Fits BMW M3, Z3 M, and Z4 M models equipped with the S54 inline-six engine.

Optimize your valvetrain's durability and performance with this set of 12 Supertech black nitrided intake valves. Specifically engineered for the high-revving demands of the BMW S54 engine, these valves undergo a specialized nitriding process that significantly increases surface hardness while reducing friction. This treatment results in a smoother finish on the valve stem, which minimizes wear on the valve guides and provides superior resistance to the extreme thermal loads found in performance driving and track applications.

• Engine Compatibility: BMW S54B32
• Material: Specialized valve steel with Black Nitride treatment
• Part Type: Intake Valve
• Quantity: Set of 12
• Manufacturer Part Number: BMIVN-1040S-12
• Enhanced surface hardness for high-RPM reliability
• Reduced friction for improved valve guide longevity

Designed for the high-revving BMW S54 engine found in the M3, these Supertech intake valves are an essential upgrade for performance builds and cylinder head refreshes. This complete set of 12 valves features a specialized black nitriding treatment, providing a hardened surface that significantly reduces friction and improves wear resistance within the valve guides.

Unlike standard chrome-plated valves, the nitriding process creates a smoother finish that excels under high heat and high-RPM conditions, ensuring consistent valvetrain stability and longevity. These are engineered to meet or exceed OE tolerances while providing the durability required for track-day stress or spirited street use.

• Manufacturer Part Number: BMIVN-1040-12
• Application: BMW M3 (S54 Engine)
• Material: Black Nitrided Stainless Steel
• Quantity: Set of 12 Intake Valves
• Improved surface hardness and reduced stem-to-guide friction
• Designed for high-performance and high-RPM applications

Designed for high-performance builds, this set of 12 Supertech intake valves fits BMW M50, M52, S50, and S52 engines. These valves feature a +1mm oversize head diameter to increase airflow and volumetric efficiency, making them an essential upgrade for high-flow cylinder head configurations.

Each valve is treated with a black nitriding process, which creates a hardened surface that significantly reduces friction and improves wear resistance. This treatment is particularly beneficial for engines operating at high RPMs or under the extreme thermal loads of forced induction. Supertech uses high-tensile materials to ensure these valves maintain their structural integrity where factory components might fail.

• Engine Application: BMW M50, M52, S50, S52
• Component: Intake Valve
• Sizing: +1mm Oversize head diameter
• Finish: Black Nitrided for reduced friction and increased hardness
• Quantity: Set of 12 valves
• Manufacturer Part Number: BMIVN-1031S-12

Note: These +1mm oversize valves require precision valve seat machining to ensure proper fitment and a reliable seal within the cylinder head.

Fits BMW engines including the M50, M52, S50, and S52. This complete set of 12 intake valves is engineered for high-performance applications where valvetrain durability and reduced friction are critical for sustained power.

Supertech valves undergo a specialized Black Nitriding process, which hardens the surface and creates a smoother finish. This treatment significantly reduces wear on the valve guides and provides superior heat resistance compared to standard chrome-plated valves. Designed to withstand the stresses of high-RPM operation, these valves are a necessary upgrade for forced induction or high-compression BMW builds.

• Manufacturer Part Number: BMIVN-1030S-12
• Valve Type: Intake
• Surface Treatment: Black Nitrided finish
• Quantity: Set of 12
• Material: High-strength stainless steel alloy
• Reduces friction for improved valvetrain efficiency

Fits select 1991-2000 BMW 3 Series, 5 Series, and Z3 models equipped with the M50, M52, S50, or S52 24V inline-six engines.

This set of 12 Supertech intake valves is engineered for high-performance BMW cylinder heads requiring superior thermal management and reduced friction. Each valve is manufactured from high-tensile stainless steel and undergoes a specialized black nitriding process. This treatment creates a hardened surface layer that significantly improves wear resistance in the valve guide and provides a smoother finish for reduced drag at high RPMs.

Designed to withstand the rigors of forced induction or high-compression naturally aspirated builds, these valves offer a significant upgrade over factory components in terms of both durability and flow consistency. They are precision-machined to ensure tight tolerances and reliable seating under extreme cylinder pressures.

• Manufacturer Part Number: BMIVN-1030-12
• Material: Black Nitrided Stainless Steel
• Quantity: Set of 12 Intake Valves
• Application: BMW 24-valve M5x and S5x engines
• Process: Nitriding for increased surface hardness and friction reduction

Designed specifically for the BMW M3 S54 engine, this set of 12 Supertech exhaust valves provides the durability and thermal resistance required for high-performance valvetrains. Each valve features a specialized black nitriding treatment, which significantly increases surface hardness and reduces friction between the valve stem and guide.

The nitriding process creates a smooth, micro-porous surface that retains oil more effectively than traditional finishes, leading to improved lubrication and reduced wear in high-RPM environments. These valves are precision-engineered to meet tight tolerances, ensuring a reliable seal and consistent performance for both street and track applications.

• Fits BMW M3 models equipped with the S54 engine
• Valve Type: Exhaust
• Finish: Black Nitrided for superior hardness and friction reduction
• Quantity: Set of 12
• Manufacturer Part Number: BMEVN-1040-12

Fits BMW M50, M52, S50, and S52 engines.

Ensure your cylinder head can withstand the rigors of high-performance use with this set of Supertech Performance exhaust valves. These valves feature a specialized black nitriding treatment, which creates a micro-hardened surface layer. This process provides a smoother finish than traditional chrome plating, resulting in significantly reduced friction within the valve guides and superior resistance to heat-induced wear.

• Precision-machined from high-tensile stainless steel for maximum durability
• Black Nitride surface treatment improves heat dissipation and reduces stem wear
• Designed to meet or exceed OE specifications for seat sealing and flow
• Engineered for high-RPM and forced induction applications
• Manufacturer Part Number: BMEVN-1030S-12
• Quantity: Complete set of 12 exhaust valves

Fits BMW M50, M52, S50, and S52 24V inline-six engines.

Supertech Performance exhaust valves are engineered to withstand the extreme thermal loads and high-RPM stresses of modified BMW powerplants. This set of 12 valves features a specialized Black Nitriding process, which hardens the surface and significantly reduces friction within the valve guide. This treatment provides better heat dissipation and superior wear resistance compared to traditional chrome-plated valves, making them an essential upgrade for both refreshed street builds and dedicated track engines.

• Specifically designed for BMW M50, M52, S50, and S52 cylinder heads
• Black Nitrided finish for increased surface hardness and reduced stem-to-guide friction
• Precision-machined for consistent flow and reliable seating
• Enhanced durability under high heat and high-performance conditions
• Quantity: Set of 12 exhaust valves
• Manufacturer Part Number: BMEVN-1030-12

Engineered for the extreme thermal loads of the BMW S63 V8 engine, this set of 16 Supertech exhaust valves provides the durability required for high-performance turbocharged applications. These valves are manufactured from Inconel, a nickel-chromium-based superalloy specifically chosen for its ability to maintain structural integrity and resist oxidation at extreme exhaust gas temperatures (EGTs).

To optimize cooling, these valves feature a sodium-filled hollow stem. The internal liquid sodium facilitates rapid heat transfer from the valve head to the stem, where it can be dissipated through the valve guides and into the cylinder head’s cooling jacket. This thermal management is essential for preventing pre-ignition and ensuring valve longevity in high-boost or track-driven S63 builds.

• Manufacturer Part Number: BMEVI-1063S-HS-16
• Fitment: BMW S63 V8 32v
• Material: High-strength Inconel Superalloy
• Construction: Sodium-filled hollow stem for superior heat dissipation
• Head Diameter: 29.00mm (Standard)
• Stem Diameter: 5.95mm
• Overall Length: 106.00mm
• Quantity: Complete set of 16

Fits BMW N54 Turbo 3.0L engines.

Engineered to withstand the extreme thermal loads of high-performance turbocharged applications, this set of Supertech exhaust valves is manufactured from Inconel. This high-nickel superalloy is specifically chosen for the exhaust side to provide superior heat resistance and structural integrity where standard stainless steel valves might fail under high exhaust gas temperatures (EGTs). These are an essential upgrade for N54 builds running increased boost pressures or seeing heavy track use.

• Manufacturer Part Number: BMEVI-1055S-HS-12
• Material: Inconel Superalloy
• Engine Compatibility: BMW N54 Turbo (3.0L)
• Quantity: Set of 12 exhaust valves
• Designed for high-heat turbocharged environments

Fits BMW N54B30A engines.

These Supertech exhaust valves are engineered specifically for the extreme thermal environments found in the BMW N54B30A twin-turbo engine. By utilizing a sodium-filled hollow stem, these valves provide significantly improved heat dissipation compared to traditional solid stem designs. This process pulls heat away from the valve head and transfers it through the stem into the cylinder head cooling jackets, reducing the risk of detonation and valve failure in high-boost or track-driven applications.

Forged from Inconel, a specialized nickel-based superalloy, these valves are designed to maintain their structural integrity and resist oxidation at temperatures where standard stainless steel might soften. This set provides a complete replacement for the exhaust side of the N54 cylinder head.

• Sodium-filled hollow stems for advanced thermal management
• High-strength Inconel construction for extreme heat resistance
• Designed for high-performance and forced induction engines
• Set of 12 exhaust valves
• Requires the use of Supertech valve locks (sold separately)
• Manufacturer Part Number: BMEVI-1054S-HS-12

Fits the BMW M3 equipped with the S54 engine.

Engineered to withstand the extreme thermal loads of high-performance and forced induction builds, these Supertech exhaust valves are manufactured from Inconel. This nickel-based superalloy is specifically chosen for its ability to maintain structural integrity and resist oxidation at temperatures that would cause standard stainless steel valves to fail. This makes them a vital upgrade for S54 engines running high boost pressures or enduring sustained high-RPM track use.

• Material: High-temperature Inconel alloy for maximum heat resistance
• Design: Precision-machined for optimized flow and durability
• Compatibility: Specifically for BMW S54 valvetrains
• Quantity: Complete set of 12 exhaust valves
• Manufacturer Part Number: BMEVI-1040S-12

By replacing the factory exhaust valves with Supertech Inconel units, you ensure a higher safety margin against valve fatigue and head-dropping in high-EGT (Exhaust Gas Temperature) environments.

Fits BMW M50, M52, S50, and S52 24-valve straight-six engines.

This set of 12 Supertech Inconel exhaust valves is engineered to handle the extreme thermal loads of high-performance BMW powerplants. By utilizing a nickel-based superalloy rather than standard stainless steel, these valves provide the heat resistance necessary for forced induction (turbocharged or supercharged) or sustained high-RPM racing applications. These components are essential for preventing valve fatigue and failure under intense combustion temperatures.

• Manufactured from high-strength Inconel alloy for maximum heat resistance
• Suited for extreme duty and high-boost applications
• Precision-engineered for M50, M52, S50, and S52 cylinder heads
• Manufacturer Part Number: BMEVI-1030S-12
• Quantity: Complete set of 12 exhaust valves

Strengthen your engine's cylinder architecture with the Supertech Block Guard, specifically engineered for the Nissan 350 VQ35DET. This kit includes both the left and right side guards to provide critical reinforcement for the factory open-deck block, bridging the gap between the cylinder walls and the outer block casting.

Designed for high-performance and forced induction builds, these guards effectively convert an open-deck block into a semi-closed deck. This significantly reduces cylinder sleeve walk and bore distortion under high boost or extreme RPM, protecting against head gasket failure and cracked bores. Each guard is CNC-machined for a precise press-fit and features integrated coolant passages to maintain efficient thermal management and prevent hotspots.

• Fits Nissan 350 VQ35DET engines
• Includes Left and Right side block guards
• Precision CNC-machined from high-strength aluminum
• Reinforces cylinder walls to prevent sleeve movement and cracking
• Strategically placed coolant ports preserve factory cooling flow
• Manufacturer Part Number: BG-VQ35-DET

Fits 2000-2009 Honda S2000 models equipped with F20C or F22C engines.

The Supertech BG-S2000 Block Guard is a critical engine reinforcement for high-performance F-Series builds. By converting the factory open-deck block into a semi-closed deck, this component provides essential support to the upper cylinder walls. This reinforcement significantly reduces cylinder sleeve walk and vibration, which are common failure points in high-boost or high-compression naturally aspirated applications.

Precision CNC-machined from high-strength aluminum, this block guard is designed for a precise press-fit into the engine's water jacket. Supertech engineers the guard with strategically placed coolant passages to ensure that while the cylinder walls are stabilized, the engine maintains optimal thermal transfer and cooling efficiency across all four cylinders.

• Prevents cylinder sleeve failure and cracking during high-load operation
• CNC-machined aluminum construction for maximum structural integrity
• Integrated coolant ports to prevent hotspots and maintain factory cooling flow
• Essential for turbocharged, supercharged, or high-revving competition engines
• Manufacturer Part Number: BG-S2000

The Supertech Block Guard for the Nissan QR25DE engine provides essential reinforcement for open-deck blocks in high-horsepower and forced-induction applications. This precision-machined component installs into the top of the block's coolant jacket to stabilize the cylinder sleeves, effectively preventing "sleeve walk" and wall failure under extreme cylinder pressures.

Engineered for maximum durability without sacrificing thermal management, the BG-QR25DE features strategically placed passages to maintain critical coolant flow to the cylinder head. It is a vital upgrade for performance builders looking to push the limits of the QR25DE platform while ensuring long-term structural integrity.

• Designed specifically for the Nissan QR25DE open-deck block
• CNC-machined for precise fitment and maximum cylinder wall support
• Minimizes cylinder wall flex and distortion under high boost or high RPM
• Maintains necessary coolant flow for proper engine temperature regulation
• Manufacturer Part Number: BG-QR25DE

Fits Honda K24 engines.

The Supertech Block Guard (BG-K24) provides essential reinforcement for the cylinder sleeves in Honda K24 engine blocks. This component is designed to stabilize the cylinder walls, preventing the sleeve walk and distortion that can occur during high-load, high-RPM, or forced induction operation.

• Specifically engineered for the Honda K24 engine block
• Helps prevent cylinder sleeve failure and maintains bore integrity
• Includes strategic coolant passages to maintain proper thermal management
• Manufacturer Part Number: BG-K24

Reinforce your engine block for high-performance use with the Supertech Block Guard (BG-K20), specifically designed for Honda K20 series engines. In high-boost or high-RPM applications, the factory open-deck design of the K20 block can allow for "cylinder walk," where the sleeves shift under extreme cylinder pressure. This movement can lead to head gasket failure and improper ring seating.

Precision CNC-machined from 6061-T6 aluminum, this block guard is press-fit into the top of the water jacket to stabilize the cylinder sleeves and maintain bore roundness. Supertech incorporates strategic coolant bypass holes to ensure consistent cooling and prevent hotspots during operation.

• Fits Honda K20 series engines
• Manufacturer Part Number: BG-K20
• Constructed from high-strength 6061-T6 aluminum
• Protects against cylinder sleeve movement and head gasket failure
• Engineered with coolant flow passages to maintain factory cooling efficiency

Reinforce your engine block's structural integrity with the Supertech BG-H22A Block Guard. Specifically engineered for the Honda H22A, this component addresses the inherent weaknesses of an open-deck block design. By providing critical support to the upper cylinder walls, it minimizes cylinder sleeve deflection and "sleeve walk," which are common failure points in high-performance builds.

• Precision-machined to ensure a secure fit within the engine's coolant jacket.
• Features integrated coolant passages to maintain proper thermal management and flow to the cylinder head.
• Reduces the risk of cylinder wall cracking under high-boost or high-RPM conditions.
• Essential for turbocharged, supercharged, or high-compression H22A builds.
• Manufacturer Part Number: BG-H22A

Reinforce your Subaru EJ20 engine block against the stresses of high-boost and high-RPM applications with the Supertech Block Guard (BG-EJ20). Precision CNC-machined from high-strength aluminum, this guard press-fits into the open-deck water jacket to provide critical lateral support to the upper cylinder walls. This reinforcement significantly reduces cylinder sleeve walk and helps prevent block failure or cracking under extreme combustion pressures.

• Specifically engineered for the Subaru EJ20 engine platform
• CNC-machined for precise tolerances and a secure press-fit
• Strategically designed coolant passages maintain thermal efficiency and flow to the cylinder head
• Prevents cylinder wall distortion in forced induction builds
• Manufacturer Part Number: BG-EJ20
• Quantity: 2 units (complete set for one EJ20 engine)

Reinforce your Honda D-series open-deck block with the Supertech Block Guard (BG-D15-D16). Fits Honda D15B, D16Z, and D16Y single overhead cam (SOHC) engines.

This precision-engineered component is designed to provide critical support to the upper cylinder walls, significantly reducing sleeve walk and preventing cylinder cracking in high-performance or high-boost applications. By strengthening the deck surface, it ensures better head gasket sealing and maintains cylinder roundness under extreme combustion pressures.

• Fits Honda D15B, D16Z, and D16Y SOHC engines
• Reinforces upper cylinder walls to prevent sleeve deflection
• Engineered to allow for essential coolant flow to the cylinder head
• Ideal for forced induction or high-RPM naturally aspirated builds
• Manufacturer Part Number: BG-D15-D16

Strengthen your engine's foundation with the Supertech BG-B20 block guard, specifically designed for Honda B20 series engines. This precision-engineered component is essential for high-performance builds, particularly those utilizing forced induction or high-compression setups where cylinder wall integrity is at risk.

By reinforcing the top of the cylinder sleeves, this block guard prevents "sleeve walk" and cracking, effectively converting an open-deck block into a more robust semi-closed deck configuration. Supertech manufactures these guards to exacting tolerances to ensure a perfect fit and reliable performance under extreme thermal and mechanical stress.

• CNC machined from high-strength 6061 aluminum alloy
• Engineered with precision coolant passages to maintain proper flow to the cylinder head
• Reduces cylinder sleeve vibration and movement during high-RPM operation
• Provides critical support for high-boost B20 applications
• Manufacturer Part Number: BG-B20

Protect your engine's cylinder walls with the Supertech Block Guard (BG-B16), specifically engineered for Honda B16A and B18C engine blocks. In high-performance applications—particularly those featuring forced induction or high compression—open-deck blocks are susceptible to cylinder sleeve walk and cracking. This precision-machined block guard provides the structural reinforcement necessary to maintain bore roundness under extreme combustion pressures.

Designed for a precise press-fit into the factory water jacket, this component bridges the gap between the cylinder sleeves and the outer block wall. The design incorporates strategically placed coolant passages to ensure efficient thermal management and prevent localized hotspots while maintaining maximum sleeve support.

• Manufacturer Part Number: BG-B16
• Provides critical reinforcement for open-deck Honda B-series engine blocks
• CNC-machined for exact tolerances and easy installation
• Integrated coolant ports preserve proper flow to the cylinder head
• Essential for high-boost, nitrous, or high-RPM race builds

Fits Audi and Volkswagen models equipped with the 1.8T 5V engine.

Upgrade your cylinder head with this set of 12 Supertech Black Nitrided intake valves, specifically engineered for the 20-valve 1.8T platform. These valves are manufactured to withstand the higher temperatures and stresses of turbocharged applications, making them a critical upgrade for high-performance engine builds or high-mileage refreshes.

The Black Nitriding process produces a micro-hardened surface that significantly reduces friction within the valve guides while improving surface integrity. This treatment enhances heat dissipation and ensures long-term reliability under high-RPM and high-boost conditions.

• Manufacturer Part Number: AIVN-1103S-12
• Valve Type: Intake
• Surface Treatment: Black Nitrided
• Quantity: Set of 12 valves
• Fitment: Audi/VW 1.8T 5V engines

Fits Audi and Volkswagen models equipped with the 1.8T engine.

Optimize your cylinder head's performance and longevity with this set of 18 Supertech black nitrided intake valves. Engineered for the 5-valve-per-cylinder architecture, these valves undergo a specialized nitriding process that creates a high-hardness surface. This treatment significantly reduces friction within the valve guides and provides superior resistance to wear and heat compared to standard OE components, making them essential for high-performance or high-boost builds.

• Manufacturer Part Number: AIVN-1103-18
• Compatible Engine: 1.8T
• Quantity: Set of 18 intake valves
• Process: Black Nitrided for reduced friction and increased surface hardness
• Application: Intake side only

Fits Audi and VW models equipped with the 1.8T 20V (5 valves per cylinder) engine.

Supertech Performance intake valves are engineered for high-stress street and racing applications. These valves undergo a specialized black nitriding process to create a significantly harder surface layer. This treatment improves wear resistance and reduces friction within the valve guide for smoother operation at high RPMs. Precision-machined to exacting tolerances, this set of 12 valves provides a complete intake-side refresh for the 5-valve head, ensuring reliable sealing and improved valvetrain longevity under boost.

• Manufacturer Part Number: AIVN-1103-12
• Quantity: Set of 12 intake valves
• Finish: Black Nitrided for reduced friction and increased hardness
• Engine Compatibility: 1.8T 20V (5V)
• Application: Intake side only

Fits Audi/VW vehicles equipped with the 1.8T 20-valve engine.

Supertech Performance exhaust valves are designed to withstand the extreme thermal loads of turbocharged engines. These valves feature a Black Nitride coating, which provides a micro-hardness higher than the base material and a smoother surface finish. This reduces friction between the stem and the valve guide, improving heat dissipation and increasing the longevity of the valvetrain under high-RPM or high-boost conditions.

• Part Number: AEVN-1103-8
• Quantity: Set of 8 Exhaust Valves
• Material: Black Nitride Coated for reduced friction and heat resistance
• Groove Type: Triple Groove
• Application: Specifically for 5-valve-per-cylinder 1.8T cylinder heads

Fits Audi and VW models equipped with the 1.8T 5V engine.

These Supertech exhaust valves are manufactured from Inconel, a nickel-based superalloy specifically chosen for its ability to withstand the extreme thermal loads found in turbocharged engines. Unlike standard stainless steel, Inconel maintains its mechanical properties at high exhaust gas temperatures, preventing valve fatigue and failure in high-boost or competition environments.

Each valve is designed for the 5-valve-per-cylinder 1.8T head, providing a durable solution for builds requiring increased reliability. This complete set includes eight exhaust valves, ensuring consistent performance across all cylinders.

• Engine Compatibility: 1.8T 5V
• Material: High-temperature Inconel alloy
• Valve Type: Exhaust
• Quantity: Set of 8
• Manufacturer Part Number: AEVI-1103S-8

Fits Audi and VW models equipped with the 1.8T 5-valve engine.

Designed for high-performance builds, this set of eight Supertech exhaust valves is manufactured from Inconel, a nickel-based superalloy engineered specifically for the extreme thermal environments of turbocharged exhaust tracks. These valves provide superior heat resistance compared to standard stainless steel, preventing head deformation and failure under the high-boost and high-EGT conditions common in modified 1.8T engines.

• Material: High-strength Inconel alloy
• Application: Exhaust side
• Engine Compatibility: 1.8T 5V (20-valve)
• Quantity: Set of 8 valves
• Manufacturer Part Number: AEVI-1103-8

Designed for high-performance Audi and VW 1.8T 5-valve engines, this set of 12 Supertech exhaust valves is engineered to withstand the extreme thermal loads of forced induction. These valves are manufactured from Inconel, a high-nickel superalloy specifically chosen for its ability to maintain structural integrity at elevated exhaust gas temperatures (EGTs) that would fatigue standard stainless steel components.

Ideal for high-boost or track-driven 20V engines, these valves replace the factory units to provide superior heat resistance and reliability. Each valve is precision-machined to ensure a consistent seal and optimal flow within the cylinder head.

• Part Number: AEVI-1103-12
• Material: Inconel (High-Nickel Alloy)
• Valve Type: Exhaust
• Engine Application: 1.8T 5V (20-Valve)
• Quantity: Set of 12