VTT B58 Gen 1 BILLET CNC Valve Cover

VTT Billet Aluminum Valve Cover – B58 Gen 1

Performance, Reliability, and Style for the B58 Gen 1 Platform

VTT is proud to introduce our B58 Gen 1 Billet Aluminum Valve Cover, engineered for enthusiasts seeking both performance and reliability. This cover replaces the factory plastic unit, which is known to crack and incorporates a restrictive PCV system. Our billet design eliminates those weaknesses while giving you complete control over your crankcase ventilation setup.

We recommend pairing this valve cover with the VTT B58 Catch Can Kit for maximum performance and crankcase pressure management. Additional breather options—including our oil-cap breather and one-way stainless breathers—are also available to fine-tune your configuration.

Key Features

• 100 % CNC-machined 6061-T6 aircraft-grade aluminum

• Multiple anodized color options, with custom finishes available

• Lightweight design – 9.7 lbs (vs. 7.9 lbs for the stock cover)

• Fully baffled internal system to minimize oil carryover

• Fully modular PCV configuration for complete ventilation control

• The only billet valve-cover option currently available for B58 Gen 1

Kit Includes

• Billet aluminum valve cover

• Low-side vacuum/boost adapter with banjo fitting

• Choice of breather options (oil-cap breather, stainless one-way, etc.)

• Optional hardware kit – titanium or OEM-style fasteners

• VTT Catch Can add-on option available

Color Options

Available in multiple anodized finishes to match or contrast your build.

Fitment Guide

• 3 Series – F30/F31/F32 (2016 – 2019)

• 4 Series – F32/F33/F36 (2016 – 2019)

• X3 – G01 (2017 – 2019)

• X4 – G02 (2018 – 2019)

• Toyota Supra A90 (2019 – 2020 pre-TU models)

Important Installation & PCV Notes

Upgrading to an aluminum valve cover removes the factory-integrated PCV system. Without an external PCV setup, your B58 may smoke or bypass oil under boost or idle conditions.

We strongly recommend:

• Installing an external low-side PCV to maintain crankcase vacuum at idle (aids turbo oil drainage)

• Blocking off head ports to reduce pressure on the valve-cover gasket and prevent boost from entering the crankcase

• Using the VTT Modular Catch Can Kit and Head Port Block-Off Kit for optimal performance

If you’re unsure which components you need, email us — we’re happy to help.

Upgrade your B58 Gen 1 engine with the industry’s only billet aluminum valve cover — engineered for strength, reliability, and total PCV control.

• Free US shipping on orders over $250.
• Free pickup at our Dallas shop, usually ready within 24 hours.
• Unused parts can be returned within 30 days. Tunes, opened electronics, merch and installed parts are final sale.
• Want it installed? Book the install at thegbmotors.com.

Full details are on our shipping and returns page.