The AEM Fuel Pulse Damper (MPN 25-4002) is engineered to stabilize pressure pulsations within the fuel rail caused by the rapid opening and closing of large injectors and high-volume fuel pump operation. By smoothing these pressure waves, the damper ensures more consistent fuel delivery and improved tuning stability in high-performance applications.

Constructed from fully anodized billet aluminum with stainless steel springs and a durable fluorosilicone diaphragm, this unit is designed to withstand all fuel types. It features an integrated 1/8" NPT port, making it easy to install a mechanical pressure gauge or electronic transducer directly to the damper body.

• Pressure Range: Designed for systems operating between 40-70 PSI.
• Fittings: Includes AN6 ORB fittings for versatile plumbing options.
• Integrated Port: 1/8" NPT port for pressure sensors or gauges.
• Materials: CNC-machined billet aluminum body with stainless steel internals and fluorosilicone diaphragm.
• Fuel Compatibility: Compatible with gasoline, methanol, ethanol, and E85.

Keep your fuel system performing at its peak with the AEM Universal Adjustable Fuel Pressure Regulator Rebuild Kit (MPN 25-392). Over time, fuel regulator diaphragms can fatigue, leading to inconsistent fuel pressure and tuning issues. This comprehensive kit provides the essential internal components needed to service and refresh your AEM billet adjustable fuel pressure regulator, ensuring precise pressure management and a leak-free seal.

• Designed specifically for AEM billet adjustable fuel pressure regulators
• Restores consistent fuel pressure delivery and regulation
• Includes a single large .250-inch return orifice for high-flow capacity
• High-quality replacement diaphragm for accurate pressure response
• Replacement O-ring ensures a reliable, leak-free internal seal
• Manufacturer Part Number: 25-392

The AEM High Capacity Universal Adjustable Fuel Pressure Regulator (PN 25-305BK) is engineered for high-boost race applications and vehicles requiring high-volume fuel delivery. CNC-machined from 6061-T6 billet aluminum and finished in black anodizing, this regulator features a single large return orifice designed to prevent pressure creep even when paired with high-flow pumps.

• Adjustable Range: Equipped with a longer spring to provide a wide 40 to 130 PSI adjustment range.
• Rising Rate: 1:1 boost-dependent rising fuel pressure rate for forced induction setups.
• Port Configuration: Includes three -6AN (9/16"-18) ORB ports (two inlets, one return) and an integrated 1/8" NPT port for a fuel pressure gauge or sensor.
• Fuel Compatibility: Fully compatible with alcohol-based fuels (E85) and all race gases.
• Construction: Precision CNC-machined from 6061-T6 billet aluminum for durability under extreme conditions.

Each kit includes a universal mounting bracket, four 10-32 x 1/2" screws, and a 5mm (3/16") vacuum hose barb. This unit is protected under Patent # 6,298,828. Note: Barb fitting for the outlet port is sold separately (PN 25-390).

Fits select 1994-2000 Acura and Honda models, including Acura CL and Honda Accord, Civic, Civic del Sol, and CR-V.

The AEM 25-304BK Adjustable Fuel Pressure Regulator is engineered to provide the precise fuel delivery required for high-performance applications. Capable of supporting engines up to 1000 horsepower, this unit features patented interchangeable discharge orifices (Patent #6,298,828) that allow the regulator output to match virtually any fuel pump. It is CNC-machined from 6061-T6 billet aluminum for maximum durability and finished in a sleek black anodizing.

This regulator mounts directly to the O.E. fuel rail or an AEM High Volume Fuel Rail, making it a versatile choice for both stock and modified setups. It features a 1:1 boost-dependent rising fuel pressure rate and is fully adjustable from 20 psi up to the maximum capacity of your fuel pump. The base is tapped to accept -6 AN or 9/16"x18 fittings, and AEM includes a custom barb fitting to accommodate the factory fuel hose.

• Manufacturer Part Number: 25-304BK
• Material: 6061-T6 billet aluminum
• Adjustment Range: 20 psi to maximum pump capacity
• Pressure Ratio: 1:1 rising rate
• Port Type: Accepts -6 AN or 9/16"x18 fittings
• Included: Custom barb fitting and single large discharge orifice

Fits select 1986-2002 Honda and Acura models, including Integra, Civic, CRX, Prelude, NSX, and TL.

AEM's Adjustable Fuel Pressure Regulator (FPR) provides the high-volume fuel flow necessary for high-performance applications, capable of supporting engines up to 1000 horsepower. This regulator features patented interchangeable discharge ports that allow you to match the regulator's output to any fuel pump. CNC-machined from 6061-T6 billet aluminum, the 25-303BK is designed for durability and precision, mounting directly to the factory fuel rail or an AEM High Volume Fuel Rail.

The unit provides a 1:1 boost-dependent rising fuel pressure rate and is adjustable from 20 psi up to the maximum capacity of your fuel pump. For installation flexibility, the base is tapped to accept either -6 AN or 9/16"x18 fittings, and a custom barb fitting is included to accommodate the factory fuel hose.

• CNC-machined from 6061-T6 billet aluminum with a black anodized finish
• Adjustable from 20 psi to maximum fuel pump capacity
• Boost-dependent 1:1 rising fuel pressure rate
• Patented interchangeable discharge orifices (Patent # 6,298,828)
• Accepts -6 AN or 9/16"x18 fittings
• Mounts to O.E. fuel rail or AEM High Volume Fuel Rail
• Manufacturer Part Number: 25-303BK

The AEM Universal Adjustable Fuel Pressure Regulator (25-302BK) is engineered to provide precise fuel pressure management for high-performance applications. CNC-machined from 6061-T6 billet aluminum, this regulator is capable of supporting fuel flow for engines producing up to 1,000 horsepower. It features a 1:1 boost-dependent rising fuel pressure rate, ensuring consistent delivery under forced induction.

This universal unit is tapped to accept -6 AN or 9/16" x 18 fittings and includes a dedicated 1/8" NPT port for a fuel pressure gauge or sensor pickup. Its robust construction and wide adjustment range make it a reliable choice for racing and custom fuel systems.

• Adjustable fuel pressure range from 20 to 120 PSI
• 1:1 boost reference rising rate
• CNC-machined 6061-T6 billet aluminum construction
• Supports up to 1,000 HP fuel flow requirements
• Interchangeable discharge ports match regulator output to fuel pump capacity
• Integrated 1/8" NPT port for gauge or pressure sensor
• Patented design (Patent # 6,298,828)
• Includes mounting bracket and necessary hardware

Fits select 1996-2005 Honda Civic, Accord, S2000, CR-V, and Acura CL models.

The AEM 25-301BK Adjustable Fuel Pressure Regulator is engineered to provide precise fuel management for high-output Honda and Acura engines, capable of supporting flow for builds up to 1,000 horsepower. This unit features patented interchangeable discharge ports (U.S. Patent # 6,298,828) that enable you to match the regulator’s output to the capacity of virtually any fuel pump.

CNC-machined from 6061-T6 billet aluminum with a durable black finish, this regulator is designed for a clean installation, mounting directly to the factory fuel rail or an AEM High Volume Fuel Rail. It utilizes a boost-dependent 1:1 rising fuel pressure rate, making it an essential component for forced induction setups where maintaining a consistent pressure differential is required.

• Adjustable from 20 psi to maximum fuel pump capacity
• Precision CNC-machined 6061-T6 billet aluminum construction
• Includes interchangeable discharge orifices to match specific pump outputs
• Base tapped to accept -6 AN or 9/16"x18 fittings
• Includes custom barb fitting to accommodate factory fuel hoses
• Boost-dependent 1:1 rising fuel pressure rate
• Supports engines up to 1,000 HP
• Manufacturer Part Number: 25-301BK

The AEM 25-300BK Adjustable Fuel Pressure Regulator is engineered to provide precise fuel pressure management for high-performance tuning. Capable of supporting fuel flow for engines up to 1000 horsepower, this regulator features AEM's patented interchangeable discharge ports, allowing you to match the regulator's output to any fuel pump capacity. The unit is CNC-machined from 6061-T6 billet aluminum for durability and finished in a sleek black anodizing.

Fits select 1986-2005 Acura and Honda models, including Integra, Civic, Accord, Prelude, NSX, and S2000. This regulator mounts directly to the factory fuel rail or the AEM High Volume Fuel Rail, providing a clean installation while replacing the restrictive factory unit. It utilizes a 1:1 rising rate for boost-dependent fuel pressure increase and is adjustable from 20 psi up to the maximum capacity of your fuel pump.

• Manufacturer Part Number: 25-300BK
• Material: CNC-machined 6061-T6 billet aluminum
• Pressure Range: Adjustable from 20 psi to maximum fuel pump capacity
• Rising Rate: 1:1 boost-dependent ratio
• Fittings: Base tapped for -6 AN or 9/16"x18 fittings; includes custom barb for factory fuel hose
• Patented interchangeable discharge orifices (Patent # 6,298,828)
• Supports up to 1000 HP

The AEM 25-204 Universal High Flow Fuel Filter is engineered for high-performance EFI systems requiring high fuel volume without sacrificing filtration efficiency. This inline filter features a 10-micron element capable of flowing 100 GPH, making it a reliable choice for vehicles running gasoline or E85 ethanol blends.

The compact 3.5-inch by 1.5-inch housing allows for easy installation in constrained engine bays or chassis locations. The end caps are precision-machined with -6AN ORB female inlet and outlet ports to ensure a leak-free connection to your high-pressure fuel lines.

• Manufacturer Part Number: 25-204
• Filtration: 10 Micron
• Flow Rate: 100 GPH
• Compatibility: Gasoline and E85
• Ports: -6AN ORB female inlet/outlet
• Dimensions: 3.5" L x 1.5" D

Maintain optimal fuel system performance with the AEM Universal High Volume Fuel Filter Element, part number 25-202. This direct replacement element is engineered for high flow applications, ensuring your engine receives clean, consistent fuel delivery.

Designed to fit AEM's -10AN fuel filter housing (part number 25-201BK), this element captures fine contaminants down to 7 microns, protecting injectors and fuel pumps from harmful debris. Its straightforward design allows for easy installation when routine maintenance calls for a filter change.

• Direct replacement fuel filter element
• Engineered for high-volume fuel systems
• Features -10AN fitting compatibility
• 7 micron filtration rating
• Ensures high flow and excellent contaminant capture
• Replaces element in AEM Fuel Filter Housing Part #25-201BK

The AEM 25-201BK Universal High Flow Inline Fuel Filter is engineered for high-performance fuel systems that require maximum volume without compromising filtration. Machined from 6061-T6 aluminum with a durable black hard-anodized finish, this 2-inch OD filter is designed for easy mounting in almost any location. The end caps feature integrated -10 AN female fittings with machined O-ring receiver grooves and pressure intensifiers to ensure a leak-proof seal even under high pressure.

• Fits universal applications using -10 AN fuel lines.
• Constructed from 6061-T6 billet aluminum with black hard-anodized finish.
• Flows up to 12.32 gpm @ 45 PSI and 2.63 gpm @ 6 PSI.
• Standard 7-micron replaceable filter cartridge for superior particle entrapment.
• Viton O-rings and gaskets for compatibility with gasoline, alcohol, and ethanol-blended fuels (E85).
• Laser-etched with AEM logo, flow direction, and replacement filter data.
• Dimensions: 2" OD x 10" Length.
• Manufacturer Part Number: 25-201BK

Fits select 1994-2001 Acura, Honda, and Isuzu models including Integra, Civic, Accord, and Prelude. The AEM 25-200BK High Volume Fuel Filter is engineered to support fuel flow for high-performance builds producing up to 500 horsepower. Constructed from durable 6061 aluminum with a sleek black finish, this filter features double O-ring seals to provide superior leak protection under high pressure.

Designed as a direct-fit replacement for factory Honda and Acura filter locations, it can also be used as a floating filter in universal applications. The internal high-flow element is easily replaceable using standard service parts, ensuring you aren't sidelined during a race or track event.

• Supports fuel flow for engines up to 500 HP
• CNC-machined 6061 aluminum body with black finish
• 12x1.25 top and 14x1.50 bottom thread sizes for fittings
• Double O-ring seals for maximum leak protection
• Compatible with NAPA Gold #PN4950 or FRAM #CH6069 replacement elements
• Large machined hexes for easy disassembly and service
• Manufacturer Part Number: 25-200BK

The AEM High Volume fuel rail is engineered for the 2005-2006 Mitsubishi Lancer Evolution (including MR, RS, and SE models) to provide the consistent fuel delivery required for high-performance builds. Featuring a large 1/2-inch internal bore, this rail supports fuel flow for applications reaching up to 1,000 horsepower while effectively dampening backpressure pulses created by large aftermarket injectors. It remains fully compatible with stock injector sizes for users planning incremental upgrades.

CNC-machined from billet aluminum and finished in black anodizing with laser engraving, this rail is as durable as it is functional. It includes a custom fitting for the factory fuel line, making it a bolt-on solution for standard setups, while the ends are pre-tapped to accept -6 AN or 9/16"x18 fittings for custom fuel plumbing. An integrated 1/8 NPT port allows for the easy addition of a fuel pressure gauge or nitrous oxide pick-up.

• Manufacturer Part Number: 25-131BK
• 1/2-inch large bore supports up to 1,000 HP and dampens pressure pulses
• CNC-machined billet aluminum construction with black anodized finish
• Integrated 1/8 NPT port for gauges or nitrous accessories
• Ends pre-tapped for -6 AN or 9/16"x18 fittings
• Includes custom fuel line fitting, injector O-rings, and all necessary hardware

Vehicle Fitment:
2005-2006 Mitsubishi Lancer Evolution (Base, MR, RS, SE)

The AEM High Volume Fuel Rail provides the fuel flow necessary for high-performance 1996-2000 Honda Civic and 1996-1997 Civic del Sol applications. Engineered with a large 1/2-inch internal bore, this rail supports power levels up to 1,000 HP while effectively dampening backpressure pulses generated by high-flow fuel injectors.

CNC-machined from billet aluminum and finished in black anodizing with laser engraving, this rail integrates seamlessly with the factory fuel system using the included custom fitting. For high-output custom setups, the ends are pre-tapped to accept -6 AN or 9/16"x18 fittings. An integrated 1/8 NPT port allows for the direct installation of a fuel pressure gauge or nitrous oxide pick-up.

• Fits 1996-2000 Honda Civic and 1996-1997 Honda Civic del Sol
• Large 1/2-inch bore supports fuel flow up to 1,000 HP
• Dampens backpressure pulses from large injectors
• CNC-machined from billet aluminum for durability and precision
• Includes 1/8 NPT port for fuel pressure gauge or nitrous application
• Pre-tapped for -6 AN or 9/16" x 18 fittings
• Includes all necessary hardware, fittings, and injector O-rings
• Manufacturer Part Number: 25-109BK

Fits 1990-1997 Honda Accord and 1992-2001 Honda Prelude models.

The AEM High Volume Fuel Rail is engineered for high-performance builds, featuring a massive 1/2-inch internal bore to provide the consistent fuel flow required for applications supporting up to 1,000 horsepower. This large-bore architecture serves a dual purpose: it provides the volume necessary for high-demand setups while dampening backpressure pulses generated by large aftermarket injectors. This rail remains compatible with factory injector sizes for versatility in staged builds.

CNC-machined from 6061 T-6 billet aluminum and finished in a durable black anodizing, this rail integrates seamlessly into the engine bay. It includes a 1/8 NPT port for easy installation of a fuel pressure gauge or nitrous pick-up. For plumbing flexibility, the rail is pre-tapped to accept -6 AN or 9/16"x18 fittings and includes a custom adapter to retain the factory fuel line where required.

• Manufacturer Part Number: 25-104BK
• 1/2-inch internal fuel bore supports up to 1,000 HP
• Dampens fuel pressure pulses from high-flow injectors
• CNC-machined from 6061 T-6 billet aluminum
• Black anodized finish with laser-engraved branding
• 1/8 NPT port for gauges or nitrous accessories
• Includes injector O-rings, fittings, and mounting hardware
• Manufactured and assembled in the USA

Fits 1994-2000 Honda Civic Si and Civic del Sol VTEC.

The AEM 25-103BK High Volume Fuel Rail is engineered for high-performance builds requiring increased fuel delivery. CNC-machined from 6061 T6 billet aluminum, it features a large 1/2-inch internal bore to support applications up to 1,000 horsepower. This oversized bore also serves as a pulse dampener, smoothing out backpressure pulses created by large aftermarket injectors to ensure consistent pressure across the rail.

Installation is straightforward as a direct bolt-on component. The rail includes a custom fitting to mate with the factory fuel line, while the ends are pre-tapped to accept -6 AN or 9/16" x 18 fittings for those running custom plumbing. A dedicated 1/8 NPT port is integrated into the rail for easy installation of a fuel pressure gauge or a nitrous pick-up.

• 1/2-inch internal bore supports fuel flow up to 1,000 HP
• CNC-machined from 6061 T6 billet aluminum with a black anodized finish
• Dampens backpressure pulses from large fuel injectors
• Integrated 1/8 NPT port for gauges or nitrous systems
• Pre-tapped for -6 AN or 9/16" x 18 fittings
• Compatible with factory or custom fuel lines
• Includes injector O-rings, hardware, and installation fittings
• Manufactured and assembled in the USA
• Manufacturer Part Number: 25-103BK

Fits select 1990-2006 Acura, Honda, and Mitsubishi models, including Integra, Civic, Accord, Prelude, S2000, and Lancer Evolution.

The AEM High Volume fuel rail is engineered for high-performance applications where consistent fuel delivery is critical. Featuring a massive 1/2-inch internal bore, this rail supports fuel flow for setups reaching up to 1,000 horsepower. The increased volume significantly dampens backpressure pulses created by larger fuel injectors, ensuring stable pressure at the injector seat even in high-demand scenarios. This rail is CNC-machined from 6061-T6 billet aluminum and finished with a durable black anodizing and laser engraving for a professional, corrosion-resistant finish.

Installation is straightforward as it is designed to work with the factory fuel line using the included custom fitting. For those running upgraded fuel systems, the rail ends are pre-tapped to accept -6 AN or 9/16"x18 fittings. An additional 1/8 NPT port is integrated for easy installation of a fuel pressure gauge or a nitrous fuel pick-up.

• 1/2-inch fuel bore supports up to 1,000 HP and dampens injector pulses
• CNC-machined from billet aluminum with black anodized finish and laser engraving
• Integrated 1/8 NPT port for fuel pressure gauges or nitrous accessories
• Pre-tapped ends for -6 AN or 9/16"x18 custom fuel line fittings
• Designed for use with factory or custom fuel lines
• Complete kit includes hardware, fittings, and injector O-rings
• Manufactured and assembled in the USA
• Manufacturer Part Number: 25-100BK

Fits 2005-2006 Mitsubishi Lancer Evolution models, including MR, RS, and SE variants.

The AEM Tru-Time Adjustable Cam Gear (MPN: 23-831BK) provides the precision needed to optimize power delivery on heavily modified 4G63 engines. Whether your engine is milled, features high-compression pistons, or utilizes forced induction, these gears allow you to advance or retard cam timing in one-degree increments to match your specific tuning state. Precision-cut gear teeth prevent premature wear on the timing belt, while the hard-anodized surface ensures long-term durability under high-stress racing conditions.

• CNC-machined from 6061-T6 billet aluminum for high strength and reduced rotational mass
• True laser-etched markings on the leading edge for accurate timing adjustments
• Hard-anodized belt surface lab-tested for superior wear resistance
• Grade-8, six-point hex bolts with integral washer flanges for secure, repeatable adjustments
• Enables horsepower and torque gains without necessarily changing camshaft profiles
• Manufacturer Part Number: 23-831BK

Fits 1989-1999 Mitsubishi Eclipse, Galant, Eagle Talon, and Plymouth Laser equipped with the 4G63/T engine.

AEM Tru-Time adjustable camshaft gears are a critical tuning component for high-performance 4G63 engines, particularly those featuring milled heads, forced induction, high compression, or aggressive aftermarket competition cams. These gears allow for precise synchronization of cam timing to compensate for changes in deck height or to optimize the power band by advancing or retarding cam profiles in one-degree increments.

CNC-machined from 6061-T6 billet aluminum, these gears provide maximum durability without unnecessary weight. The belt surface is treated with a lab-proven hard-anodizing process to prevent premature wear. To ensure the settings stay locked during high-RPM operation, AEM utilizes Grade-8 six-point hex bolts with integral washer flanges for superior load distribution and repeat adjustability.

• CNC-machined from 6061-T6 billet aluminum for weight reduction and strength
• True laser-etched markings on the leading edge for accurate 1-degree adjustments
• Hard-anodized belt surface significantly extends gear life
• Grade-8 hex bolts with integral washers for secure clamping and durability
• Allows for horsepower and torque gains without changing camshafts
• Manufacturer Part Number: 23-830BK

Fits 1996-2000 Honda Civic (CX, DX, EX, HX, LX, Value Package) and 1996-1997 Honda Civic del Sol (S, Si) models equipped with D16 series engines.

The AEM Tru-Time Adjustable Camshaft Gear is a critical tuning component for optimizing engine performance. It allows you to increase horsepower and torque without a full camshaft replacement, making it essential for D16 engines modified with milled heads, forced induction, high compression, or aggressive aftermarket camshafts. These gears enable precise timing adjustments, allowing you to advance or retard the cam profile in one-degree increments via clear, laser-etched markings on the leading edge.

Built for the rigors of high-performance use, the gear is CNC-machined from 6061-T6 billet aluminum. The teeth are treated with a hard-anodizing process to prevent premature wear on the timing belt surface. To ensure the timing remains locked during high-RPM operation, AEM utilizes Grade-8, six-point hex bolts featuring integral washer flanges for superior load distribution and repeatable adjustments.

• CNC-machined from 6061-T6 billet aluminum for strength and weight savings
• Hard-anodized belt surface for maximum durability against belt wear
• Laser-etched markings allow for accurate 1-degree timing adjustments
• High-strength Grade-8 hex bolts with integral washers for secure clamping
• Ideal for engines with forced induction or competition camshafts
• Manufacturer Part Number: 23-804BK

Fits select 1988-2006 Acura, Honda, Mitsubishi, Chrysler, Dodge, Eagle, and Plymouth models.

The AEM Tru-Time Adjustable Camshaft Gear (23-802BK) provides the precision needed to optimize engine performance across a wide range of modifications. Whether your engine is milled, turbocharged, or running high-compression pistons with aftermarket cams, these gears allow you to advance or retard cam timing in one-degree increments to find the ideal power band. Each gear features true laser-etched markings on the leading edge for accurate, repeatable adjustments.

Constructed for professional-grade durability, the gear is CNC-machined from 6061-T6 billet aluminum. The belt surface is hard-anodized to prevent premature wear, while the Grade-8 six-point hex bolts include integral washer flanges for superior load distribution and secure clamping during repeated adjustments.

• CNC-machined 6061-T6 billet aluminum construction
• Hard-anodized belt surface for long-term wear resistance
• Laser-etched markings for precise 1-degree timing adjustments
• Grade-8 hex bolts with integral washer flanges for maximum load distribution
• Essential for milled heads, forced induction, or high-compression builds
• Recommended cam gear settings included
• Manufactured and assembled in the USA
• Manufacturer Part Number: 23-802BK

Fits 1993-2001 Honda Prelude (S, SE, Si, Si 4WS, VTEC, Base, and Type SH).

AEM Tru-Time Adjustable Camshaft Gears allow tuners to optimize horsepower and torque without requiring a camshaft change. These gears are essential for engines with milled heads, forced induction, high compression, or aftermarket competition cams where precise timing is critical. Users can advance or retard cam profiles in one-degree increments using high-visibility, laser-etched markings on the leading edge of the gear.

Each gear is CNC-machined from 6061-T6 billet aluminum for a lightweight, durable construction. The belt surface is hard-anodized to prevent premature wear on the timing belt, while Grade-8 six-point hex bolts with integral washer flanges provide secure load distribution during repeated adjustments.

• CNC-machined 6061-T6 billet aluminum construction
• True laser-etched markings for accurate 1-degree timing adjustments
• Hard-anodized gear teeth for maximum belt life
• High-strength Grade-8 hex bolts with integral washer flanges
• Ideal for matching cam timing to specific engine tuning states
• Manufacturer Part Number: 23-801BK

Fits 1988-1997 Honda Civic, CRX, and del Sol models (DX, EX, LX, RT 4WD, Si, VX, S, and HF).

AEM Tru-Time Adjustable Camshaft Gears allow you to extract maximum horsepower and torque from your engine without a camshaft swap. These gears are essential for engines with milled heads, forced induction, high-compression builds, or aftermarket competition cams where precise timing is critical to performance. By advancing or retarding the cam profile in one-degree increments using true laser-etched markings, you can perfectly sync your cam timing to your specific tuning state.

Built for durability and precision, these gears are CNC-machined from 6061-T6 billet aluminum. The belt surface is hard-anodized—a process lab-tested as the hardest in the industry—to prevent premature wear on the timing belt teeth. Each gear utilizes high-strength Grade-8, six-point hex bolts with integral washer flanges to distribute load evenly and withstand repeated adjustments during dyno sessions or track-side tuning.

• CNC-machined from lightweight 6061-T6 billet aluminum
• Hard-anodized gear teeth for superior belt life and durability
• Laser-etched markings on the leading edge for accurate 1-degree adjustments
• Grade-8 six-point hex bolts with integral washer flanges for secure clamping
• Essential for optimizing power on modified or forced induction engines
• Manufacturer Part Number: 23-800BK