Exhaust› Exhaust Pipes, Systems and Components

VRSF

B46 Stainless Steel Downpipe

$280.00

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 Racing Downpipe is a hand-crafted, SS304 grade stainless steel exhaust component designed to increase power, improve spool time, and deliver a more aggressive exhaust note. It features smooth radius bends for decreased turbulence and increased flow, and it fits both stock and aftermarket cat-back exhaust systems.

The downpipe comes with a lifetime warranty and a "No Hassle" satisfaction guarantee.
Show original supplier description
The VRSF Racing Downpipe is engineered to enhance the performance of your B46 BMW engine. Hand-crafted from tig-welded, 304-grade stainless steel, this downpipe features smooth radius bends designed to minimize turbulence and maximize exhaust flow. It is compatible with both the stock cat-back exhaust and aftermarket systems, offering a direct fit for various BMW models. This downpipe is specifically designed for vehicles equipped with the B46 engine. It fits both Right-Hand Drive (RHD) and Left-Hand Drive (LHD) models without requiring modifications, ensuring a straightforward installation. The construction utilizes SS304 grade stainless steel and includes a lifetime warranty, reflecting its durability and quality. It is important to note that this specific downpipe (part number 10302046) is intended for US models and will not fit vehicles equipped with an OPF (Otto Particulate Filter). For international models with a B48 engine, a different part number is required. Installation of this downpipe is expected to yield gains of 25-30 horsepower when paired with a tune.
Vehicle Symptoms
  • Reduced engine power and acceleration
  • Check Engine Light illuminated
  • Turbo lag or slow spool
  • Rattling sound from exhaust under car
  • Failed emissions test due to catalyst efficiency
Diagnostic Codes
  • P0420 – Cat Sys Efficiency Below Threshold (B1)
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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

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Specifications

BrandVRSF
Part Number10302046
CategoryExhaust
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(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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