BMW Engine Parts for BMW E90 M3 S65 4.0L

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Turner Motorsport has everything you need to upgrade your BMW through our stages of performance or to keep your car in peak condition with our range of the latest in proven OEM cooling parts. Upgrade your cooling system and engine performance with the selections below to give your BMW a performance and reliability advantage.

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Blue WG38 Gen V Ultra-Gate 38 - 14PSI
Blue WG38 Gen V Ultra-Gate 38 - 14PSI
TurboSmart - Corporate Logo
T#:22591972
Part#: TS-0551-1011
In Stock at Vendor
10% off MSRP $ 430.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 387.99 USD
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10% off MSRP
$ 430.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 387.99 USD
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The Gen V WG38 Ultra-Gate 38 external wastegate is your cost-effective, high-performance solution. This 38mm external wastegate is meticulously designed for hassle-free bolt-on applications that make use of the 2-bolt flange.

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ARP Ultra-Torque Fastener Assembly Lubricant (Select Your Size)
ARP Ultra-Torque Fastener Assembly Lubricant (Select Your Size) ...
ARP - Corporate Logo
T#:338571
Part#: TMS1733
In Stock
Starting at $ 1.99 USD
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Starting at $ 1.99 USD
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If you are using a premium fastener, such as the ARP brand rod bolts, head bolts, or main bolts, then you will want this assembly lube. Made to be used to precisely duplicate all ARP fastener preload specifications.
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Active Autowerke - S65 Power Pulley DPK Belt Kit - E9X M3
Active Autowerke - S65 Power Pulley DPK Belt Kit - E9X M3
For vehicles with production date from 6/2008
For vehicles with production date from 6/2008
Active Autowerke - Corporate Logo
T#:50934275
Part#: 13-001D
Ships in 3 Business Days
$ 75.00 USD
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$ 75.00 USD
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Free Up Real S65 Power — Engineered the Turner Way Your S65 is already making the power. This kit simply lets you keep more of it. The Active Autowerke Power Pulley Kit for the BMW E9X M3 reduces parasitic drag at the crankshaft, trimming rotational mass and freeing up horsepower that would otherwise be consumed by accessory drive load. The result is a measurable increase in rear-wheel output without sacrificing the balance, cooling capacity, or long-term durability expected from a properly engineered BMW upgrade. The crank pulley is CNC-machined from billet 6061 aluminum and finished with a hard-coat anodize for durability under sustained high-RPM operation. Unlike undersized pulleys that compromise system function, this design maintains proper operating characteristics while delivering real-world gains. Late-2007 production E9X M3 models transitioned to a double-sided (DPK) A/C belt configuration. Rather than forcing a workaround, Active Autowerke developed a proper DPK-compatible solution — including the correct matched belt. Applicable kits also include a spare DPK belt for added insurance. Dyno testing on a Mustang chassis dyno confirms gains of 10–12+ rear-wheel horsepower on an otherwise stock vehicle. Installation is fully reversible and requires no permanent modification. Product Highlights 10–12+ RWHP gain verified on stock S65 engines Complete bolt-on system CNC-machined 6061 billet aluminum crank pulley Hard-coat anodized finish for durability Includes correct replacement drive and A/C belts Spare DPK belt included where applicable Compatible with manual and DCT-equipped E9X M3 Reduces parasitic drag and rotational mass Designed to maintain proper operating temperatures Works in conjunction with Active Autowerke performance software Available for single-sided and double-sided (DPK) belt configurations Fitment Information Confirm whether your E9X M3 is equipped with a single-sided or double-sided (DPK) A/C belt prior to ordering to ensure correct application. A properly engineered solution for enthusiasts who want measurable gains while preserving OEM-level refinement and reliability.
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VAC MOTORSPORTS PREMIUM STROKER KIT, BMW S65, 4.4L/4.5L/4.6L/4.7L - Iron Sleeves - 94mm Bore - 11.5:1 Compression - 84 Mm Stroke - HD Piston Pins - Dome Coating - Skirt Coating
VAC MOTORSPORTS PREMIUM STROKER KIT, BMW S65, 4.4L/4.5L/4.6L/4.7L - I...
VAC Motorsports - Corporate Logo
T#:16840476
Part#: SKS65ST2941151S
Ships in 2 Business Days
$ 11,988.99 USD
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$ 11,988.99 USD
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BFI Transmission Mounts - Stage 1 - BMW E30 / E36 / E46 / E9X / Z3 / Z4
BFI Transmission Mounts - Stage 1 - BMW E30 / E36 / E46 / E9X / Z3 / ...
Black Forest Industries - Corporate Logo
T#:50934269
Part#: BFI-BMW-TRANS-01
Ships on Nov 2, 2026
$ 69.99 USD
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$ 69.99 USD
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This kit is a "must-have" for any E36, E46, or E9X owner looking to tighten up their drivetrain's foundation and ensure long-term mechanical reliability.
VAC Motorsports Flanged Cylinder Sleeves - S65
VAC Motorsports Flanged Cylinder Sleeves - S65
VAC Motorsports - Corporate Logo
T#:27705422
Part#: VAC-FCS-S65-G2
Ships on Oct 27, 2026
$ 1,439.99 USD
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$ 1,439.99 USD
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VAC Motorsports Flanged Cylinder Sleeves - S65
VAC Motorsports Flanged Cylinder Sleeves - S65
VAC Motorsports - Corporate Logo
T#:27705424
Part#: VAC-FCS-S65-G1
Ships on Oct 27, 2026
$ 1,439.99 USD
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$ 1,439.99 USD
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