BMW Toyota B58 Single Turbo Kit

RK Autowerks Single Turbo Kit for BMW / Toyota B58

Designed by enthusiasts, for enthusiasts—this RK Autowerks Single Turbo Kit converts your factory twin-scroll turbo B58 into a high-performance single turbo setup. Built for serious horsepower, this kit supports power levels ranging from 1000whp to 1450whp, depending on your turbo selection.

The kit includes everything needed for installation and is compatible with a variety of turbochargers, allowing you to tailor the setup to your exact build goals. For customers aiming for even higher power or using a custom setup, the kit is also available without a turbocharger, giving you the flexibility to pair it with your preferred T4-frame turbo.

Key Features:

• Complete single turbo conversion kit for BMW / Toyota B58
• Supports 1000–1450whp depending on turbo choice
• High-flow T4 turbo manifold designed by RK Autowerks
• Available with or without turbocharger
• All necessary components for installation included

Whether you're building a high-horsepower street car or a competition-level race machine, this single turbo kit delivers the performance and reliability serious B58 builds demand.

Turbo Options:

1. Garrett G42-1200C
2. Garrett G40-1150
3. Garrett G42-1450

Kit Contents:

1. T4 divided Turbocharger, selected at time of purchase
2. (2) TurboSmart 45mm Wastegates
3. RK Twin scroll T4 divided manifold
4. RK 3.5″ Down Pipe
5. (2) RK Dump Tubes
6. RK chargepipe adapter and coupling
7. RK 4An oil feed lines
8. RK Oil Return Block Off Fitting
9. RK Oil Feed Block Off Fitting
10. RK Oil Return Block Fitting 8AN
11. RK Oil Feed Block Fitting 4AN
12. RK Drain Block Off Front
13. RK Turbo Oil Drain Fitting / with Bolts and O-Ring
14. RK Coolant relocation bracket
15. RK Coolant relocation lines
16. V-Band Clamp for Down Pipe
17. Turbo Studs & Turbo Gasket

Chargepipe Kit Included

• Aluminum J pipe
• Throttle body adapter
• Silicone 90 coupler
• Silicone 45 coupler
• (6) T-bolt clamps