BMW Catback Exhaust Systems for MINI

Bring out the sound and performance potential of your MINI Cooper S with the ECS Tuning Cat-Back Exhaust System. Engineered to reduce weight, improve exhaust flow, and deliver a more engaging driving experience, this system offers the perfect balance of sportiness and daily-driver usability.

From the factory, the B48 engine is quiet and restrained due to the turbocharger and stock downpipe acting as mufflers. ECS Tuning developed this system to retain the factory downpipe while replacing the remainder of the exhaust with a free-flowing, 2.5" T304 stainless steel setup, giving the car a more pronounced exhaust note, sharper response, and satisfying burbles without being overly aggressive.

This system is designed to fit both the F55 and F56 chassis and includes an extension pipe to accommodate the F55’s approximately 6-inch longer wheelbase, ensuring a precise fit on either model.

Key Features:

Drops approximately 15 lbs compared to the factory system for improved performance Delivers a sporty, refined exhaust note with added character Constructed from mandrel-bent 2.5" T304 stainless steel for strength and longevity Designed to bolt directly to the factory pipe diameter with no welding required Swivel tip design for easy adjustment and optimal fitment Includes detailed step-by-step instructions for straightforward installation Installation Notes Installation requires a single cut to the factory exhaust. ECS Tuning provides clear cutting instructions to ensure a clean and accurate modification. Once cut, the new system slides directly onto the OEM connection point for a seamless, secure fit. No custom fabrication or welding is necessary; just measure, cut, and install.

For the best installation experience, Turner recommends having an Exhaust Pipe Cutter and Hanger Remover Pliers on hand (T#: 9609813).

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.