BMW M340i G20/G21 Exhaust Systems
38 exhaust systems listed for the BMW M340i G20/G21 (2019+), from Active Autowerke, Milltek, Scorpion and AWE.
Shop pickMilltek
BMW G20 M340i & G22 M440i - Cat-Back Quad with GT-100 Black Tips
Fits: M340i G20/G21, M440i G22/G23/G26
$3,512.81Available
Milltek
Milltek Cat-Back Exhaust - BMW G20 M340i & G22 M440i - Polished Tips - SSXBM1273
Fits: M340i G20/G21, M440i G22/G23/G26
$3,258.15Available
Milltek
Milltek Active Valve Control - BMW 2 Series / BMW 3 Series - SSXBM1275
Fits: M340i G20/G21, M440i G22/G23/G26, M240i G42
$549.98Available
Milltek
Milltek Large Bore Downpipe with High Flow Catalyst - BMW Toyota B58 - SSXTY210
Fits: M340i G20/G21, M440i G22/G23/G26, M240i G42
$1,262.60Available
Spool Performance
Spool B58 Gen 1 Exhaust Cam Fuel Lobe Mod | +40%
Fits: M340i G20/G21, M440i G22/G23/G26, M240i G42 & 6 more
$899.00Available
![Spool B58 5 Inch Stainless Steel Downpipe Upgrade [Race Downpipes]](https://cdn.shopify.com/s/files/1/0734/5084/8395/files/racespooldownpipe.jpg?v=1793145515&width=3840)
Spool Performance
Spool B58 5 Inch Stainless Steel Downpipe Upgrade [Race Downpipes]
Fits: M340i G20/G21, M440i G22/G23/G26, M240i G42 & 6 more
$349.00Available
![Spool B58 5 Inch Stainless Steel 200 CELL Euro 5 Catted Downpipe Upgrade [Race Downpipes]](https://cdn.shopify.com/s/files/1/0734/5084/8395/files/5_inch_b58_2.jpg?v=1793145501&width=3840)
Spool Performance
Spool B58 5 Inch Stainless Steel 200 CELL Euro 5 Catted Downpipe Upgrade [Race Downpipes]
Fits: M340i G20/G21, M440i G22/G23/G26, M240i G42 & 6 more
$399.99Available
Scorpion
Scorpion 80mm Midpipe for BMW M340i, M440i & xDrive
Fits: M340i G20/G21, M440i G22/G23/G26
$490.00Available
Scorpion
Scorpion Exhaust Suite for BMW M340i xDrive (G20) (OE No Tips)
Fits: M340i G20/G21
$1,161.28Available
Scorpion
Scorpion Exhaust Suite for BMW M340i xDrive (G20) (STW Polished)
Fits: M340i G20/G21
$1,415.48Available
Scorpion
Scorpion Exhaust Suite for BMW M340i xDrive (G20) (Daytona Ceramic)
Fits: M340i G20/G21
$1,883.25Available
Scorpion
Scorpion Exhaust Suite for BMW M340i xDrive (G20) (Daytona Polished)
Fits: M340i G20/G21
$1,670.35Available
Scorpion
Scorpion 5" Downpipe With High Flow Sports Catalyst For BMW B58 Equipped 2/3/4/5/7 Series
Fits: M340i G20/G21, M440i G22/G23/G26, M240i G42 & 6 more
$646.74Available
Active Autowerke
Active Autowerke G2X M340i M440i Valved Rear Axle-back Exhaust
Fits: M340i G20/G21, M440i G22/G23/G26
From$1,899.05Available
Active Autowerke
Active Autowerke G2X M340i M440i MidPipe w Active brace
Fits: M340i G20/G21, M440i G22/G23/G26
$759.05Available
Active Autowerke
Active Autowerke BMW B58 M240i 340i M340i 440i M440i X5-40i X3-40i X3-M40i X7-40i 540i 640i 740i GESI Catted Downpipe (2024 and older)
Fits: M340i G20/G21, M440i G22/G23/G26, M240i / M235i F22/F23 & 3 more
$1,424.05Available
Active Autowerke
Active Autowerke BMW B58 M240i 340i M340i 440i M440i X5-40i X3-40i X3-M40i X7-40i 540i 640i 740i Active AFlow Catted Downpipe (2024 and older)
Fits: M340i G20/G21, M440i G22/G23/G26, M240i / M235i F22/F23 & 3 more
$1,139.05Available
Active Autowerke
Active Autowerke BMW B58N M340i M440i X3M50 GESI Catted Downpipe (2025 and newer)
Fits: M340i G20/G21, M440i G22/G23/G26
$2,374.05Available
Active Autowerke
Active Autowerke BMW B58N M340i M440i X3M50 AFlow Catted Downpipe (2025 and newer)
Fits: M340i G20/G21, M440i G22/G23/G26
$1,899.05Available
Active Autowerke
Active Autowerke M340i/M440i Rear Exhaust Aflow Downpipe and Midpipe Bundle 2025+
Fits: M340i G20/G21, M440i G22/G23/G26
From$3,645.72Available
Active Autowerke
Active Autowerke M340i/M440i Rear Exhaust Aflow Downpipe and Midpipe Bundle 2024 and Older
Fits: M340i G20/G21, M440i G22/G23/G26
From$3,037.72Available
Active Autowerke
Active Autowerke BMW G2X G4X B58 M340i M440i GESI Catted Downpipe (2024 and older)
Fits: M340i G20/G21, M440i G22/G23/G26, M240i G42 & 3 more
$1,424.05Available
Active Autowerke
Active Autowerke M340i/M440i Rear Exhaust and Midpipe Bundle bundle
Fits: M340i G20/G21, M440i G22/G23/G26
From$2,259.39Available
Active Autowerke
Active Autowerke M340i/M440i AFlow Downpipe Midpipe Bundle
Fits: M340i G20/G21, M440i G22/G23/G26
$1,613.38Available
More for the M340i G20/G21
- M340i G20/G21 engine & fuel upgrades64
- M340i G20/G21 coilovers & suspension42
- M340i G20/G21 intakes33
- M340i G20/G21 turbo & boost parts18
- M340i G20/G21 brake pads & rotors16
- M340i G20/G21 intercoolers & manifolds15
- M340i G20/G21 cooling upgrades14
- M340i G20/G21 maintenance parts12
Buying guides
Every part here is listed for the BMW M340i G20/G21. Check the product description for exact years, body style and drivetrain, or call or text 945-954-1142 with your VIN and we'll confirm fitment before it ships. Looking for other cars? See all exhaust.