Rvng 4.5" B58 Downpipe for 1/2/3/4/5/7/ Series RWD & Xdrive – ALL GENERATIONS
Rvng 4.5" B58 Downpipe for 1/2/3/4/5/7/ Series RWD & Xdrive – ALL GENERATIONS
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Product Description
Product Description
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).
- Authorized Supplier
- Secure Payment
- Fast U.S Shipping
House of Apex does our best to ensure we catalog all products as accurately as possible. Verify fitment with your vehicle to ensure a seamless and smooth install.
For any questions, concerns, or installation help, please email Zac@HouseOfApex.us
Low stock: 10 left
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