BMW Catback Exhaust Systems for MINI

Bring out the full power and sound of your supercharged W11 engine with the ECS Tuning cat-back exhaust. Engineered for precision fitment on all R52 and R53 Cooper S models, this system blends lightweight construction, durable materials, and a sound profile that evolves with your driving.

During daily driving, the system produces a smooth, deep tone. Push harder, and it rewards with crisp pops and burbles that perfectly suit the MINI’s playful character.

In-House Engineered:

Developed In-House – Designed, tested, and inspected at our Wadsworth, Ohio facility using FARO ARM laser scanning, SolidWorks 3D CAD modeling, and rigorous long-term validation.
2.5" T304 Stainless Steel Tubing – CNC mandrel-bent with a brushed finish and 1.25mm wall thickness for maximum strength, flow, and corrosion resistance.
Straight-Through Turbo-Style Muffler – In-house engineered with a perforated core and stainless steel wool packing. Aggressive sound under throttle, refined tones at cruise.
Adjustable Dual 3.5" Tips – 10mm of vertical adjustment for a perfect rear valance fit.
TIG-Welded & Back-Purged – Meticulously assembled for long-term durability and an art-like finish.
Installation & Fitment Features

Factory-Style Mounting – Fabricated sheet metal brackets for strength and OE-like reliability.
Slip Joints – Allow maximum adjustability for perfect fitment on every car.
T304 Stainless Barbed Hangers – Corrosion-resistant and designed to last.
Optimized for Ground Clearance – Perfect for lowered or track-focused builds.
Resonated & Non-Resonated Sections – Choose your preferred balance of tone and volume.
Fits Early & Late Models – Includes brackets for both ’02–’04 and ’05–’06 production years.
Convertible Compatible – Designed with clearance for the R52 rear brace.
Performance Gains & Weight Savings

This system is not only stronger and better-sounding than stock, it’s also lighter:

OEM Exhaust: 41.5 lbs
ECS Exhaust (Resonated): 30 lbs
ECS Exhaust (Non-Resonated): 27.5 lbs
Key Design Features

Single muffler, dual center-exit design
2.5" / 63.5mm stainless tubing throughout
Turbo-style straight-through muffler (2.5" in / 2.5" out)
Fabricated sheet metal mounting brackets
Stainless Accuseal clamps included
All required hardware included
Installation & Support:

Installing your ECS cat-back is straightforward, simply unbolt the factory unit, position the new system, and assemble.

Step-by-step instructions are available Here:
Recommended tool: Exhaust Hanger Removal Pliers (T#:379176) for easier disassembly.
More than just an exhaust, this is a performance-driven upgrade that enhances your MINI’s sound, style, and response. Lightweight, precision-built, and backed by our in-house R&D, the ECS cat-back delivers a soundtrack that adapts to your driving mood — from comfortable cruising to spirited acceleration.

Unleash your MINI’s full personality with a cat-back system that looks as good as it performs.

Lightweight and well-balanced, this exhaust delivers a deep, low-frequency tone for daily driving, while unleashing exciting pops and burbles under spirited throttle.

Engineered with precision and crafted for enthusiasts, the ECS Tuning Cat-Back Exhaust System for the MINI Cooper S and JCW delivers a true blend of performance, aesthetics, and acoustic refinement. Whether you’re carving corners or cruising the highway, this system transforms your MINI’s character while maintaining real-world usability.

From the first drive, the system delivers a distinctly refined but sporty soundtrack. In non-sport mode, it produces a deep, bass-heavy tone that’s civil around town. Switch into sport mode, and the sound comes alive with pops and burbles that add excitement without overwhelming the cabin. Highway drone is kept to a minimum.

Features and design:

Developed In-House using FARO ARM laser scanning and SolidWorks 3D CAD to ensure precision fitment and unmatched consistency.
2.5" T304 Stainless Steel Tubing: CNC mandrel bent with a brushed finish and 1.25mm wall thickness for strength, longevity, and flow.
Straight-Through "Turbo Style" Muffler: In-house engineered with a perforated core and stainless steel wool packing for aggressive sound under throttle, while maintaining refined tones at cruise.
Adjustable Exhaust Tips: Offers 10mm of vertical adjustment for perfect rear valance alignment.
Tig-Welded & Back-Purged: Each system is meticulously assembled for long-term durability and a clean, art-like finish.
Installation & Fitment Features:

Fabricated Sheet Metal Brackets: For factory-style mounting and long-term reliability.
Exhaust Hanger Locking Collars: Ensure the system stays aligned within your rear diffuser.
Slip Joints: Strategically placed to maximize adjustability for perfect fitment on every car.
T304 Fabricated Stainless Steel Barbed Hangers: Strong, corrosion-resistant, and designed to last.
Optimized for Ground Clearance: Perfect for lowered or track-oriented cars.
This cat-back is more than just an exhaust; it’s a performance-driven upgrade designed to enhance your MINI’s sound, style, and response. Lighter than the OEM system and meticulously engineered, it delivers a soundtrack that evolves with your driving mode while maintaining comfort for long-distance trips. Unleash your MINI’s full personality with a cat-back that looks as good as it performs.

Fitment:

MINI Cooper S & JCW
R56 Hatchback (2007–2013)
R57 Convertible (2009–2015)
R58 Coupe (2012–2015)
R59 Roadster (2012–2015)
Fits both N14 and N18 engine variants.
Installation and Support:

Installation is as easy as cutting, placing into position, and clamping!
Instructions are featured in the "Installation" tab above product details
Tools you might want for the job:
Exhaust hanger removal pliers - T#:379176
Exhaust pipe cutter - T#:385451
Product Development:

The ECS Tuning exhaust was designed, engineered, tested, and quality inspected by the Research and Development team in our Wadsworth, Ohio facility. ECS strives for the highest level of precision and quality through leading-edge product development technology including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, and rigorous long-term product testing.

MINI R56 Stainless Steel Cat-Back Exhaust delivers enhanced performance and an aggressive exhaust note tailored for street use. The Borla Sport system is designed as a simple slip-on upgrade with a tuned resonator and rear muffler package, offering significant improvements in power and sound without being overly loud.

Engineered specifically for turbocharged engines, this system increases flow capacity, resulting in better boost response, a broader powerband, and an impressive gain of +12hp. Additionally, it provides a weight reduction compared to the bulky stock exhaust, contributing to overall vehicle performance.

Constructed from 304 stainless steel, both inside and out, this exhaust system is built to last. Unlike other systems that may use inferior materials, Borla's 304 stainless construction ensures durability and resistance to rust and deterioration. Backed by Borla's 1,000,000-mile warranty, this exhaust system offers long-lasting quality and performance.

• Power Gain: Increases horsepower by +12hp.
• Enhanced Sound: Aggressive yet street-friendly exhaust note.
• Improved Performance: Boosts response and broadens powerband.
• Durability: Made from 304 stainless steel for longevity and rust resistance.
• Weight Savings: Lighter than the stock exhaust system.
• Warranty: Backed by a 1,000,000-mile warranty from Borla.