Grams Performance Fuel Injection Throttle Body

Grams Performance Drive-By-Wire Throttle Bodies: Engineered for Airflow, Built for the Track

When it comes to unlocking the full potential of a high-performance engine, few upgrades are as impactful as a properly sized throttle body. Grams Performance has built its reputation on exactly this principle, applying nearly two decades of motorsport engineering to produce fuel injection throttle bodies that deliver measurable gains in airflow, throttle response, and overall drivability.

Rooted in racing, refined through engineering — Grams' active involvement in various forms of motorsports through technical partnerships, as well as through their own championship-winning race cars, provides them with the data necessary to produce high-performance parts utilizing innovative designs, advanced metal alloys, cutting-edge manufacturing methods, and stringent quality-control measures. That pedigree is built directly into every throttle body they produce.

All-New Components, Not Remanufactured

One of the key differentiators in the Grams Performance throttle body lineup is that unlike remanufactured units, the Grams throttle body comes with all brand-new components for reliable performance. Each throttle body includes all new components including a CNC machined billet 6061-T6 aluminum housing with a precision-honed oversized bore, a responsive high-torque servo motor, and a proprietary Non-Contact Hall Effect TPS sensor. To ensure the best performance, throttle response, and drive-ability, each TPS sensor is calibrated to meet the specific requirements of the vehicle's engine management system.

Plug-and-Play Fitment Across Popular Platforms

Grams Performance throttle bodies are engineered as true drop-in upgrades. The Grams throttle body is a Plug-n-Play direct OEM replacement that does NOT require swapping electric motors, wiring, or mounting adapters. This design philosophy means enthusiasts can bolt on a meaningful performance upgrade without extensive modification or custom wiring work.

The product lineup spans several of today's most popular performance platforms:

• The Grams Performance 85mm Drive-By-Wire Throttle Body for 15–17 5.0L Ford Mustangs is the perfect upgrade for the restrictive 80mm factory unit , delivering a 15% increase in airflow over the stock 80mm throttle body.
• The Grams Performance 90mm Drive-By-Wire Throttle Body for the 2015–2017 5.0L V8 Coyote Ford Mustang and F-Series truck upgrades the restrictive 80mm factory unit.
• The Grams Performance 72mm Drive-By-Wire Throttle Body for the Scion FRS, Subaru BRZ, and Toyota FT86 is designed to replace the restrictive factory unit.
• The Grams Performance 70mm Drive-By-Wire Throttle Body for MKIV VW replaces the restrictive factory unit , offering a 60% increase in airflow over the stock 57mm throttle body.

Designed In-House, Proven on the Dyno and the Street

Grams Performance and Design's products are planned and designed in-house using the latest computer simulation and modeling techniques, followed by careful testing in controlled laboratory environments using state-of-the-art equipment. Each product is then subjected to rigorous dyno, street, and race track testing to ensure proper performance in the most extreme conditions. This commitment to validation — not just calculation — is what sets Grams apart from generic throttle body suppliers.

Whether you're building a street-tuned daily driver or a dedicated competition car, Grams Performance throttle bodies offer a technically sound, application-specific upgrade. Explore the full Grams Performance catalog or browse all fuel injection throttle bodies to find the right fitment for your build.