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Your Vehicle 2021 MINI Cooper S 3 Door B46C

2021 MINI Cooper S 3 Door B46C Performance Exhaust Parts

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ES#3660434 - 48-36322-HC - Twisted Steel Street Series Down Pipe - High Flow Catalytic Converter - 304 Stainless Steal mid pipe for your factory or aftermarket application, up to +16 horsepower and +20 lbs. x ft. - AFE - BMW MINI

304 Stainless Steal mid pipe for your factory or aftermarket application, up to +16 horsepower and +20 lbs. x ft. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AFE - Corporate Logo
ES#:
3660434
Mfg#:
48-36322-HC
Back Ordered
20% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$1661.99

This product was last offered at the strikethrough price on
06-05-2026

$1329.00 USD
Free Shipping
ES#4865887 - 053563LA02 - 10mm Exhaust Hanger Locking Collar - Achieve perfect exhaust fitment! - ECS - Audi BMW Volkswagen Mercedes Benz MINI

Achieve perfect exhaust fitment! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4865887
Mfg#:
053563LA02
In Stock
ON SALE! SAVE 10%
$15.99

This product was last offered at the strikethrough price on
05-02-2026

$14.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3143001 - HS14MCSG3T - 2.36" Cat-Back Exhaust System - Featuring 101mm dual rolled titanium tips! - Invidia - MINI

Featuring 101mm dual rolled titanium tips! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Invidia - Corporate Logo
ES#:
3143001
Mfg#:
HS14MCSG3T
Ships in 2 Business Days
$1229.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#5457438 - UVM.89MM.X2 - Universal Valved Muffler Kit - Single Inlet / Single Outlet - 3.0" (76mm) - 2 Mufflers - Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button - Valvetronic Designs - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Valvetronic Designs - Corporate Logo
ES#:
5457438
Mfg#:
UVM.89MM.X2
Ships in 1 Business Day
$599.99 USD
Free Shipping
ES#3644339 - 832014 - Rear Muffler Deletes Racing Y Pipe  - Part of the exhaust system - Supersprint - MINI

Part of the exhaust system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Supersprint - Corporate Logo
ES#:
3644339
Mfg#:
832014
Ships on Sep 9, 2026
$1170.00 USD
Free Shipping
ES#2996605 - NM.308846 - NM Eng. Downpipe-Back Exhaust System NM.308846.2 - Upgrade to NM exhuast components - NM Engineering - MINI

Upgrade to NM exhuast components affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
NM Engineering - Corporate Logo
ES#:
2996605
Mfg#:
NM.308846
Ships in 2 Business Days
$1139.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3143000 - HS14MCSG3S - 2.36" Cat-Back Exhaust System - Featuring 101mm dual rolled stainless tips! - Invidia - MINI

Featuring 101mm dual rolled stainless tips! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Invidia - Corporate Logo
ES#:
3143000
Mfg#:
HS14MCSG3S
Ships in 9 Business Days
$1114.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4305404 - 004735LA02KT - ECS UNIVERSAL Swivel Exhaust Tips - 3.5" Carbon Fiber - Pair - Carbon Fiber exhaust tips featuring swivel attachment for maximum adjustability. 2.5" Swivel Inlet / 3.5" Double Wall, Slant Cut Outlet - ECS - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Carbon Fiber exhaust tips featuring swivel attachment for maximum adjustability. 2.5" Swivel Inlet / 3.5" Double Wall, Slant Cut Outlet affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Not vehicle specific. You MUST measure prior to purchasing!

Brand:
ECS - Corporate Logo
ES#:
4305404
Mfg#:
004735LA02KT
In Stock
ON SALE!
$299.99

This product was last offered at the strikethrough price on
05-02-2026

$273.59 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3209826 - 49-36331-B - Exhaust Systems - Cat-Back - MACH Force-Xp 304 Stainless Steal Cat-Back Exhaust with Black Tips - AFE - MINI

MACH Force-Xp 304 Stainless Steal Cat-Back Exhaust with Black Tips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AFE - Corporate Logo
ES#:
3209826
Mfg#:
49-36331-B
Ships in 2 Business Days
20% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$1311.99

This product was last offered at the strikethrough price on
06-05-2026

$1049.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3998977 - 47-46306 - Direct Fit Catalytic Converter Replacement - Replaces the stock downpipe - AFE - BMW MINI

Replaces the stock downpipe affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AFE - Corporate Logo
ES#:
3998977
Mfg#:
47-46306
Back Ordered
20% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$1311.99

This product was last offered at the strikethrough price on
06-05-2026

$1049.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4659397 - MI-EXH001TBCAT - B46 High Flow Catted Downpipe - Thermal Coated Black Finish - High performance 200 Cell catalytic - Evolution Racewerks - MINI

High performance 200 Cell catalytic affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Evolution Racewerks - Corporate Logo
ES#:
4659397
Mfg#:
MI-EXH001TBCAT
Ships in 8 Business Days
$995.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3209824 - 49-36331-P - Exhaust Systems - Cat-Back - MACH Force-Xp 304 Stainless Steal Cat-Back Exhaust with Polished Tips - AFE - MINI

MACH Force-Xp 304 Stainless Steal Cat-Back Exhaust with Polished Tips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AFE - Corporate Logo
ES#:
3209824
Mfg#:
49-36331-P
Ships in 2 Business Days
20% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$1191.99

This product was last offered at the strikethrough price on
06-05-2026

$953.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4866105 - 52929 - OEM Grade Direct-Fit Catalytic Converter / Downpipe - Replaces the stock downpipe - Magnaflow - BMW MINI

Replaces the stock downpipe affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
48-state legal - not for sale or use in California

Brand:
Magnaflow - Corporate Logo
ES#:
4866105
Mfg#:
52929
Back Ordered
$943.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Exhaust Parts

Performance exhaust systems increase flows to improve throttle response and add power. Designed to reduce back pressure, our large selection of performance exhaust parts and performance exhaust systems is made from premium materials like stainless steel. Many are TIG welded and polished to make them as attractive as they are functional.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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