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SSN Performance

B46 Downpipe Upgrade

$335.99 $274.99 Save $61.00

SKU: 10302046

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The VRSF B46 Downpipe Upgrade is a performance exhaust component designed for BMW G and F chassis vehicles equipped with the B46 engine. This upgraded downpipe is crafted from 304-grade stainless steel, offering increased power, faster spool, and a more aggressive exhaust note.
Show original supplier description
The VRSF B46 Downpipe Upgrade is a performance exhaust component meticulously crafted for BMW G and F chassis vehicles utilizing the B46 engine. Constructed by hand from tig-welded, 304-grade stainless steel, this downpipe features smooth radius bends designed to minimize turbulence and maximize exhaust flow. It is built to seamlessly integrate with both the stock cat-back exhaust system and all aftermarket exhausts, ensuring a versatile fit. The product comes with a VRSF Lifetime Warranty and a satisfaction guarantee. This downpipe is specifically designed to fit vehicles equipped with the B46 engine. It is compatible with a wide range of BMW models from 2016-2020, including the F20 120i & 125i, F22 220i & 230i, F30/F31/F32/F33 320i, 330e, 330i, F36 420i, 430i, 730i & 740e, G30 530i, and 2020+ G20 320i and 330i models, all with xDrive options. It fits both RHD and LHD configurations without requiring modification. Note that this downpipe is not compatible with cars equipped with an OPF (Otto Particulate Filter).
Vehicle Symptoms
  • Check engine light for catalytic converter efficiency
  • Reduced power and throttle response
  • Turbo lag and slower spool
  • Exhaust smell or rattling from cat failure
  • Poor fuel economy due to restricted exhaust
Diagnostic Codes
  • P0420 – Cat Sys Efficiency Below Threshold (B1)
Relevant Conversations
  • P0420 on BMW B46 what downpipe fits
  • B46 downpipe vs catless
  • VRSF B46 downpipe install time
  • SSN Performance downpipe review
  • B46 downpipe O2 sensor spacer
  • BMW B46 turbo lag fix downpipe
  • B46 downpipe with stock exhaust
  • Catted vs catless downpipe B46
  • B46 downpipe check engine light fix
  • P0420 B46 downpipe replacement

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

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Specifications

BrandSSN Performance
Part Number10302046
CategoryExhaust
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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