Kies-Motorsports Doc Race Docrace 2021 2022 2023 2024 2025 2026 BMW M2 M3 M4 S58 Single Turbo Kit G80 G82 G87
Kies-Motorsports Doc Race Docrace 2021 2022 2023 2024 2025 2026 BMW M2 M3 M4 S58 Single Turbo Kit G80 G82 G87

Docrace 2021 2022 2023 2024 2025 2026 BMW M2 M3 M4 S58 Single Turbo Kit G80 G82 G87

Vendor: Doc Race
Product type: Turbo
$8,000.00 USD
$8,000.00 USD
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Kies-Motorsports Doc Race Docrace 2021 2022 2023 2024 2025 2026 BMW M2 M3 M4 S58 Single Turbo Kit G80 G82 G87

Docrace 2021 2022 2023 2024 2025 2026 BMW M2 M3 M4 S58 Single Turbo Kit G80 G82 G87

$8,000.00

Docrace 2021 2022 2023 2024 2025 2026 BMW M2 M3 M4 S58 Single Turbo Kit G80 G82 G87

$8,000.00
Turbo: PTE6670 Next Gen Ball Bearing - 1100hp
Runner Size: 1.25 Schedule 40 (1.66")
Catch Can: No Thanks

 

 

The Most Comprehensive
S58 Single Turbo Kit Available

Kies Motorsports is proud to offer the DOCRace G-Series S58 Single Turbo Kit — developed in collaboration with Precision Turbo and Turbosmart, and purpose-built for the BMW M3, M4, and M2 platforms carrying the S58 engine. This is not a bolt-on turbo swap — it is an engineered system built to the same standards you'd expect from a factory-level integration.

The kit begins with an in-house hand-fabricated turbo manifold featuring substantial 1.90" OD runners — a design capable of facilitating over 1,500hp of exhaust flow. Paired with Precision Turbo's Next Gen 6466 ball bearing turbo, this setup effortlessly achieves 900whp while maintaining a spool characteristic comparable to the stock twin-turbo setup. That's not a claim many single turbo kits can make.

Turbosmart provides the dual 45mm Gen V wastegates included in the kit — premium, race-proven hardware that gives you precise boost control across the entire RPM range.

Where other kits cut corners on charge pipe routing, DOCRace fabricates 3" aluminum charge pipes with a welded, engine-mounted bracket. The S58 motor requires routing a charge pipe directly in front of the engine balancer — without a secure mounting point, that pipe can contact the balancer over time and cause catastrophic damage. DOCRace solved this the right way: a bracket that bolts directly to the engine, exactly like a factory component.

The oil drain line is a pre-assembled aluminum hard line — no rubber hoses to cut, no fittings to assemble incorrectly. Incorrect cutting can cause the line to melt. DOCRace eliminates that risk entirely. All CNC fittings (oil drain, drain block-off, oil feed, oil feed block-off, and PCV) are fitted with fresh o-rings — no reusing worn factory seals.

A stainless steel heat shield is included to protect the OEM fuel line and valve cover from the substantial heat generated by the single turbo system. This is a detail other kits skip — DOCRace doesn't.

The complete kit includes a printed installation manual to guide you through the process from start to finish. The Kies Motorsports team is also available for installation support, tuning consultation (BM3 / MHD flex fuel compatible), and dyno verification at our Hammonton, NJ facility.

Manifold Runner Size Options

Choose the runner diameter that fits your power goals.

1.25"
Schedule 40
1,200+ whp capacity
Industry-standard runner size with a high-flow cast collector. Proven on thousands of builds — ideal for most street and track setups targeting up to 1,200whp.

⚠ Important Installation Notes

  • Vacuum tubing for the wastegates is supplied — routing is your responsibility. Lines routed too close to exhaust will melt, causing overboost or underboost. Properly routing may require disassembling the wastegates to redirect inlet/outlet ports away from heat sources.
  • This kit is intended for off-road, closed-course, and competition use only. Installation on a public road vehicle may violate federal and state emissions law. Kies Motorsports sells this product for lawful use only.
Race / Off-Road Use Designation: All performance parts sold by Kies Motorsports are intended solely for off-road, closed-course, or competition use on vehicles not registered for public highways. Installation on emissions-controlled vehicles may violate the Clean Air Act. California Proposition 65 Warning: this product can expose you to chemicals known to the State of California to cause cancer or reproductive harm. Visit P65Warnings.ca.gov for more information.

What's Included

Everything you need for a complete single turbo conversion — no sourcing additional components.

Precision Turbo (Your Choice)Next Gen ball bearing — 6266, 6466, 7675, or 8285 configurations available
DOCRace Turbo ManifoldHand-fabricated 1.90" OD runners, 1,500hp flow rated. High-flow cast collector on 1.25" option.
2× Turbosmart 45mm Gen V WastegatesRace-proven boost control; vacuum tubing included
3.5" Stainless DownpipeDual 3" outlets; polished finish standard, ceramic coating optional
3" Aluminum Charge PipesPowder coated black standard; welded engine-mounting bracket included
Pre-Assembled Aluminum Oil Drain LineHard-line construction — no field assembly or cutting required
Stainless Steel Heat ShieldProtects OEM fuel line and valve cover from turbo heat
CNC Fittings KitOil drain, drain block-off, oil feed, oil feed block-off, PCV — all with fresh o-rings
3× 3" Silicone Couplers & Hose ClampsCharge pipe connections
V-Band Downpipe ClampSecure, leak-free downpipe connection
Vacuum Tubing for Wastegates6ft silicone vacuum hose
Printed Installation ManualFull step-by-step guide from start to finish

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