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BMW G20 M340i B58 3.0L

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BMW G20 M340i B58 3.0L Exhaust Parts & Accessories

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Downpipe / Catalytic Converter Installation Kit

ES#4780568 - 18328612537KT4 - Downpipe / Catalytic Converter Installation Kit - Everything you need to install a new downpipe/catalytic converter. - Genuine BMW - BMW

Everything you need to install a new downpipe/catalytic converter.

Brand:
Genuine BMW - Corporate Logo
ES#:
4780568
Mfg#:
18328612537KT4
In Stock
$110.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Resonated Touring Edition Exhaust - Chrome Silver Tips

ES#4147585 - 3015-42150 - Resonated Touring Edition Exhaust - Chrome Silver Tips - An exhaust where performance, sound and drivability come together in harmony - AWE - BMW

An exhaust where performance, sound and drivability come together in harmony 2X Entries Into Our F80 M3 Sweepstakes
Resonated version is suggested for stock downpipe cars.

Brand:
AWE - Corporate Logo
ES#:
4147585
Mfg#:
3015-42150
Ships on Oct 30, 2026
5% off MSRP

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

$3026.99

This product was last offered at the strikethrough price on
10-09-2026

$2875.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Resonated Touring Edition Exhaust - Diamond Black Tips

ES#4147586 - 3015-43158 - Resonated Touring Edition Exhaust - Diamond Black Tips - An exhaust where performance, sound and drivability come together in harmony - AWE - BMW

An exhaust where performance, sound and drivability come together in harmony 2X Entries Into Our F80 M3 Sweepstakes
Resonated version is suggested for stock downpipe cars.

Brand:
AWE - Corporate Logo
ES#:
4147586
Mfg#:
3015-43158
Ships on Oct 30, 2026
5% off MSRP

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

$3026.99

This product was last offered at the strikethrough price on
10-09-2026

$2875.00 USD
This product is lifetime replacement eligible Lifetime Replacement

M Performance Muffler

ES#4056283 - 18302464492 - M Performance Muffler - Genuine BMW M Performance - BMW

Brand:
Genuine BMW M Performance - Corporate Logo
ES#:
4056283
Mfg#:
18302464492
Ships in 1-2 days
2% off MSRP

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

$2830.00

This product was last offered at the strikethrough price on
10-09-2026

$2769.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Cat Back Exhaust System

ES#4759473 - SSXBM127 - Performance Cat Back Exhaust System - Enhance the sound of your BMW's exhaust with this exhaust system from Milltek Sport - Milltek Sport - BMW

Enhance the sound of your BMW's exhaust with this exhaust system from Milltek Sport

Brand:
Milltek Sport - Corporate Logo
ES#:
4759473
Mfg#:
SSXBM127
Ships on Oct 29, 2026
Starting at $2757.99 USD
Customize

MAD Performance 4.5" Catted Downpipe - B58

Less restriction, faster turbo spool, improved sound!

Brand:
MAD - Corporate Logo
ES#:
4643086
Mfg#:
MAD-3056
Ships in 6 Business Days
$650.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Non-Resonated Touring Edition Exhaust - Chrome Silver Tips

ES#4147582 - 3015-42148 - Non-Resonated Touring Edition Exhaust - Chrome Silver Tips - An exhaust where performance, sound and drivability come together in harmony - AWE - BMW

An exhaust where performance, sound and drivability come together in harmony 2X Entries Into Our F80 M3 Sweepstakes
Non-resonated version is suggested for aftermarket downpipe cars.

Brand:
AWE - Corporate Logo
ES#:
4147582
Mfg#:
3015-42148
In Stock
5% off MSRP

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

$2700.00

This product was last offered at the strikethrough price on
10-09-2026

$2565.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Non-Resonated Touring Edition Exhaust - Diamond Black Tips

ES#4147583 - 3015-43156 - Non-Resonated Touring Edition Exhaust - Diamond Black Tips - An exhaust where performance, sound and drivability come together in harmony - AWE - BMW

An exhaust where performance, sound and drivability come together in harmony 2X Entries Into Our F80 M3 Sweepstakes
Non-resonated version is suggested for aftermarket downpipe cars.

Brand:
AWE - Corporate Logo
ES#:
4147583
Mfg#:
3015-43156
Ships on Oct 30, 2026
5% off MSRP

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

$2700.00

This product was last offered at the strikethrough price on
10-09-2026

$2565.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

GESI Catted Downpipe - B58N M340i/440i

ES#5435795 - 11-062G - GESI Catted Downpipe - B58N M340i/440i - EPA compliant cat with increased flow and performance! - Active Autowerke - BMW

EPA compliant cat with increased flow and performance! For Model Years 2025+ - Please call in with vin prior to purchase
For Model Years 2025+

Brand:
Active Autowerke - Corporate Logo
ES#:
5435795
Mfg#:
11-062G
Ships on Oct 26, 2026
$2374.00 USD
Free Shipping

Resonated Touring Edition Exhaust - OE Tips

ES#4147584 - 3015-11060 - Resonated Touring Edition Exhaust - OE Tips - An exhaust where performance, sound and drivability come together in harmony - AWE - BMW

An exhaust where performance, sound and drivability come together in harmony 2X Entries Into Our F80 M3 Sweepstakes
Resonated version is suggested for stock downpipe cars.

Brand:
AWE - Corporate Logo
ES#:
4147584
Mfg#:
3015-11060
Ships on Oct 30, 2026
5% off MSRP

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

$2478.99

This product was last offered at the strikethrough price on
10-09-2026

$2355.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

G20/G22 M340i/M440i Performance Valved Cat-Back Exhaust

ES#4745704 - 024779LA - G20/G22 M340i/M440i Performance Valved Cat-Back Exhaust - Enhance your G Chassis with this beautiful cat-back exhaust from Turner. Full 3.0" design to release the naturally amazing performance and sound of your B58 powered BMW! - Turner Motorsport - BMW

Enhance your G Chassis with this beautiful cat-back exhaust from Turner. Full 3.0" design to release the naturally amazing performance and sound of your B58 powered BMW! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Turner Motorsport - Corporate Logo
ES#:
4745704
Mfg#:
024779LA
In Stock
ON SALE!
Starting at $1119.99 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Non-Resonated Touring Edition Exhaust - OE Tips

ES#4147581 - 3015-11058 - Non-Resonated Touring Edition Exhaust - OE Tips - An exhaust where performance, sound and drivability come together in harmony - AWE - BMW

An exhaust where performance, sound and drivability come together in harmony 2X Entries Into Our F80 M3 Sweepstakes
Non-resonated version is suggested for aftermarket downpipe cars.

Brand:
AWE - Corporate Logo
ES#:
4147581
Mfg#:
3015-11058
In Stock
5% off MSRP

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

$2268.99

This product was last offered at the strikethrough price on
10-09-2026

$2155.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Muffler Clamp - 80mm

ES#3178430 - 18308635798 - Muffler Clamp - 80mm - Clamp found on the front muffler connecting to the downpipe - Genuine BMW - BMW

Clamp found on the front muffler connecting to the downpipe

Brand:
Genuine BMW - Corporate Logo
ES#:
3178430
Mfg#:
18308635798
In Stock
14% off MSRP

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

$47.33

This product was last offered at the strikethrough price on
10-09-2026

$40.70 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Exhaust Parts & Accessories

From stock exhaust system repairs to polished stainless steel performance exhaust, we have exhaust pipes, mufflers, resonators, and catalytic converters from the most respected suppliers in the business. Go loud, stay soft, look good with exhaust parts and systems from ECS Tuning.

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Manufacturer names and/or part numbers are used only for identification purposes.

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