The Grams Performance G2-99-0030 is a professional-grade 0-30 PSI (2.06 bar) fuel pressure gauge designed for high-vibration automotive environments. This gauge is glycerin-filled to effectively dampen needle flutter, ensuring stable and accurate readings at a glance even in high-performance or high-RPM applications where engine harmonics typically make standard gauges difficult to read.

Constructed for longevity and clarity, the G2-99-0030 features a matte black stainless steel case and bezel paired with a shatterproof polycarbonate lens. The internal brass and stainless steel components provide corrosion resistance for reliable service life. With its compact 1.5-inch face and standard 1/8-inch NPT fitting, it easily integrates into fuel rails or aftermarket fuel pressure regulators.

• Part Number: G2-99-0030
• Pressure Range: 0-30 PSI (2.06 bar)
• Face Diameter: 1.5 in. (38.1mm)
• Fitting Size: 1/8 in. (3.175mm) NPT
• Housing Material: Matte Black Stainless Steel
• Internal Construction: Stainless Steel and Brass
• Lens Material: Shatterproof Polycarbonate
• Vibration Control: Glycerin Filled

The Grams Performance Top Short 11mm Fuel Injector Adapter Hat (MPN: G2-99-0011) provides a precision solution for adapting fuel injectors to different fuel rail configurations. This adapter is specifically designed to convert a standard 14mm injector top to an 11mm top, allowing for compatibility with narrower fuel rail bores.

Precision-machined from high-grade aluminum, this top hat ensures a secure, leak-free seal for your fuel system. The design adds an effective extension length of 12.5mm, making it an essential component when fitting shorter injectors into fuel rail setups that require additional height.

• Material: CNC-machined aluminum
• Application: Converts 14mm female top to 11mm male top
• Male End: 11mm O-ring fitment
• Female End: 14mm O-ring fitment
• Extension Length: 12.5mm
• Overall Length: 24mm
• Manufacturer Part Number: G2-99-0011

Fits select 1986-2009 Honda and Acura vehicles with B, D, F, or H-series engines (excluding D17), including Civic, Integra, S2000, Prelude, and Accord.

Grams Performance high-impedance fuel injectors are engineered to provide precise fuel metering and superior atomization for high-output engines. Each G2-1150-0500 injector set is individually balanced, flow-tested, and dynamically matched within 1% of each other. This stringent characterization ensures unmatched cylinder-to-cylinder consistency, which is critical for maintaining optimal idle quality, throttle response, and engine safety even at low pulse widths.

Built for versatility and durability, these injectors feature stainless steel internals, making them fully compatible with all fuels, including oxygenated fuels with MTBE and racing blends like E85, FTW, Q16, M5, and C45. The ultra-fast solenoids provide a linear response curve across a wide range of operating conditions, accurately delivering fuel at high pressures and short pulse widths.

• Manufacturer Part Number: G2-1150-0500
• Flow Rate: 1150cc
• Design: High-impedance (saturated)
• Internals: Corrosion-resistant stainless steel
• Testing: Flow matched within 1% variation
• Fuel Compatibility: All fuels including MTBE and E85
• Quantity: Set of 4 balanced injectors

Protect your high-performance fuel system from harmful contaminants with the Grams Performance 20 Micron Fuel Filter. This inline filter is engineered to provide superior filtration while maintaining the high flow rates required by modified and racing engines. By capturing particulates as small as 20 microns, it serves as a critical line of defense for your fuel injectors and engine internals.

Built for durability and precision, this filter features -6AN fittings for a secure, leak-free connection to your fuel lines. Whether you are upgrading your daily driver or building a dedicated track car, the Grams Performance filter ensures your fueling remains clean and consistent under high demand.

• Filtration Rating: 20 Micron
• Fitting Size: -6AN
• Filter Type: Inline
• Manufacturer Part Number: G60-99-0026

Engineered for high-performance naturally aspirated and forced induction EFI systems, the Grams Performance G51-99-0440 is a high-flow, ethanol-compatible fuel pump. This universal kit serves as a direct technical replacement for the industry-standard Bosch 044 pump, featuring identical M18x1.5 inlet and M12x1.5 outlet female threads to integrate seamlessly into existing plumbing setups.

• High Flow Rate: Delivers 355LPH at standard operating voltages and a free-flow rate of 712 lb./hr. at 16V DC.
• Bosch 044 Form Factor: Standardized 18mm inlet and 12mm outlet threads for compatibility with common AN fittings.
• Ethanol Compatible: Specifically designed to withstand the corrosive properties of E85 and other alcohol-based fuels.
• Robust Construction: Built with premium materials and stringent quality control to ensure reliable fuel delivery under high-pressure demands.
• Manufacturer Part Number: G51-99-0440

Upgrade your vehicle's fueling capacity with the Grams Performance 320LPH In-Tank Fuel Pump. Engineered for high-performance naturally aspirated and forced induction applications, this pump provides the consistent fuel volume required for modified engines. It features a quiet and reliable turbine impeller design that reduces noise while maintaining high flow rates under pressure.

Constructed with premium materials and stringent quality control, this universal kit is designed for application-specific in-tank mounting. It is fully compatible with all fuel types, including gasoline and ethanol blends (E85). This kit includes the necessary components to replace standard high-flow or fixed-displacement fuel pumps for improved reliability and performance.

• Part Number: G51-99-0320
• Flow Rate: 320 LPH (490 lbs/hr at 45 PSI)
• Outlet Size: 0.47 in. (11.9mm)
• Internal Design: Quiet turbine impeller
• Fuel Compatibility: All fuel types (Gasoline, E85, etc.)
• Application: In-tank mounting

The Grams Performance 265LPH Universal In-Tank Fuel Pump is engineered to meet the demands of high-performance naturally aspirated and forced induction engines. Designed as a reliable replacement for compact in-tank pumps, this unit utilizes a quiet turbine impeller for consistent fuel delivery and long-term durability across various fuel types.

• Flow Rate: 265 LPH (448 lbs/hr at 45 PSI)
• Outlet Size: 0.35 in (8.9mm)
• Fuel Compatibility: Safe for use with all fuel types, including gasoline and ethanol blends
• Impeller Design: High-efficiency turbine impeller for quiet and reliable operation
• Fitment: Universal in-tank application for compact pump replacements
• Manufacturer Part Number: G51-99-0265

Fits select 2005-2020 Chrysler 300 and Aspen; Dodge Challenger, Charger, Durango, Magnum, and Ram 1500-3500; and Ram 1500-3500 (5.7L, 6.1L, 6.2L, and 6.4L Hemi engines).

Engineered for high-horsepower modern muscle applications, the Grams Performance & Design billet aluminum fuel rail system is a critical upgrade for your high-performance fuel delivery system. These rails are CNC-machined from 6061 billet aluminum for superior strength and feature a large .66-inch internal bore to provide the volume necessary for builds exceeding 2000hp. Designed for direct fitment, they offer OE drop-in compatibility and utilize -8 ORB ports to ensure consistent fuel pressure across all injectors.

• Precision machined from Billet 6061 Aluminum
• Large .66 in. internal bore for maximum fuel volume
• Supports 2000hp+ applications
• Equipped with -8 ORB ports for consistent pressure delivery
• Raw aluminum finish
• Quick-connect OE drop-in compatibility
• Manufacturer Part Number: G50-03-1010

Monitor your fuel system with precision using the Grams Performance Universal Fuel Pressure Gauge. Designed for high-performance applications, this 1.5-inch (38.1mm) gauge features a glycerin-filled internal to dampen needle vibration, ensuring accurate readings even in high-vibration engine environments. The rugged construction utilizes a matte black stainless steel case and bezel paired with brass internals for long-term durability.

• Measurement Range: 0-120 PSI (0-8.27 bar)
• Fitting: 1/8 in. (3.175mm) NPT male
• Case Material: Matte black stainless steel
• Internal Construction: Stainless steel and brass
• Lens: Shatterproof polycarbonate
• Face Diameter: 1.5 in. (38.1mm)
• Manufacturer Part Number: G2-99-1200W

This gauge is an essential tool for setting and monitoring fuel pressure at the regulator, providing a clear, high-contrast white face for visibility at a glance. It threads directly into any standard 1/8" NPT fuel pressure port or regulator housing.

Ensure a precise fit for your high-performance fuel system with the Grams Performance Top Tall 14mm Adapter Hat (G2-99-1014). This CNC-machined aluminum component is engineered specifically to extend the height of 2200cc fuel injectors, allowing them to interface correctly with fuel rails and intake manifolds requiring a taller profile.

This adapter features a 14mm female O-ring end to receive the injector and a 14mm male O-ring end for the fuel rail, ensuring a leak-free seal under high-pressure conditions. With a 25mm extension length and a 38mm overall height, it is an essential component for custom fuel rail installations and performance tuning.

• Material: CNC-Machined Aluminum
• Overall Length: 38 mm
• Extension Length: 25 mm
• Male End: 14 mm with O-ring
• Female End: 14 mm with O-ring
• Compatibility: Primarily used with 2200cc injectors
• Part Number: G2-99-1014

Fits select 2002-2009 Acura RSX, TSX, and Honda S2000 models. These Grams Performance 750cc fuel injectors provide the precise fuel delivery required for high-output K-Series and F-Series engines.

Engineered for consistency and performance, these injectors utilize high-impedance circuitry to remain compatible with most factory and aftermarket ECUs. Each injector is manufactured using premium materials and advanced techniques to ensure tight tolerances and reliable flow under high-demand conditions. This set of four is a direct-fit solution for enthusiasts upgrading their forced induction or high-compression naturally aspirated setups.

• Manufacturer Part Number: G2-0750-0501
• Flow Rate: 750cc/min
• Design: High Impedance (Saturated)
• Quantity: Matched set of 4 injectors
• Compatibility: Replaces OE injectors on select 2002-2009 Honda and Acura applications

Fits select 1986-2009 Honda and Acura models, including the Integra, Civic, Accord, Prelude, and S2000 equipped with B, D, F, and H-series engines (excludes D17).

Grams Performance high-performance fuel injectors are engineered to provide precise fuel delivery for modified street and track applications. These 750cc injectors utilize a high-impedance design, making them compatible with most factory and aftermarket ECUs without the need for a resistor box. Each injector is manufactured using premium materials and advanced techniques to ensure consistent flow rates and spray patterns across the set.

• Flow Rate: 750cc/min
• Configuration: High-impedance (saturated) design
• Quantity: Set of 4 matched injectors
• Engine Compatibility: Honda B, D, F, and H-Series (Excluding D17)
• Manufacturer Part Number: G2-0750-0500

Each set is subjected to stringent quality control procedures to ensure reliable performance under high-duty cycles, making them an essential upgrade for forced induction or high-compression naturally aspirated builds.

Fits select 1990-2005 Mazda Miata models including Base, LS, SE, and Mazdaspeed (1.8L).

Grams Performance 550cc fuel injectors are engineered to provide the precise fuel delivery required for high-performance Mazda Miata builds. Designed for consistency and reliability, these high impedance injectors are an ideal solution for forced induction or modified naturally aspirated setups. Each unit is manufactured using premium materials and advanced techniques to ensure tight tolerances and an optimal spray pattern for improved combustion efficiency.

• Flow Rate: 550cc/min
• Design: High Impedance
• Quantity: Set of 4
• Material: Premium internal components for long-term durability
• Manufacturer Part Number: G2-0550-1001

Full Vehicle Compatibility:

• 1990-1997, 1999-2005 Mazda Miata Base
• 1999 Mazda Miata 10th Anniversary
• 1993 Mazda Miata LE
• 2000-2005 Mazda Miata LS
• 1994-1997 Mazda Miata M Edition
• 2004-2005 Mazda Miata Mazdaspeed
• 1991, 2000-2003 Mazda Miata SE
• 2003 Mazda Miata Shinsen
• 1997 Mazda Miata STO

Fits select 2006-2020 Acura, Honda, Scion, Subaru, and Toyota models (including TSX, Civic Si, S2000, BRZ, and 86).

The Grams Performance & Design Silicone Reinforced Reducer Coupler is engineered specifically for vehicles equipped with aftermarket cold air intake systems looking to upgrade to the Grams 72mm Drive-By-Wire (DBW) Throttle Body. This reducer provides a seamless transition from a 3.15-inch (80mm) throttle body inlet to a 3.00-inch intake pipe, eliminating the need to dangerously over-stretch standard couplers during installation.

Constructed from high-grade, fiber-reinforced silicone, this coupler is built to withstand the heat and pressure of high-performance engine bays while maintaining a secure, leak-free seal.

• MPN: G09-99-3130
• Dimensions: 3.15 in. to 3.00 in. Reducer
• Application: Fits Grams 72mm DBW Throttle Bodies
• Material: Multi-layer fiber-reinforced silicone
• Fitment Note: Simplifies installation for Scion FR-S, Subaru BRZ, Toyota 86, and 8th/9th Gen Civic Si intake systems

Fits 2013-2020 Scion FR-S, Subaru BRZ, and Toyota 86.

The Grams Performance DBW (Drive-By-Wire) Electronic Throttle Body is a critical upgrade for modified engines requiring increased airflow to maximize power. This unit features a precision-honed, oversized 72mm bore, providing a 50% increase in airflow over the factory 64mm throttle body. Designed for both high-output naturally aspirated builds and forced induction applications, it ensures your engine isn't choked at high RPM.

Each unit is CNC machined from 6061-T6 billet aluminum for maximum durability and features a non-contact Hall Effect TPS for a more reliable, optimized response curve. The high-precision servo motor and aluminum throttle plate provide consistent performance under extreme conditions. This kit is designed for a straightforward installation and includes the necessary wiring harness adapter.

• Manufacturer Part Number: G09-12-0100
• Oversized 72mm bore for 50% more airflow than stock (64mm)
• CNC machined 6061-T6 billet aluminum housing
• Factory programmable non-contact Hall Effect TPS
• High-precision servo motor and aluminum throttle plate
• Optimized TPS response curve
• Wiring harness adapter included for easy installation

Fits 2002-2003 Volkswagen Golf GTI (1.8T) and 2003 GTI 20th Anniversary models.

A larger throttle body is essential for maximizing power on modified 1.8T engines with increased airflow requirements. This Grams Performance and Design MKIV throttle body features a precision-machined 70mm bore, providing a significant increase in flow capacity over the factory unit. This upgrade is particularly effective for heavily modified naturally aspirated builds and forced induction applications where the stock throttle body becomes a bottleneck.

• Bore Size: 70mm
• Operation: Drive-By-Wire (DBW)
• Finish: Black
• Increased airflow capacity for high-horsepower builds
• Maintains factory-style electronic control integration
• Manufacturer Part Number: G09-09-0700

Fits 2004-2006 Audi A4 and A4 Quattro models (2.0T).

The Grams Performance 70mm Drive-By-Wire (DBW) Throttle Body is a high-performance upgrade designed to provide a substantial increase in airflow over the restrictive factory unit. Each unit is CNC machined from 6061-T6 billet aluminum and features a precision-honed 70mm bore, delivering the volume necessary for tuned or modified 2.0T engines. This throttle body is a true plug-and-play solution that requires no adapters, utilizing the factory electrical connections for a seamless installation.

Equipped with a high-torque precision servo motor and a non-contact Hall Effect Throttle Position Sensor (TPS), this unit offers superior reliability and an optimized response curve. The programmable TPS ensures accurate feedback to the ECU, maintaining smooth operation and crisp throttle transitions.

• Bore Size: 70mm ID
• Material: CNC machined 6061-T6 billet aluminum
• Finish: Black anodized
• Integrated high-torque precision servo motor
• Factory programmable non-contact Hall Effect TPS
• Durable aluminum throttle plate
• Plug-and-play installation; no wiring adapters needed
• Manufacturer Part Number: G09-09-0070