BMW Engine Parts for BMW 3 Series E90 (2006-2011)

E9X M3 Performance Underdrive Pulley Kit

For vehicles with a production date from 05/2008+ & a counterclockwise rotating Power S...

T#:593749

Part#: 10.00.011

Ships in 6 Business Days

$ 349.00 USD

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Free additional power to your M3’s rear wheels without sacrificing or compromising your BMW’s reliability. Machined from 6061-T6 aerospace aluminum, Macht Schnell Performance Underdrive Pulleys are strong as well as lightweight to limit parasitic drag from the accessories within a moderate level for maximum performance on or off the track. After machining and engraving, pulleys are then T3 hard anodized for additional strength, anti-corrosion & wear resistance. Our DualDrive design replaces the Crank Accessory & Power Steering Pulleys, resulting in an additional 9-14 HP and 7-9ft. lbs TQ gain for the M3. Gains are due to a reduction in power required to turn accessories; an increase in accessories lifespan due to lower speed will also result. All factory harmonics/balancing are undisturbed. Macht Schnell Performance Underdrive Pulleys have no negative effect on accessory operation and comes fully equipped with new belts. Already have this kit and need new belts? See T#14491 and T#14489 Performance Underdrive Pulleys Features: DualDrive design allows maximum performance, with minor effect on accessory speed Proper cooling temperatures are retained at proper levels on or off the track Maintains proper alternator speed, allowing sustained levels to sensitive control modules Machined from 6061-T6 aerospace aluminum T3 Hard-Anodized for maximum strength and corrosion/wear resistance No affects to crankshaft dampening or harmonics Simple bolt-on installation

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Supertech Single Groove Exhaust Valve - Priced Each

T#:21472889

Part#: BMEVI-1055S-HS

Ships in 4 Business Days

$ 55.99 USD

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$ 55.99 USD

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Single Groove sodium filled exhaust valves for high performance builds Head Diam: 28mm (std) Material: Inconel-Nimonic / Sodium Filled Groove Type: Single Groove Length: 112.9mm Stem Diam: 5.96mm

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Supertech Valve Spring Kit - BMW S65 Engine

T#:4908057

Part#: ST-VSK-S65

Ships in 6 Business Days

$ 469.99 USD

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$ 469.99 USD

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Revitalize your BMW S65 engine's performance with Supertech Beehive Valve Springs – a reliable solution to the common issue of valve spring breakage. Designed as an economical yet high-quality alternative, these valve springs are the perfect complement to Stage 1 and Stage 2 cylinder heads.

Enhanced Durability: Crafted from premium Superclean Chrome Silicon Vanadium Steel alloy.
High-Performance Design: Withstands high rpms for improved engine performance.
Better Memory: Ensures consistent performance under extreme conditions.
Precision Engineering: Computer-designed to manage wire stress levels and harmonics.
Complementary Upgrade: Ideal for use with Stage 1 and Stage 2 cylinder heads.

Upgrade your BMW S65 engine with Supertech Beehive Valve Springs for reliable and durable performance.

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BMW N54 3.0L High Boost Head Gasket - Copper Ring

T#:21604315

Part#: HG-BMW-N54

Ships in 5 Business Days

$ 299.99 USD

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$ 299.99 USD

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BMW N54 3.0L High Boost Head Gasket - Copper Ring is designed for high-performance applications where boosting power is essential. This copper ring head gasket ensures a reliable seal under extreme conditions, making it ideal for high boost N54 engine builds. The 1.5mm thickness and 86mm bore size provide a precise fit and optimal performance.

High-Boost Performance: Ideal for N54 engine builds requiring high boost levels.
Durable Material: Made from high-quality copper ring material for a robust seal.
Optimal Thickness: 1.5mm thickness ensures reliable performance under extreme conditions.
Precise Fit: 86mm bore size fits perfectly with the N54 engine specifications.
Enhanced Reliability: Designed to handle increased pressure and heat for better engine performance.

Upgrade your BMW N54 engine with this high boost copper ring head gasket to achieve exceptional reliability and performance.

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5mm Single Groove Valve Keeper - Set Of 24

T#:21604314

Part#: KPR-5.0-7S-24

In Stock

$ 72.99 USD

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$ 72.99 USD

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Two required per valve, for use with certain supertech valves 5.0mm single groove

Supertech Forged Pistons - Set Of 6

T#:21604329

Part#: P6-BMN55-84-T-6

In Stock

$ 984.99

This product was last offered at the strikethrough price on
05-21-2026

$ 904.99 USD

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$ 984.99

This product was last offered at the strikethrough price on
05-21-2026

$ 904.99 USD

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Supertech forged pistons are a great choice for performance engine builds! Bore: 84.00mm Over Size: STD Comp Ratio: 10.2:1 Dome dish: -10.4 Head CCs: 37cc Comp Height: 32.40mm Stroke: 89.60mm Skirt style: Slipper Design Rod Length: 141.35mm Pin Diam: 22mm Material: 4032 Application: All Motor / Turbo Ring part number: R84-GNH8400 (MUST BE PURCHASED SEPARATELY)

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Supertech Titanium Valve Retainers - Intake - Set Of 12

T#:21604322

Part#: RET-BMN54-TI-12

Ships in 8 Business Days

$ 197.99 USD

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$ 197.99 USD

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7 Degree - 5mm valve stem - Single or Tripe Groove Valves

Supertech Single Groove Intake Valve - Set Of 12

T#:14783498

Part#: BMIVN-1055S-12

Ships in 8 Business Days

$ 310.99 USD

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$ 310.99 USD

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Head Diam: 32mm (std) Material: Stainless Steel 21-4N Groove Type: Single Groove Length: 104.9mm Stem Diam: 4.97mm

Supertech Titanium Valve Retainers - Exhaust - Set Of 12

T#:21604321

Part#: RET-BMN54-TE-12

Ships in 8 Business Days

$ 197.99 USD

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$ 197.99 USD

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7 Degree - 6mm valve stem - Single or Tripe Groove Valves

Supertech Single Groove Exhaust Valve - Set Of 12

T#:14816646

Part#: BMEVI-1055S-HS-1

Ships in 3 Business Days

$ 660.99 USD

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$ 660.99 USD

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Single Groove sodium filled exhaust valve set for high performance builds Head Diam: 28mm (std) Material: Inconel-Nimonic / Sodium Filled Groove Type: Single Groove Length: 112.9mm Stem Diam: 5.96mm

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Performance Dual Valve Spring Kit with Steel Retainers - Set Of 24 ...

T#:21604308

Part#: SPRKFE20N54BE

Ships in 4 Business Days

$ 965.99 USD

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$ 965.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Can be used with factory valve stem seals and keepers. InnSpr.OD: 21mm InnSpr.ID: 14.2mm Seat Pressure: 75 @ 36.5 Open Pressure: 155 @ 10 Max Lift: 12mm Coil Bind: 23.2mm Rate: 8 Kit spring: SPR-FE20BE Kit spring qty: 24 Retainer: RET-BMN54-TI (5mm) / RET-BMN54-TE (6mm) OutSpr.OD: 24.4mm OutSpr.ID: 17.6mm Retainer qty: 24

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Conical Spring Kit - Set Of 24

T#:21604309

Part#: SPRKFE20N54BE2

Ships in 5 Business Days

$ 965.99 USD

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$ 965.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Can be used with factory valve stem seals and keepers. InnSpr.OD: 21mm InnSpr.ID: 14.2mm Seat Pressure: 88 @ 36.5 Open Pressure: 160 @ 10 Max Lift: 12mm Coil Bind: 23.2mm Rate: 7.25 Kit spring: SPR-FE20BE-2 Kit spring qty: 24 Retainer: RET-BMN54-TI (5mm) / RET-BMN54-TE (6mm) OutSpr.OD: 24.4mm OutSpr.ID: 17.6mm Retainer qty: 24

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Performance Conical Valve Spring - Sold Each

T#:21472894

Part#: SPR-FE20BE

In Stock

$ 19.99 USD

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$ 19.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Seat Pressure: 75 @ 37 Open Pressure: 155 @ 10 Max Lift: 12.2mm Coil Bind: 23.20mm Rate: 8 OutSpr.ID: 17.60mm InnSpr.OD: 21.00mm InnSpr.ID: 14.20mm

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Exhaust Valve Set - Sodium Filled - Oversize

T#:21505765

Part#: BMEVI1054SHS-1KT

In Stock

$ 660.99 USD

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$ 660.99 USD

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Head Diam: 28.50m (+0.5mm) Material: Inconel-Nimonic / Sodium Filled Groove Type: Single Groove Length: 114.9mm Stem Diam: 5.95mm

Intake Valve - Black Nitride - Oversize

T#:21505753

Part#: BMIVN-1054S-1

Back Ordered

$ 25.99 USD

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$ 25.99 USD

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Head Diam: 31.9mm (+0.5mm) Material: Stainless Steel 21-4N Groove Type: Single Groove Length: 106.7mm Stem Diam: 4.96mm

Intake Valve - Black Nitride

T#:21505752

Part#: BMIVN-1054S

In Stock

$ 25.99

This product was last offered at the strikethrough price on
06-08-2026

$ 23.99 USD

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$ 25.99

This product was last offered at the strikethrough price on
06-08-2026

$ 23.99 USD

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Head Diam: 31.40mm (std) Material: Stainless Steel 21-4N Groove Type: Single Groove Length: 106.7mm Stem Diam: 4.96mm

Exhaust Valve - Sodium Filled - Oversize

T#:21505757

Part#: BMEVI-1054S-HS-1

In Stock

$ 55.99

This product was last offered at the strikethrough price on
05-03-2026

$ 50.99 USD

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$ 55.99

This product was last offered at the strikethrough price on
05-03-2026

$ 50.99 USD

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Head Diam: 28.50m (+0.5mm) Material: Inconel-Nimonic / Sodium Filled Groove Type: Single Groove Length: 114.9mm Stem Diam: 5.95mm

Forged Connecting Rods - Sold Each

T#:21604327

Part#: CR-BMN55-H144.35

Special Order: No Guaranteed ETA

$ 198.99 USD

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$ 198.99 USD

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Supertech forged rods are a great choice for performance engine builds! These rods come with ARP 2000 hardware and are designed for high powered N55/S55 applications. H-Beam design Forged 4340 alloy Center to center: 144.35mm Be bore: 53.6mm Be width: 20.88 Pe bore: 22mm full float Pe width: 20.88mm tapered ARP 2000 - 3/8" x 1.600" bolts

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Exhaust Valve - Sodium Filled - Std Size

T#:21505756

Part#: BMEVI-1054S-HS

In Stock

$ 55.99

This product was last offered at the strikethrough price on
05-03-2026

$ 50.99 USD

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$ 55.99

This product was last offered at the strikethrough price on
05-03-2026

$ 50.99 USD

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Head Diam: 28mm (std) Material: Inconel-Nimonic / Sodium Filled Groove Type: Single Groove Length: 114.9mm Stem Diam: 5.95mm

Intake Valve Set - Black Nitride - Std Size

T#:21505754

Part#: BMIVN-1054SKT

Ships in 5 Business Days

$ 310.99 USD

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$ 310.99 USD

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Head Diam: 31.40mm (std) Material: Stainless Steel 21-4N Groove Type: Single Groove Length: 106.7mm Stem Diam: 4.96mm

Performance Conical Valve Spring - Set Of 24

T#:21604325

Part#: SPR-FE20BE-2-24

Ships in 8 Business Days

$ 494.99 USD

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$ 494.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Seat Pressure: 84 @ 37 Open Pressure: 157 @ 10 Max Lift: 12.2mm Coil Bind: 23.20mm OutSpr.ID: 17.60mm InnSpr.OD: 21.00mm InnSpr.ID: 14.20mm Rate: 7.25

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Performance Conical Valve Spring - Set Of 24

T#:21604324

Part#: SPR-FE20BE-24

Ships in 8 Business Days

$ 471.99 USD

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$ 471.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Seat Pressure: 75 @ 37 Open Pressure: 155 @ 10 Max Lift: 12.2mm Coil Bind: 23.20mm Rate: 8 OutSpr.ID: 17.60mm InnSpr.OD: 21.00mm InnSpr.ID: 14.20mm

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Supertech Titanium Valve Retainers - Intake - Sold Each

T#:21604319

Part#: RET-BMN54-TI

Ships in 8 Business Days

$ 16.99 USD

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$ 16.99 USD

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7 Degree - 5mm valve stem - Single or Tripe Groove Valves

Supertech Titanium Valve Retainers - Exhaust - Sold Each

T#:21604320

Part#: RET-BMN54-TE

Ships in 8 Business Days

$ 16.99 USD

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$ 16.99 USD

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7 Degree - 6mm valve stem - Single or Tripe Groove Valves

Performance Conical Valve Spring - Sold Each

T#:21604306

Part#: SPR-FE20BE-2

Ships in 8 Business Days

$ 20.99 USD

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$ 20.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Seat Pressure: 84 @ 37 Open Pressure: 157 @ 10 Max Lift: 12.2mm Coil Bind: 23.20mm OutSpr.ID: 17.60mm InnSpr.OD: 21.00mm InnSpr.ID: 14.20mm Rate: 7.25

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