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Milltek catted hi-flow sports cat downpipe (Milltek cat-back) for the MINI Cooper S F56

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Milltek catted hi-flow sports cat downpipe (factory cat-back) for the MINI Cooper S F56

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Milltek catless downpipe (Milltek cat-back) for the MINI Cooper S F56

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Milltek catless downpipe (factory cat-back) for the MINI Cooper S F56

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Milltek Sport Downpipes - 2014-2024 MINI Cooper S Hardtop 2 Door F56

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Brand: Milltek SportSKU / Part #: SSXM408

Regular price: $427.55
Regular price: ~~$503.00~~
Sale price: $427.55
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Milltek Sport Downpipes - 2014-2024 MINI Cooper S Hardtop 2 Door F56

Subtotal: $427.55

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Overview

These Milltek Sport parts fit the 2014-2024 MINI Cooper S Hardtop 2 Door (F56) with the 2.0 liter turbo four. These large-bore Milltek downpipes replace the restrictive factory hot side on the F56 Cooper S, with a hi-flow sports cat or a catless track pipe, each made to join either the factory or a Milltek cat-back. A Milltek hot-side part replaces the restrictive factory section with larger, smoother T304L tubing, so exhaust gas leaves the engine with less resistance. Pick a catted version to keep a catalytic converter in the system, or a catless version for a dedicated track car. Each option below says whether it joins the factory cat-back or a Milltek cat-back. The MINI Cooper S F56 parts are T304L stainless steel with mandrel-bent tubing, which keeps the pipe at full size through each bend and resists corrosion for years. They bolt in place of the factory parts with no cutting or welding.

How to Choose

Choose the Part you need. Catless Downpipe (Milltek Cat-Back) has no catalytic converter. It is for off-road and track use only and needs an ECU remap, and it connects to a Milltek cat-back. Catless Downpipe (Factory Cat-Back) has no catalytic converter. It is for off-road and track use only and needs an ECU remap, and it connects to the factory cat-back. Catted Hi-Flow Sports Cat Downpipe (Milltek Cat-Back) keeps a high-flow sports catalytic converter. Milltek recommends an ECU remap with it, and it connects to a Milltek cat-back. Catted Hi-Flow Sports Cat Downpipe (Factory Cat-Back) keeps a high-flow sports catalytic converter. Milltek recommends an ECU remap with it, and it connects to the factory cat-back.

Pair them with the Milltek cat-back for the MINI Cooper S F56 for a complete Milltek exhaust.

Features

69.85 mm (2.75 in) T304L stainless steel pipework
Mandrel-bent and made to bolt to the factory mounting points
Catted and catless options explained in How to Choose

What's Included

The Milltek parts shown for the version you choose

Specifications

Spec	Value
Brand	Milltek Sport
Part numbers (MPN)	Catless Downpipe (Milltek Cat-Back): SSXM408. Catless Downpipe (Factory Cat-Back): SSXM428. Catted Hi-Flow Sports Cat Downpipe (Milltek Cat-Back): SSXM409. Catted Hi-Flow Sports Cat Downpipe (Factory Cat-Back): SSXM429
Type	Downpipe
Material	T304L stainless steel
Pipe diameter	69.85 mm (2.75 in)
Race product	Yes, per Milltek. For off-road and track use

Fitment Notes

Fits the 2014-2024 US-market MINI Cooper S Hardtop 2 Door (F56). Not for the JCW or the 2025-on F66. The same downpipes fit the 4 Door Hatch (F55), which has its own page.
Catless downpipes remove the catalytic converter and are for off-road or track use only. Milltek lists all four as race products and recommends an ECU remap.
Catless parts remove the catalytic converter. They are sold for off-road and competition use only and are not legal on public roads in the US.

Questions about fitment? Call (310) 231-0292 or text (310) 886-3111.

Year	Make	Model	Chassis	Engine
2014-2024	MINI	Cooper S Hardtop 2 Door	F56	2.0L B46/B48 Turbo I4

Fitment

Year	Make	Model
2014–2026	Mini	Cooper S

Not sure? Text us your VIN and we’ll confirm.

Shipping & returns

Shipping: Orders ship via UPS, FedEx or USPS, from our facility near Los Angeles or directly from the manufacturer. Rates for many items are weight-based and shown at checkout. If you need it by a certain date, text us before you order.

Returns: Unused items in brand-new condition and original packaging can be returned within 30 days of the invoice date, with a 25% restocking fee unless otherwise specified. In some cases we can offer a lower fee with the balance as store credit. Shipping charges aren't refundable in either direction unless approved by AutoTalent.

Not returnable: special-order or custom items, and anything that has been installed, modified or altered.

Cancellations: free if the item is out of stock or we miss the ETA you agreed to. Other cancellations carry a 5% processing fee to cover card fees we can't recover. Special-order items can't be cancelled.

Damaged in transit? Report it to the carrier and to us within 48 hours, keep all packaging, and don't send anything back without our written approval.

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