2 Series

MAD B58 4.5" Catted Downpipe W/ Bracket BMW F, G Chassis & Supra MAD-3056

MAD B58 4.5″ Catted Downpipe W/ Bracket BMW F, G Chassis & Supra MAD-3056

$408.99
VTT B58/S58 Head Port Block-Off / Built Check Valve Kit The VTT B58/S58 Head Port Block-Off / Check Valve Kit is designed to either seal off or convert the factory head ports used by the OEM low-side PCV system. These ports in the cylinder head utilize engine vacuum to evacuate crankcase gases — but in the process, can allow oil to enter the intake manifold, leading to valve carbon buildup and other performance issues over time. This kit provides two configuration options: Block-Off Version – Completely seals the factory head ports to prevent oil intrusion and unwanted vacuum leaks. Billet Check Valve Version – Converts the head ports into a robust internal PCV system using precision-engineered check valves. These one-way valves allow vacuum to function as intended while blocking boost pressure from entering the crankcase or charge tract. By bypassing the factory PCV valve in the valve cover, the VTT kit replaces it with an improved three-valve internal system integrated directly into the cylinder head. This design improves reliability, simplifies plumbing, and ensures consistent crankcase pressure management — critical for both stock and high-performance B58/S58 applications. This kit does NOT require any tapping, meaning no metal to get into the engine etc. You simply tap the plugs or check valves into place. Key Features Eliminates oil draw-through into the intake manifold Prevents carbon buildup on intake valves Converts to an internal, head-integrated PCV system Utilizes precision-machined check valves for boost sealing Fully reversible — Block-offs or valves can be removed if needed No tapping is required. Easy install, by tapping the blocks or valve into place. Fitment – All B58, and S58

VTT B58/S58 Head Port Block-Off Kit or Billet check valve kit

Price range: $29.99 through $69.99
B58 Gen 2 Top Mount Turbo Kit (G42 M240i, G20 M340i, Supra and Z4 Fitment) Bigboost

B58 Gen 2 Top Mount Turbo Kit (G42 M240i, G20 M340i, Supra and Z4 Fitment) Bigboost

Price range: $4,000.00 through $6,500.00
B58 PRECISION TURBO KIT GEN 1 AND GEN 2 6-PORT (BMW AND SUPRA FITMENT)

B58 PRECISION TURBO KIT GEN 1 AND GEN 2 6-PORT (BMW AND SUPRA FITMENT)

Price range: $4,600.00 through $4,999.00
B58 MPR1200 TURBO KIT

B58 MPR1200 TURBO KIT

Price range: $2,950.00 through $3,150.00
MAD N55 DOWNPIPE V2 BMW M135 M235 M2 335 435 4.0" MAD-009

MAD N55 DOWNPIPE V2 BMW M135 M235 M2 335 435 4.0″ MAD-009

$209.00
MAD N55 CHARGE PIPE BMW M135 M235 M2 335 435 RWD ONLY MAD-1017

MAD N55 CHARGE PIPE BMW M135 M235 M2 335 435 RWD ONLY MAD-1017

$199.00
MAD BMW F3x N55 M135 M235 M2 335 435 High Flow Air Intake W/ Heat Shield MAD-5057

MAD BMW F3x N55 M135 M235 M2 335 435 High Flow Air Intake W/ Heat Shield MAD-5057

$239.00
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RK Autowerks B58 Race PLUS Manifold

RK Autowerks B58 Race PLUS Manifold Gen 1 – Billet Port Injection

Original price was: $5,499.99.Current price is: $4,999.99.
RK Autowerks B58 Race Manifold Gen 1/ Gen 2 – Billet Port Injection Rail

RK Autowerks B58 Race Manifold Gen 1/ Gen 2 – Billet Port Injection Rail

$4,499.99
Bigboost BMW B58 Gen 1 F2x/F3x Top Mount Turbo Kit

Bigboost BMW B58 Gen 1 F2x/F3x Top Mount Turbo Kit

Price range: $4,450.00 through $5,950.00
B58 MPR800 TURBO KIT

B58 MPR800 TURBO KIT

Price range: $2,950.00 through $3,150.00