sports) Downpipe Kit for BMW F2X M135i M235i F3X 335i 435i & F87 M2 (Non Comp) - Clubsport Garage
Wagner Tuning Catted (Sports) Downpipe Kit for BMW F2X M135i M235i F3X 335i 435i & F87 M2 (Non Comp) - Clubsport Garage
Wagner Tuning Catted (Sports) Downpipe Kit for BMW F2X M135i M235i F3X 335i 435i & F87 M2 (Non Comp) - Clubsport Garage

Wagner Tuning Catted (Sports) Downpipe Kit for BMW F2X M135i M235i F3X 335i 435i & F87 M2 (Non Comp)

By Wagner Tuning
£815.00
Available – Dispatched within 3–5 Days
Worldwide Shipping
Official Dealer
View details

Product Description

The Wagner Tuning N55 Catted Downpipe Kit is a high-flow exhaust upgrade designed specifically for early-build BMW F-Series N55 models produced up to June 2013.

Replacing the restrictive OEM catalytic converter, this downpipe uses a motorsport-grade sports catalyst to improve exhaust flow, reduce backpressure and enhance turbo efficiency while retaining a more refined character than a fully catless setup.

Built from TIG-welded stainless steel, the Wagner catted downpipe is designed for durability, precise fitment and direct installation using OEM mounting points. It is well suited to Stage 1 and Stage 2 tuned N55 builds where improved response and mid-range performance are required.

By improving exhaust gas flow and reducing restriction, this upgrade helps deliver faster turbo spool, sharper throttle response, stronger mid-range torque and reduced turbo strain for track, motorsport and off-road performance use.

Further information below.

Key Features
  • Wagner Tuning N55 Catted Downpipe Kit
  • Designed for early BMW F-Series N55 models
  • Suitable for vehicles produced up to 06/2013
  • High-flow catted downpipe upgrade
  • Uses a motorsport-grade sports catalyst
  • Replaces the restrictive OEM catalytic converter
  • Improves exhaust flow
  • Improves exhaust gas velocity
  • Reduces backpressure
  • Enhances turbo efficiency
  • Reduces turbo spool time
  • Improves throttle response
  • Supports stronger mid-range torque
  • Helps reduce EGTs
  • Helps reduce turbo strain
  • More refined sound than a fully catless system
  • More OEM-friendly character than a decat
  • TIG-welded stainless-steel construction
  • Durable long-term design
  • Direct-fit installation
  • Uses OEM mounting points
  • Suitable for Stage 1 tuning
  • Suitable for Stage 2 tuning
  • Ideal for track and motorsport use
  • Designed for pre-07/2013 N55 fitment
  • ECU tuning recommended for best results and to avoid CEL warnings
  • Not suitable for OPF / GPF-equipped models

Vehicle Compatibility
  • BMW F20 M135i N55 early production up to 06/2013
  • BMW F21 M135i N55 early production up to 06/2013
  • BMW F30 335i N55 up to 06/2013
  • BMW F31 335i N55 up to 06/2013
  • BMW F34 335i N55 up to 06/2013
  • BMW F32 435i N55 early applications only
  • BMW F33 435i N55 early applications only
  • BMW F36 435i N55 early applications only
  • Designed for early BMW F-Series N55 models with the pre-07/2013 downpipe configuration.
  • For vehicles built from July 2013 onwards, use the 07/2013+ version of this downpipe.
  • Please confirm exact vehicle model, engine, build date, downpipe configuration and intended use before ordering.

What's Included
  • Wagner Tuning N55 Catted Downpipe Kit
  • High-flow stainless-steel catted downpipe
  • Motorsport-grade sports catalyst
  • Direct-fit mounting provisions
  • Installation components supplied with the kit where applicable
  • ECU tuning, lambda sensor spacers, OPF / GPF components, gaskets, fitting consumables and additional exhaust components are not included unless supplied separately.

FAQs

What does the Wagner Tuning N55 Catted Downpipe Kit do?

It replaces the restrictive OEM catalytic converter with a high-flow sports-catted downpipe, improving exhaust flow, reducing backpressure and supporting better turbo response.

Which engine is this downpipe designed for?

It is designed for early BMW F-Series models with the N55 engine.

Which build dates does this version fit?

This version is designed for early N55 F-Series models produced up to 06/2013.

Does this fit later N55 models?

No. The supplied information states that vehicles built from July 2013 onwards require the 07/2013+ version.

Which vehicles does it fit?

It is listed for early BMW F20/F21 M135i, F30/F31/F34 335i and early F32/F33/F36 435i N55 applications.

Is this downpipe catless?

No. This is a catted downpipe using a motorsport-grade sports catalyst.

How does it compare with a catless downpipe?

It offers improved flow and performance over the OEM catalytic converter while maintaining a more refined sound and OEM-friendly character than a fully catless system.

Will it improve turbo response?

Yes. By reducing backpressure and improving exhaust flow, it helps reduce turbo spool time and sharpen throttle response.

Can it improve mid-range torque?

Yes. The supplied information states that reduced backpressure can help deliver stronger mid-range power.

Will it change the exhaust sound?

Yes. It will enhance exhaust tone, but the supplied information describes it as more refined than a fully catless system.

Is it suitable for Stage 1 tuning?

Yes. It supports Stage 1 tuning levels.

Is it suitable for Stage 2 tuning?

Yes. It supports Stage 2 tuning levels.

Is this road legal?

The supplied information positions this product for off-road, track and motorsport use, so road legality and emissions compliance should be checked before ordering.

Will ECU tuning be required?

An ECU tune is recommended for best results and to avoid CEL warnings.

Does this fit OPF / GPF-equipped models?

No. The supplied information states that it is not suitable for OPF / GPF-equipped models.

Is professional installation recommended?

Yes. Professional installation is advised.

What should I check before ordering?

Please confirm your exact BMW model, N55 engine fitment, build date, downpipe configuration, emissions equipment and intended off-road, track or motorsport use before ordering.

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.