Name: Wagner Tuning BMW F-Series N55 Catless Downpipe Kit -6/13
Brand: Wagner Tuning
SKU: 500001014
Price: 450.00 GBP
Availability: InStock

Product Description

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

By removing the factory catalytic converter, this downpipe eliminates one of the main restrictions in the N55 exhaust system, helping maximise exhaust flow, reduce backpressure and improve turbocharger response.

Built from TIG-welded stainless steel, the Wagner catless downpipe is designed for long-term durability and direct bolt-on fitment using OEM mounting points. It is especially suited to Stage 2, hybrid turbo and track-focused N55 builds where maximum exhaust flow and response are the priority.

This upgrade delivers quicker turbo spool, stronger mid-range performance, sharper throttle response and a more aggressive exhaust tone, making it a strong option for early N55 owners looking to unlock more performance from their setup.

Further information below.

Key Features

Wagner Tuning N55 Catless Downpipe Kit
Designed for early BMW F-Series N55 models
Suitable for vehicles produced up to 06/2013
Fully catless design
Removes the restrictive factory catalytic converter
Maximises exhaust flow
Improves exhaust gas velocity
Significantly reduces turbo spool time
Lowers backpressure
Improves mid-range torque
Sharper throttle response
Increased turbo sound
More aggressive exhaust tone
Helps reduce EGTs under high load
TIG-welded stainless-steel construction
Long-term durability
Direct bolt-on installation
Uses OEM mounting points
Supports Stage 2 builds
Supports hybrid turbo builds
Suitable for high-output N55 applications
Ideal for track use
Ideal for off-road performance applications
Designed for pre-07/2013 N55 fitment
ECU tuning required to prevent CEL warnings and optimise performance
Off-road / track use only
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 fitment only
BMW F33 435i N55 early fitment only
BMW F36 435i N55 early fitment only
Designed for early BMW F-Series N55 models with the pre-07/2013 downpipe configuration.
Use the 07/2013+ version for later LCI or later N55 models.
Please confirm exact vehicle model, engine, build date, downpipe configuration and intended use before ordering.

What's Included

Wagner Tuning N55 Catless Downpipe Kit
Catless stainless-steel downpipe
Direct-fit mounting provisions
Installation components supplied with the kit where applicable
Catalytic converter, 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 Catless Downpipe Kit do?

It replaces the factory catalytic converter section with a fully catless downpipe, improving exhaust flow, reducing backpressure and helping the turbo spool faster.

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 07/2013+ models require the later version of this downpipe.

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 models with the early downpipe configuration.

Is this downpipe catless?

Yes. It is a fully catless design.

Will it improve turbo response?

Yes. By reducing exhaust restriction and backpressure, it is designed to significantly reduce turbo spool time and sharpen throttle response.

Can it improve mid-range torque?

Yes. The supplied information states that lower backpressure helps improve mid-range torque.

Will it change the exhaust sound?

Yes. It delivers a more aggressive exhaust tone with increased turbo sound.

Is it suitable for Stage 2 tuning?

Yes. It is ideal for Stage 2 and high-output N55 builds.

Is it suitable for hybrid turbo setups?

Yes. It supports hybrid turbo builds where maximum exhaust flow is required.

Is this road legal?

No. The supplied information states that it is for off-road / track use only.

Will ECU tuning be required?

Yes. ECU tuning is required to prevent CEL warnings and optimise performance.

Is professional installation recommended?

Yes. Professional installation is strongly recommended.

Does this fit OPF / GPF-equipped models?

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

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 or track 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.