# aFe Twisted Steel Street Series Down-Pipe 14-19 MINI Cooper S L4-2.0L (t)

Add dyno-proven power to your Mini Cooper with this Twisted Steel down-pipe which produced up to +16 horsepower and +20 lbs. x ft. torque max gains as measured on our in-house dyno. 3" to 2-3/4" mandrel-bent, 304 stainless steel tubing and high flow, 400 CPSI catalytic converter improves exhaust flow to deliver increased horsepower and torque. This direct bolt-on down-pipe requires no cutting or drilling and includes quality hardware for a hassle-free installation.Performance Gains: In house dyno testing produced gains of up to +16 horsepower and +20 lbs. x ft. torque (tested with catalytic converter).Includes 3rd O2 bung: This down pipe includes a 3rd O2 bung and plug for either a wide-band O2 gauge or auxiliary instrumentation.304 Stainless Steel: 3" - 2-3/4" mandrel-bent, 304 stainless steel tubing for maximum flow and corrosion resistance.High-Flow Catalytic Converter: This system utilizes a 400 CPSI (cell per square inch) high flow catalytic converter for maximum flow.6" Interlock Flex Pipes: This unit utilizes heavy duty 6" flex tubes with internal interlock liners.CNC Machined Flange: Quality CNC machined flange mounts directly to OE mounting locations for a leak-free sealing surface.Hassle-Free Installation: Designed to be a true bolt on system with no cutting or modifications required. Quality hardware is included for a hassle-free installation.TIG-Welded: 100% TIG-welded for race proven strength and durability.All aFe exhaust systems are engineered and manufactured in our Corona, California facility.

-   3 IN to 2-3/4 IN mandrel-bent, 304 stainless steel tubing for improved flow
-   100% TIG-Welded for Strength and Durability
-   CNC machined flange for a leak free seal
-   High flow 400 CPSI catalytic converter
-   +20 lbs. x ft. TQ & +16 HP

This Part Fits:

Year

Make

Model

Submodel

2020

BMW

228i xDrive Gran Coupe

Base

2020

BMW

M235i xDrive Gran Coupe

Base

2017-2019

BMW

X1

sDrive28i

2016-2019

BMW

X1

xDrive28i

2018-2019

BMW

X2

sDrive28i

2018-2019

BMW

X2

xDrive28i

2015-2019

Mini

Cooper

John Cooper Works

2014-2021

Mini

Cooper

S

2016-2021

Mini

Cooper Clubman

S

2017-2019

Mini

Cooper Clubman

S ALL4

2017-2021

Mini

Cooper Countryman

S

2017-2020

Mini

Cooper Countryman

S ALL4

## Details

- **Price:** 1897.14 CAD
- **Vendor:** aFe
- **Type:** Downpipes

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1897.14 CAD | In stock |

## Images

- Photo - Primary
- User 4
- Photo - Unmounted
- Photo - Unmounted
- User 3
- Photo - Unmounted
- Photo - Unmounted

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/afe-twisted-steel-street-series-down-pipe-14-19-mini-cooper-s-l4-2-0l-t)
> Updated: 2026-07-15