Rvng 4.5" B58 Downpipe for 1/2/3/4/5/7/ Series RWD & Xdrive – ALL GENERATIONS
$299.99 USD
Rvng 4.5" B58 Downpipe for 1/2/3/4/5/7/ Series RWD & Xdrive – ALL GENERATIONS
$299.99 USD
In Stock
Product Info
Rvng 4.5" B58 Catless Downpipe – Premium Stainless Steel Performance Upgrade
Unlock your B58 engine's full potential with the Rvng 4.5" catless downpipe. By eliminating the restrictive factory catalytic converter, this hand-crafted upgrade reduces backpressure for faster turbo spool, increased horsepower, and a more aggressive exhaust note.
Performance Gains: 15–20 whp without tune; up to 25–30 whp with ECU tuning.
Premium Construction:
- Hand-crafted, TIG-welded SS304 stainless steel
- CNC tube-bent with smooth radius bends to minimize turbulence and maximize flow
- CNC-machined SS304 stainless steel flanges for seamless turbo-to-midpipe transition
- Perfect fitment guaranteed
Warranty & Support: Lifetime warranty plus House of Apex "No Hassle" satisfaction guarantee (includes fitment assistance).
Compatibility: All Gen 1 & 2 B58 engines (BMW models; excludes Toyota Supra).
Fitment Information
House of Apex does our best to ensure we catalog all products as accurately as possible. Please verify fitment with your vehicle to ensure a seamless and smooth install.
For any questions, concerns, or installation help, please email Zac@HouseOfApex.us
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Authorized Supplier Fulfillment
Ships directly from the authorized manufacturer partner.
In-stock items: ships within 2–5 business days
Backordered items: typically requires 2–6 weeks
