Milltek Sport BMW MINI Cooper S R55 R56 R57 R58 R59 Large Bore Downpipe Decat SSXM023

Milltek Sport BMW MINI Cooper S R55 R56 R57 R58 R59 Large Bore Downpipe Decat SSXM023


Availability: 1 in stock SKU: AEM1557 Product Brand:


Milltek 2nd Gen Large bore downpipe and decat – SSXM023

The Milltek SSXM023 downpipe and decat replaces and removes the restrictions in the standard system and allows the turbo to spool up quicker increasing power and throttle response.

Fits the following models of MINI

R55: 2007-xxxx Clubman: Cooper S
R56: 2007-xxxx Hatchback: Cooper S
R57: 2009-xxxx Convertible: Cooper S
R58: 2011-xxxx Coupe: Cooper S
R59: 2011-xxxx Roadster: Cooper S

Pipe Diameter 2.50-inch (63.50mm)

Please note Milltek advise that the SSXM023 downpipe is used in conjunction with a Stage 2 ECU Re-map

Exhaust Type




Specification and Components

MSM321REP: Large-bore Downpipe and Decat

 Bore Size (pipe diameter)

2.50″ (63.50mm)

Tail pipes –


Additional Information

-Remapping is recommended when fitting a hi-flow sports cat or decat pipe.

-Sports cats and decats may cause EML light to illuminate

-A remap or lambda cheater may be required to stop EML light coming on when fitting sportcats/decats

-Decat pipes are for off road use only and will not pass an MOT emissions test

-Sport cat systems will pass an MOT emissions test

Why Choose Milltek?

With over 30 years continuous experience, in developing performance exhaust. Milltek have now become a market leader in key marques.

Milltek Sport exhausts are produced in high quality type 304 aircraft grade stainless steel. This material is anti-magnetic (other manufacturers stainless steel may not be) and is less susceptible to discolouration. This quality of stainless steel is used on all pipe work and the total construction of the silencer. Mandrel bending ensures full flow bends for better gas flow and Milltek systems are increased in bore to ensure ultimate performance without the loss of mid-range torque.

Milltek Sport exhausts have a genuine performance edge, sounds that are truly awesome, styled looks that are aggressive but discrete and a feeling of true exhilaration

-Transforms performance and drive-ability

-Sharper throttle response

-Substantial weight saving over original equipment systems

-Precision, quality controlled manufacture

-Highest quality aircraft grade stainless steel

-Low pressure systems for maximum performance

-Responsibly developed and engineered


Please note: this item has been relisted as a new item. Milltek reported our previous listing to eBay for using their copyrighted stock images. As a result of this, we have had to create a new listing with our own photo. Disappointing, but we’ll keep pushing forward to get great deals for all customers.

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