VTT B58 TU BILLET CNC Valve Cover

VTT Billet Aluminum Valve Cover – B58 TU

The Only Billet Valve Cover Option for the B58 TU Platform

VTT is proud to introduce our B58 TU Billet Aluminum Valve Cover, designed for enthusiasts looking to enhance both the performance and appearance of their engine bay.

The OEM plastic valve cover is known to crack over time and contains a problematic built-in PCV system. Our billet cover eliminates those issues and gives you complete modularity and control over your PCV setup.

We recommend pairing it with our B58 TU Catch Can Kit for the ultimate crankcase ventilation solution. Additional breather options—including our oil cap breather and one-way stainless breathers—are also available to further enhance your setup.

Key Features

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

• Anodized in a variety of durable color options

• Lightweight at 9.7 lbs (vs. 7.9 lbs for the stock plastic cover)

• Includes three shrouded -10 ORB ports for maximum PCV flexibility

• Fully baffled ports to reduce oil carryover

• Only billet option currently available for the B58 TU

• Optional titanium hardware or OEM-style fasteners

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 stock style

• VTT Catch Can add-on option available

Color Options

Available in multiple anodized finishes.

Fitment Guide

• 3 Series – G20 (01/2018 – 12/2019), G21 (10/2018 – 12/2019)

• X3 – G01 (05/2018 – 12/2019)

• X4 – G02 (05/2018 – 01/2020)

• Z4 – G29 (10/2017 – 12/2019)

• Toyota Supra – A90/A91 (2020+)

Important Installation & PCV Notes

Installing an aluminum valve cover removes the OEM-integrated PCV system. If you do not replace it with an external PCV system, your B58 may smoke or bypass oil, especially under boost.

We strongly recommend:

• Adding an external low-side PCV to maintain crankcase vacuum at idle (assists with turbo oil drainage)

• Blocking off head ports to relieve pressure on the valve cover gasket and keep boost out of the crankcase

• Using our Modular Catch Can Kit and Head Port Block-Off Kit for best results

If you’re unsure what to order, email us — we’re happy to help.

Upgrade your B58 TU engine with the only billet valve cover on the market, engineered for high-performance setups, improved PCV control, and sleek under-hood aesthetics.

• 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.