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DOC Race
DOC Race B58 Gen 2 Top Mount Turbo Kit - BMW M340i/M240i
$6,200.00
OVERVIEW
A complete top-mount single-turbo conversion for the B58 Gen 2 (B58TU), built around a tubular stainless manifold with 1.90" OD runners capable of flowing well over 1,200hp. Available with your choice of Precision Turbo (PTE) Next Gen ball-bearing turbos, or supply your own, and in two runner sizes depending on your power goals.
SPECS
- Tubular stainless manifold with 1.90" OD runners
- Runner size options: 1.25" Schedule 40 (industry-standard, high-flow investment cast collector) or 1.5" Schedule 40 (larger, for reduced backpressure)
- Turbo options: supply your own, or choose from PTE Next Gen ball-bearing units or a Comp 6871 Triple Ceramic turbo
- 3.5" stainless downpipe
- Standard finish: polished (ceramic coating available as an add-on)
- Built to order — typically ships in 4 weeks
PARTS INCLUDED
- 1x tubular stainless turbo manifold
- Selected turbocharger (or none, if supplying your own)
- (2) Turbosmart 45mm wastegates with dump tubes
- 3.5" stainless downpipe
- (2) charge pipes (turbo to throttle body) with silicone couplers and clamps
- Stainless oil drain, oil feed, and coolant bypass line kits
- T4 gasket, turbo studs/nuts, exhaust V-band clamp, 4" turbo screen, heat shield
- Valve cover vent filter, 3/4" boost caps, nylon wastegate vacuum tubing and fittings
TECH RESOURCES
- Built to order — typically ships in about 4 weeks
VEHICLE APPLICATIONS
| Make | Model | Chassis | Engine | Year |
|---|---|---|---|---|
| BMW | M340i (RWD & xDrive) | G20 | B58 (Gen2) | 2020–2024 |
| BMW | M240i (RWD & xDrive) | G42 | B58 (Gen2) | 2022–2024 |