Granatelli Motor Sports LT1/LT4/LT5 Drive-By-Wire Billet Throttle Body GMTBLT4

The Granatelli Motorsports 103mm Throttle Body, part number GMTBLT4, is an exceptional performance upgrade designed to maximize airflow and enhance throttle response in your vehicle. Crafted with precision and engineering excellence, this throttle body is built to deliver outstanding performance gains. The GMTBLT4 throttle body is specifically designed to be used with aftermarket manifolds. Its larger diameter of 103mm allows for increased airflow, resulting in improved engine efficiency and power output. With its advanced design, this throttle body optimizes air intake, providing a noticeable boost in acceleration and overall performance. The Granatelli part number GMTBLTSPC, a manifold spacer will need to be used if you are planning to pair it with the Factory Manifold. The space is designed to ensure compatibility between the throttle body and the factory manifold. The spacer guarantees proper fitment and alignment, allowing for a seamless installation and optimal performance. TUNE MAY BE REQUIRED -Proper tuning is highly recommended after installation

5.3 L models will need to run an aftermarket 6.2L style intake manifold

If you are running Factory Intake or Non- ported supercharger you will need Part Number # GMTBLTSPC

All Out Tuning in concert with Granatelli Motor Sports recently dyno tested the GMTBLT4 103mm throttle body on an otherwise stock sealed OEM LT1 engine in this 2017 Camaro w/ 8L90 on E60, Headers, Rotofab CAI, Holley Hi-Ram. The combo was first tested at a respectable 425.9 RWHP and 376.6 lb-ft using the stock OEM TB. The simple addition of the Granatelli 103mm Throttle body rewarded them with 445.7 RWHP and 393.4 lb-ft! This direct bolt on took under 20 minutes to install and yielded 20 RWHP and 17 lb-ft. All Out Tuning and Granatelli Motor Sports for the win!