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BMW G20 M340i xDrive B58 3.0L

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Your Vehicle BMW G20 M340i xDrive B58 3.0L
Your Vehicle BMW G20 M340i xDrive B58 3.0L
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BMW G20 M340i xDrive B58 3.0L Rear Bumper Diffusers

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Turner Motorsport Carbon Fiber Diffuser - G20 M340i / xDrive

ES#4351917 - 013748LA01 - Turner Motorsport Carbon Fiber Diffuser - G20 M340i / xDrive - Transform the rear end of your M340 with this Beautiful Carbon Fiber Diffuser! Custom designed to accentuate the body lines. - Turner Motorsport - BMW

Transform the rear end of your M340 with this Beautiful Carbon Fiber Diffuser! Custom designed to accentuate the body lines. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Does not fit factory exhaust tips
For Pre-LCI vehicles only (production date up to 07/2022)

Brand:
Turner Motorsport - Corporate Logo
ES#:
4351917
Mfg#:
013748LA01
In Stock
ON SALE! SAVE 10%
$822.99

This product was last offered at the strikethrough price on
06-13-2026

$740.69 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

G20/G22 M340/M440 Performance Valved Cat Back-Exhaust & Carbon Fiber Intake System

ES#4876124 - 024779LAEIEBKT - G20/G22 M340/M440 Performance Valved Cat Back-Exhaust & Carbon Fiber Intake System - Transform the power and sound of your M340i! - Enthusiast Bundles - BMW

Transform the power and sound of your M340i! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4876124
Mfg#:
024779LAEIEBKT
Ships on Aug 3, 2026
Auto Notify
ON SALE! SAVE 21%
$2596.99

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

$2049.99 USD
This product is lifetime replacement eligible Lifetime Replacement

G20 M340i/xDrive Turner Motorsport Gloss Black Diffuser

ES#4352130 - 008653LA01 - G20 M340i/xDrive Turner Motorsport Gloss Black Diffuser - Transform the rear end of your M340 with this Beautiful Gloss Black Diffuser! Custom designed to accentuate the body lines. - Turner Motorsport - BMW

Transform the rear end of your M340 with this Beautiful Gloss Black Diffuser! Custom designed to accentuate the body lines. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Does not fit factory exhaust tips
For Pre-LCI vehicles only (production date up to 07/2022)

Brand:
Turner Motorsport - Corporate Logo
ES#:
4352130
Mfg#:
008653LA01
In Stock
ON SALE! SAVE 15%
$537.99

This product was last offered at the strikethrough price on
06-13-2026

$457.29 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

G20 M340i Performance Valved Cat-Back Exhaust & Gloss Black Diffuser

ES#4876615 - 024779LAEBKT - G20 M340i Performance Valved Cat-Back Exhaust & Gloss Black Diffuser - Transform the power, sound, and aesthetics of your M340i! - Enthusiast Bundles - BMW

Transform the power, sound, and aesthetics of your M340i! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4876615
Mfg#:
024779LAEBKT
Ships on Aug 3, 2026
Auto Notify
ON SALE! SAVE 18%
$2199.94

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

$1799.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Dry Carbon Performante Rear Diffuser - G20 M340I PRE-LCI

ES#4714704 - ATK-BM-0345 - Dry Carbon Performante Rear Diffuser - G20 M340I PRE-LCI - Give your car a more aggressive look with this dry carbon rear diffuser! Estimated 4-6 week production time - MADE TO ORDER - AUTOTECKNIC - BMW

Give your car a more aggressive look with this dry carbon rear diffuser! Estimated 4-6 week production time - MADE TO ORDER affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Pre-LCI And Aftermarket Exhaust Only
For Pre-LCI vehicles only (production date up to 07/2022)

Brand:
AUTOTECKNIC - Corporate Logo
ES#:
4714704
Mfg#:
ATK-BM-0345
Ships in 7 Business Days
$695.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Rear Diffuser

ES#5480713 - A14A70-1302 - Carbon Fiber Rear Diffuser - Upgrade the appearance of your BMW's rear bumper with a sport carbon fiber diffuser - ADRO INC. - BMW

Upgrade the appearance of your BMW's rear bumper with a sport carbon fiber diffuser affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For 2023+ LCI models

Brand:
ADRO INC. - Corporate Logo
ES#:
5480713
Mfg#:
A14A70-1302
Ships on Jul 20, 2026
$1355.00 USD

M Performance Style Glossy Black Diffuser - G20 M340

ES#4487344 - G20PDIFF340GB - M Performance Style Glossy Black Diffuser - G20 M340 - M Performance inspired glossy black plastic diffuser for G20 M-Sport. Direct Bolt on, no modification required. - Suvneer - BMW

M Performance inspired glossy black plastic diffuser for G20 M-Sport. Direct Bolt on, no modification required. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For M Sport Bumpers only
For Pre-LCI vehicles only (production date up to 07/2022)

Brand:
Suvneer - Corporate Logo
ES#:
4487344
Mfg#:
G20PDIFF340GB
Ships in 5 Business Days
$250.99 USD
This product is lifetime replacement eligible Lifetime Replacement

M-Sport Rear Diffuser Replacement - M340i incl. xDrive

Direct replacement rear diffuser for M340i! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Pre-LCI vehicles only (production date up to 07/2022)

Brand:
Suvneer - Corporate Logo
ES#:
4490493
Mfg#:
G20MTDIFF340
Back Ordered
$150.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Spec-D M Sport Black ABS Performance Style Rear Diffuser - 2019-2020 BMW 3 Series G20

ES#4661097 - LFRDG2019GBMP-BN - Spec-D M Sport Black ABS Performance Style Rear Diffuser - 2019-2020 BMW 3 Series G20 - M Performance style diffuser - Spec-D Tuning - BMW

M Performance style diffuser affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Pre-LCI vehicles only (production date up to 07/2022)

Brand:
Spec-D Tuning - Corporate Logo
ES#:
4661097
Mfg#:
LFRDG2019GBMP-BN
Ships in 7 Business Days
$152.99

This product was last offered at the strikethrough price on
02-09-2026

$80.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Dry Carbon Extended-Fin Competition Rear Diffuser - G20 3-SERIES

ES#4715582 - ATK-BM-0353 - Dry Carbon Extended-Fin Competition Rear Diffuser - G20 3-SERIES - Carbon diffusor for M-Performance rear valance on your 3-Series - AUTOTECKNIC - BMW

Carbon diffusor for M-Performance rear valance on your 3-Series affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Requires M-Performance Rear Valence
For Pre-LCI vehicles only (production date up to 07/2022)

Brand:
AUTOTECKNIC - Corporate Logo
ES#:
4715582
Mfg#:
ATK-BM-0353
Ships in 7 Business Days
$500.00 USD
This product is lifetime replacement eligible Lifetime Replacement

G20 3-Series M-Sport Carbon Rear Diffuser

The perfect addition to the stock M Sport rear bumper. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Pre-LCI vehicles only (production date up to 07/2022)

Brand:
3D Design - Corporate Logo
ES#:
4017300
Mfg#:
3108-32011
Ships in 3 Business Days
$2295.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbon Rear Diffuser

Make your G20's rear end look even more aggressive! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Pre-LCI vehicles only (production date up to 07/2022)

Brand:
3D Design - Corporate Logo
ES#:
4446162
Mfg#:
3108-32021
Ships in 3 Business Days
$2295.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

M Performance Style Matte Black Diffuser

Designed to resemble the M-Performance line! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Pre-LCI vehicles only (production date up to 07/2022)

Brand:
Suvneer - Corporate Logo
ES#:
4490494
Mfg#:
G20PDIFF340-MB
Ships in 5 Business Days
$125.00 USD
This product is lifetime replacement eligible Lifetime Replacement

BMW M Performance Rear Diffuser - Carbon Fiber

100% Pure Motorsport Character! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Pre-LCI vehicles only (production date up to 07/2022)

Brand:
Genuine BMW M Performance - Corporate Logo
ES#:
4191016
Mfg#:
51192459740
Ships in 5 Business Days
4% off MSRP

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

$1450.00

This product was last offered at the strikethrough price on
06-26-2026

$1397.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

G20 M340 ABS Diffuser & ABS Rear Window Spoiler

ES#4751489 - 008653LA01EBKT - G20 M340 ABS Diffuser & ABS Rear Window Spoiler - Gloss Black ABS Styling package includes both the rear diffuser as well as the complimentary gloss black rear window spoiler. A full vehicle facelift! - Enthusiast Bundles - BMW

Gloss Black ABS Styling package includes both the rear diffuser as well as the complimentary gloss black rear window spoiler. A full vehicle facelift! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Pre-LCI vehicles only (production date up to 07/2022)

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751489
Mfg#:
008653LA01EBKT
Ships on Oct 29, 2026
ON SALE! SAVE 35%
$709.65

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

$458.06 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

G20 M340 Carbon Diffuser, Carbon Fiber Front Lip & Carbon High Kick Spoiler

ES#4751124 - 013748LA01EBKT - G20 M340 Carbon Diffuser, Carbon Fiber Front Lip & Carbon High Kick Spoiler - Transform the rear end of your M340 with this Beautiful Carbon Fiber Diffuser and matching High Kick Trunk Spoiler! Dont miss out on this Enthusiast Bundle deal to receive the carbon trunk spoiler. - Enthusiast Bundles - BMW

Transform the rear end of your M340 with this Beautiful Carbon Fiber Diffuser and matching High Kick Trunk Spoiler! Dont miss out on this Enthusiast Bundle deal to receive the carbon trunk spoiler. Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Pre-LCI vehicles only (production date up to 07/2022)

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751124
Mfg#:
013748LA01EBKT
Ships on Nov 27, 2026
$2118.97 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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