Active Autowerke Downpipe W/ GESI G - Sport Cat - 2016+ M240i / 340i / 440i (B58) (11-062)
SKU: 94672116972

Active Autowerke Downpipe W/ GESI G - Sport Cat - 2016+ M240i / 340i / 440i (B58) (11-062)

Sale price$640.82 Regular price$712.02
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 6 - Jul 11

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Description

Active Autowerke Downpipe W/ GESI G - Sport Cat - 2016+ M240i / 340i / 440i (B58) (11-062)Active Autowerke's downpipe for the 2016+ BMW M240i, 340i, and 440i (B58 engine) improves exhaust flow for enhanced turbo response by replacing the restrictive OEM downpipe. Utilizes 4. 5" diameter 304 stainless steel piping for increased flow and durability Includes a 4. 5" high flow GESI G Sport catalytic converter that avoids Check Engine Lights Converter is EPA registered, OBD2 compliant, and rated for 500 850 hp applications (not CARB legal)

Active Autowerke's downpipe for the 2016+ BMW M240i, 340i, and 440i (B58 engine) improves exhaust flow for enhanced turbo response by replacing the restrictive OEM downpipe.

  • Utilizes 4.5" diameter 304 stainless steel piping for increased flow and durability
  • Includes a 4.5" high flow GESI G-Sport catalytic converter that avoids Check Engine Lights
  • Converter is EPA registered, OBD2 compliant, and rated for 500-850 hp applications (not CARB legal)
  • Features stainless flex joint and tapers down to OEM 80mm exhaust outlet diameter
  • Precision fit with casted stainless steel V-Band for easy bolt-on installation (no cutting or welding)
  • Constructed from TIG welded 304 stainless steel with ultra-high flow 400 cell per square inch catalyst
  • Withstands temperatures up to 1500°F and reaches operational efficiency within 9 seconds of startup

This downpipe optimizes turbocharger spool by enabling faster exhaust gas evacuation while maintaining emissions compliance under federal EPA standards (except California). It supports forced induction setups without sacrificing engine performance or triggering emissions warnings.

Note: Not legal for use in California per state vehicle code sections 27156 and 38391. Federal law prohibits tampering with emissions control devices; this part meets EPA standards for aftermarket repair or replacement.

Part Type: Downpipe
Fitment: Vehicle Specific for 2016+ BMW M240i / 340i / 440i with B58 engine

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 94672116972

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Julie DeLeon Lopez
Natrona Heights, US
★★★★★ 5
Great look, style .
Absolutely what pic looks llke. Thick soft good for price Husband approved.Great price color was grey I got we got for fall pictures . Looks like I got at a big dept store good quality. Very casual or dress up if you like. Will buy in another color. Fit good true to size. He is 6' , 200 pounds bought and XL.
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Reviewed in the United States on October 1, 2025
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Eric Gilbert
Fort Morgan, US
★★★★★ 5
Excellent sweater I must buy very comfortable
This is an excellent pullover sweater. It's very lightweight, but it feels so good on u and does keep you warm
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Reviewed in the United States on February 6, 2026
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Hardeep
San Leandro, US
★★★★★ 5
Looks high quality!
Color: Green, Size: Medium
Looks high quality! Very rich color, thick fabric, and fits well but sleeves may be a little loose. Washed on cold & regular dry, looks fine.
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Reviewed in the United States on January 21, 2026
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SWC TX
Alexandria, US
★★★★★ 4
Good Quality wrong fit
Color: Green, Size: Medium
Great color. NICE style. Liked the pattern on the sweater. Good quality. Returned because the size was off for my husband's body.
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Reviewed in the United States on January 6, 2026
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Garrett M.
Cuba, US
★★★★★ 5
Great sweater
Color: Army Green, Size: Large
Love this, fits great and feels great
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Reviewed in the United States on February 25, 2026

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