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Mastermind Racing

Mastermind Racing B58 Downpipe Upgrade for 2019 – 2023 BMW M340i, M440i, M240i, X5, X7 40i & xDrive G20 / G22 / G26 / G05 / G07

Mastermind Racing B58 Downpipe Upgrade for 2019 – 2023 BMW M340i, M440i, M240i, X5, X7 40i & xDrive G20 / G22 / G26 / G05 / G07

MMR-CLDP-B58

Regular price $229.95 USD
Regular price $249.95 USD Sale price $229.95 USD
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Authorized Distributor

PINNACLE GARAGE USA is an authorized distributor for top automotive brands, ensuring you receive genuine, high-quality products directly from the manufacturer. Shop with confidence knowing you're getting authentic, warrantied parts at the best prices

Price Match Guarantee

We are committed to offering you the best prices on the market. If you find the same product at a lower price from an authorized distributor, we’ll match it! The competitor’s price must be current, publicly advertised, and the product must be in stock. Please note that we do not price match listings from third-party marketplaces such as eBay, Amazon, or unauthorized resellers. To request a price match, simply click "Make an Offer" under the Add to Cart button and submit your request.

Shipping & Handling

Our handling time is 1-3 business days unless stated otherwise. If an item is on backorder, you will receive an email notification within 24 hours. Shipping times vary based on location and carrier.

Returns & Refunds

To be eligible for a return, the item must be in its original packaging, unused, unmodified, unpainted, the return item should be in the same condition as it was received.

It is our goal to provide 100% satisfaction and peace of mind to our customers. There is a 30-day return period from the date the item is received. Return shipping will not be provided, unless otherwise noted. We will offer refund of the item price only. This means the shipping cost of the item will not be refunded back to you and an invoice of the cost of shipping will be provided to you. Modified/Used returns, or Returns outside of the 30-day policy will not be refunded or returned to the customer unless otherwise noted.

Return packaging will NOT be provided. Please contact our support team prior to returning an item.

If you received a damaged or broken item, please contact us immediately with photos of the package and item.

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Mastermind Racing 4.5″ Race Downpipe – BMW G20 B58 M340i & xDrive

Introducing the Mastermind Racing Race Downpipe for your BMW G20 B58 M340i and xDrive variants. If you’re looking for the best performance upgrade for the money, this is it. Designed for enthusiasts seeking maximum power and sound, this downpipe delivers exceptional gains in throttle response, horsepower, and exhaust tone.

By replacing the restrictive factory catalytic converter with Mastermind's free-flowing race downpipe, back pressure is drastically reduced, resulting in faster turbo spool, improved performance, and a more aggressive exhaust note.

The Mastermind Racing downpipe features a full 4.5″ TIG-welded 304-grade stainless steel construction and a precision CNC-machined stainless steel flange for a seamless transition from the turbo to the mid-pipes. Every Mastermind Racing downpipe is handcrafted from premium SS304 stainless steel and backed by our Lifetime Warranty and No-Hassle Satisfaction Guarantee, including perfect fitment assurance.

Product Features

  • Performance-crafted, TIG-welded 4.5″ 304-grade stainless steel construction
  • Compatible with both RHD and LHD models – no modifications required
  • Smooth-radius bends for reduced turbulence and improved flow
  • Fits OEM and aftermarket cat-back exhaust systems
  • Power gains of 25–30 HP with proper tuning
  • Mastermind Racing Lifetime Warranty
  • Off-Road Use Only

Vehicle Fitment

  • 2019–2023 G20, G22 & G26 B58 BMW M340i / M440i & xDrive
  • 2019–2022 F22 B58 BMW M240i & xDrive
  • 2021–2023 G42 B58 BMW M240i & xDrive
  • 2019–2023 G05 B58 BMW X5 40i & xDrive
  • 2019–2023 G07 B58 BMW X7 40i & xDrive
  • 2019–2023 G29 B58 BMW Z4 M40i