JDY Performance BMW B58TU Top-Mount Single Turbo Kit – M240i/M340i/M440i
JDY Performance BMW B58TU Top-Mount Single Turbo Kit for G-Series M240i, M340i and M440i applications.
The package combines a 316 stainless tubular exhaust manifold, 4-inch 304 stainless downpipe, Precision Gen2 56 mm wastegate system, oil/water plumbing, charge piping, heat management hardware and the supporting installation components required for a complete top-mount conversion.
Manifold and turbo system
- CNC-machined six-port manifold flange
- 316 stainless manifold construction with two runner-size families matched to the selected turbo frame
- 42 mm runner configuration for current Precision 6670 and 6870 choices
- 48 mm runner configuration for current Sportsman 6875, 7480 and 8085 choices
- 4-inch stainless downpipe with OEM oxygen-sensor provisions and additional wideband provision
- Precision Gen2 56 mm external wastegate with screamer or recirculated routing
- AN/PTFE oil and water plumbing with thermal protection
- JDY fast-release charge-pipe connections and heat-management components
M Lab configuration: BMW applications only. Toyota/Supra-specific routing has intentionally been excluded from this BMW-only catalogue listing.
Current JDY lead time: approximately 3–4 weeks.
Professional installation, fabrication checks and calibration/tuning are required for a single-turbo conversion.
Chassis: G42, G20, G21, G22, G23, G26
Engines: B58
View compatible BMW ranges
M240i, M340i, M440i
View full year and variant fitment
PROFESSIONAL FITTING AVAILABLE
Need M Lab by Boost & Tune to install this?
Have this part professionally fitted, checked and configured by our BMW performance workshop.
Product: JDY Performance BMW B58TU Top-Mount Single Turbo Kit – M240i/M340i/M440i
Workshop installation in Albion, Victoria
Vehicle compatibility
Fits these BMW platforms
Select a BMW in My Garage to check this product.
Use the BMW vehicle selector and confirm VIN, model year, drivetrain, steering side and factory options before ordering.
Product categories
Also found in
Dual-purpose products can appear in several collections without creating duplicate product pages.