BMW Engine Parts

Blue Thermostat Caps (pair)

T#:54139632

Part#: BMS-TCP-BLU

Ships in 1 Business Day

$ 29.00 USD

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$ 29.00 USD

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Blue B58 BMW Coil Upgrade Adapter Kit - N55

T#:49857415

Part#: BMSN55CUAK

Back Ordered

$ 199.00 USD

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$ 199.00 USD

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Upgrade your N55 ignition system with the N55 → B58 Coil Upgrade Adapter Kit, engineered for a seamless, plug-and-play conversion. This kit lets you run modern B58-style pencil coils on your N55 without modifying the factory harness or compromising valve cover integrity. Why Upgrade: While the N55 is a reliable platform, factory coils can struggle under high boost, heat, and load. B58 coils deliver stronger, more consistent spark, and this adapter kit ensures a clean, OEM-quality integration. Features & Benefits: Direct-fit adapter harness & mounts for straightforward B58 coil installation Plug-and-play design — no cutting, splicing, or permanent modifications Secure coil seating & alignment for consistent performance and reliability Improved ignition stability under high-load or tuned conditions, helping reduce misfires Applications: Stage 1–3 N55 builds, turbo upgrades, ethanol blends, track use, and aggressive daily driving Drivers looking to eliminate heat- and boost-related ignition issues Anyone seeking an OEM+ quality coil upgrade without a messy DIY install Result: A clean, professional installation that modernizes your ignition system and delivers reliable spark performance under all conditions. If you provide the kit’s brand/part number and whether your valve cover is stock or aftermarket, I can refine this description for precise fitment and application.

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BMS Oil Catch Can Oil Filler Cap Dual Vent Connection Kit - G2X/G42/A...

T#:49822554

Part#: BMSB58OCCFCDV

Ships on Aug 28, 2026

$ 139.00 USD

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$ 139.00 USD

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Keep crankcase vapors in check and your intake air clean with the BMS Oil Catch Can Oil Filler Cap Dual Vent Connection Kit for the Gen2 B58. This upgrade ditches the flimsy factory venting in favor of a precision CNC-machined billet oil filler cap and dual-vent fittings engineered to handle increased crankcase pressure under boost. By diverting oil-laden vapors into a catch can instead of back through the intake, this system helps minimize carbon buildup, reduces oily contamination, and promotes more consistent performance as power levels climb. High-quality hoses and fittings ensure a secure, leak-free install that won’t collapse under pressure and maintains a clean, OE-plus appearance in the engine bay. An easy, effective upgrade for B58 enthusiasts looking for cleaner operation, improved engine longevity, and proven performance-focused design

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JB4PRO Flex Fuel Add On Harness - B58/S58

T#:49822568

Part#: JB4PB58FFAOH

In Stock

$ 49.00 USD

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$ 49.00 USD

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Take your B58 or S58 build further with the JB4PRO Flex Fuel Add-On Harness—a simple, plug-and-play way to add an ethanol sensor and optional fuel pressure sensor to your JB4PRO setup. Keep your install clean, your wiring organized, and your tune dialed to match every fuel blend in the tank. Why it matters: Plug & Play: Connects directly to your JB4PRO—no cutting or splicing required. Sensor Ready: Supports ethanol and fuel pressure sensors for precise, real-time fueling adjustments. Clean, Safe Installation: Includes a 12 V adapter and inline fuse for hassle-free integration. How it works: This harness links your JB4PRO tuner to your flex fuel hardware. It’s not a complete flex fuel kit—you still need a compatible ethanol sensor—but it gives your JB4PRO the accurate readings it needs to adjust timing, boost, and fueling for E30, E50, or E85 blends.

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KING Coated & Graded GPC Racing Connecting Rod Bearing Set - BMW S85 ...

NEW FROM KING - PRE-ORDER NOW! Expected ETA of Mid-April

T#:51110164

Part#: CR1057GPC-STDX

In Stock

13% off MSRP $ 885.00

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

$ 436.99 USD

Limited Qty Sale

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13% off MSRP

$ 885.00

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

$ 436.99 USD

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Eliminate the S65 and S85 rod bearing clearance issues with King’s precision-graded GPC kits, the only solution engineered to handle a massive 17,000 PSI. By combining individually measured shells with a silver-based tri-metal structure and ceramic nano-coating, these bearings deliver the perfect oil clearances and extreme-load protection your M-Engine demands. Don’t just replace your bearings, upgrade to the industry’s highest standard of lubrication and high-RPM durability from King Engine Bearings!

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KING Coated & Graded GPC Racing Connecting Rod Bearing Set - Standard...

NEW FROM KING - PRE-ORDER NOW! Expected ETA of Mid-April

T#:51110163

Part#: CR1057GPC

In Stock

44% off MSRP $ 885.00

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

$ 499.99 USD

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44% off MSRP

$ 885.00

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

$ 499.99 USD

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Eliminate the S65 and S85 rod bearing clearance issues with King’s precision-graded GPC kits, the only solution engineered to handle a massive 17,000 PSI. By combining individually measured shells with a silver-based tri-metal structure and ceramic nano-coating, these bearings deliver the perfect oil clearances and extreme-load protection your M-Engine demands. Don’t just replace your bearings, upgrade to the industry’s highest standard of lubrication and high-RPM durability from King Engine Bearings!

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King Racing - BMW S65 GPC Coated Rod Bearings (STD) - E9X M3 ...

T#:51110167

Part#: CR8066GPC

In Stock

13% off MSRP $ 708.00

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

$ 356.99 USD

Limited Qty Sale

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Qty

13% off MSRP

$ 708.00

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

$ 356.99 USD

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GPC Coated standard rod bearing set for BMW E90, E92, and E93 M3 equipped with the S65 V8 engine. Eliminate the S65 and S85 rod bearing clearance issues with King’s precision-graded GPC kits, the only solution engineered to handle a massive 17,000 PSI. By combining individually measured shells with a silver-based tri-metal structure and ceramic nano-coating, these bearings deliver the perfect oil clearances and extreme-load protection your M-Engine demands. Don’t just replace your bearings, upgrade to the industry’s highest standard of lubrication and high-RPM durability from King Engine Bearings!

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King Racing - BMW S65 GPC Coated Rod Bearings (STDX) - E9X M3 ...

T#:51110168

Part#: CR8066GPC-STDX

In Stock

13% off MSRP $ 708.00

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

$ 356.99 USD

Limited Qty Sale

Add to Wish List

Qty

13% off MSRP

$ 708.00

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

$ 356.99 USD

Limited Qty Sale

Add to Wish List

GPC Coated standard rod bearing set for BMW E90, E92, and E93 M3 equipped with the S65 V8 engine. Eliminate the S65 and S85 rod bearing clearance issues with King’s precision-graded GPC kits, the only solution engineered to handle a massive 17,000 PSI. By combining individually measured shells with a silver-based tri-metal structure and ceramic nano-coating, these bearings deliver the perfect oil clearances and extreme-load protection your M-Engine demands. Don’t just replace your bearings, upgrade to the industry’s highest standard of lubrication and high-RPM durability from King Engine Bearings!

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Turbo & Intake Heat Shield - Gen2 B58

T#:49857413

Part#: BMSG2B58THS

Ships on Aug 28, 2026

$ 119.00 USD

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$ 119.00 USD

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Keep heat where it belongs and boost where it counts with a B58 Turbo & Intake Heat Shield for BMW and Toyota Supra—an OE-plus style upgrade that helps your setup stay cooler, more consistent, and happier when you’re leaning on it. BMW’s factory heat management is fine at stock-ish levels, but once you start turning the wick up, the turbo becomes a rolling space heater. That radiant heat soaks the nearby intake tract, nudging IATs up and making performance less repeatable pull after pull. This shield steps in as a dedicated barrier between the turbo and intake components, helping reduce heat soak so you can keep intake air cooler and denser when you’re driving it like you mean it. Built with a clean, factory-inspired mindset, it’s precision-formed to wrap neatly around the B58 turbo and intake area, and it mounts using factory locations for a tidy, OEM-level install. No cutting, no permanent changes, and fully reversible—just a straightforward bolt-on that looks right at home in the engine bay. Made from durable, heat-resistant materials, it’s designed to handle the heat long-term without turning into a crispy science project. Why it matters Cuts down radiant heat from the turbocharger into the intake area Helps reduce intake air temperature creep Improves consistency during repeated pulls and hard driving Adds protection for surrounding components exposed to turbo heat Features & highlights Designed for BMW B58 and Toyota Supra applications Precision-formed for OEM-level fitment Heat-resistant construction for long-term durability Bolt-on install using factory mounting points Clean, OE-plus under-hood appearance

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Turbo & Intake Heat Shield - Gen1 B58

T#:49857410

Part#: BMSB58THS

Ships on Aug 28, 2026

$ 119.00 USD

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$ 119.00 USD

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Keep heat where it belongs and boost where it counts with a B58 Turbo & Intake Heat Shield for BMW and Toyota Supra—an OE-plus style upgrade that helps your setup stay cooler, more consistent, and happier when you’re leaning on it. BMW’s factory heat management is fine at stock-ish levels, but once you start turning the wick up, the turbo becomes a rolling space heater. That radiant heat soaks the nearby intake tract, nudging IATs up and making performance less repeatable pull after pull. This shield steps in as a dedicated barrier between the turbo and intake components, helping reduce heat soak so you can keep intake air cooler and denser when you’re driving it like you mean it. Built with a clean, factory-inspired mindset, it’s precision-formed to wrap neatly around the B58 turbo and intake area, and it mounts using factory locations for a tidy, OEM-level install. No cutting, no permanent changes, and fully reversible—just a straightforward bolt-on that looks right at home in the engine bay. Made from durable, heat-resistant materials, it’s designed to handle the heat long-term without turning into a crispy science project. Why it matters Cuts down radiant heat from the turbocharger into the intake area Helps reduce intake air temperature creep Improves consistency during repeated pulls and hard driving Adds protection for surrounding components exposed to turbo heat Features & highlights Designed for BMW B58 and Toyota Supra applications Precision-formed for OEM-level fitment Heat-resistant construction for long-term durability Bolt-on install using factory mounting points Clean, OE-plus under-hood appearance

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Radium - Split-Flow Flex Fuel Sensor Adapter

T#:53290958

Part#: 20-0589

In Stock at Vendor

$ 99.99 USD

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$ 99.99 USD

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Blue B58 BMW Coil Upgrade Adapter Kit - N54

T#:49857414

Part#: BMSN54CUAK

Ships on Aug 28, 2026

$ 199.00 USD

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$ 199.00 USD

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Modernize your N54 ignition system with this N54 to B58 Coil Upgrade Adapter Kit, engineered to deliver an OEM-quality conversion for improved spark energy and consistency. Designed to pair B58-style pencil coils with the factory N54 engine harness, this kit provides a clean, reversible installation—no cutting, splicing, or guesswork required. Key Features & Benefits: Direct-fit adapter solution to run B58 coils on N54 applications Plug-and-play wiring integrates with the factory N54 harness for a factory-like install Secure coil positioning helps ensure proper seating and reliable long-term fitment Improved ignition stability under higher cylinder pressures—ideal for tuned, higher-boost setups Clean, serviceable conversion that maintains a tidy engine bay and simplifies future maintenance Ideal For: Stock to heavily modified N54 builds Vehicles running elevated boost, ethanol blends, or upgraded turbo systems Owners looking to reduce ignition-related misfires and improve combustion consistency under load If you share the brand/part number of the kit and which coils you’re pairing it with, I can tailor the write-up to match the exact components and fitment notes.

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Intensity Lithium-ION Battery - i34RX - 11.5lbs

T#:54388454

Part#: I34RX

Ships in 6 Business Days

$ 949.99 USD

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$ 949.99 USD

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Whether you're building a dedicated track weapon or upgrading your street machine for ultimate reliability, unsprung and upper-chassis weight is the enemy of performance. Positioned high up in the engine bay or rear corners, a heavy factory battery negatively impacts your car's center of gravity.

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Black Forest Industries Engine Mounts - Stage 1 - BMW E30 / E36 / E46...

T#:50934264

Part#: BFI-BMW-90-01

Ships on Sep 3, 2026

$ 199.99 USD

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$ 199.99 USD

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Eliminate the "drive-line slop" common in the E36 and E46 chassis with this Stage 1 Engine Mount kit.

BFI Transmission Mounts - Stage 1 - BMW E30 / E36 / E46 / E9X / Z3 / ...

T#:50934269

Part#: BFI-BMW-TRANS-01

Ships on Sep 3, 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.

Black Forest Industries Engine Mounts - Stage 1 - BMW F8X M2 / M3 / M...

T#:50934268

Part#: BFI-BMW-F8X-M1

Ships on Sep 3, 2026

$ 349.99 USD

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$ 349.99 USD

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By upgrading to a solid-core poly design, you eliminate the risk of fluid-filled mount failure while gaining a significantly more stable drivetrain platform.

Black Forest Industries Engine Mount - Stage 1 (Pair) - BMW E8X / E9X...

T#:50934267

Part#: BFI-BMW-E9X-M1

Ships on Sep 3, 2026

$ 302.99 USD

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$ 302.99 USD

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These Stage 1 mounts provide the structural rigidity needed to handle increased boost levels and higher torque loads while dampening the vibrations typical of the BMW straight-six.

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Sub-Categories

Blue Thermostat Caps (pair)

Blue B58 BMW Coil Upgrade Adapter Kit - N55

BMS Oil Catch Can Oil Filler Cap Dual Vent Connection Kit - G2X/G42/A...

JB4PRO Flex Fuel Add On Harness - B58/S58

KING Coated & Graded GPC Racing Connecting Rod Bearing Set - BMW S85 ...

KING Coated & Graded GPC Racing Connecting Rod Bearing Set - Standard...

King Racing - BMW S65 GPC Coated Rod Bearings (STD) - E9X M3 ...

King Racing - BMW S65 GPC Coated Rod Bearings (STDX) - E9X M3 ...

Turbo & Intake Heat Shield - Gen2 B58

Turbo & Intake Heat Shield - Gen1 B58

Radium - Split-Flow Flex Fuel Sensor Adapter

Blue B58 BMW Coil Upgrade Adapter Kit - N54

Intensity Lithium-ION Battery - i34RX - 11.5lbs

Black Forest Industries Engine Mounts - Stage 1 - BMW E30 / E36 / E46...

BFI Transmission Mounts - Stage 1 - BMW E30 / E36 / E46 / E9X / Z3 / ...

Black Forest Industries Engine Mounts - Stage 1 - BMW F8X M2 / M3 / M...

Black Forest Industries Engine Mount - Stage 1 (Pair) - BMW E8X / E9X...

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