Grams Performance 1600cc TC/XB/ 1ZZ/ 2ZZ/ 3S-GTE/ 4AGE/ 5SFE INJECTOR KIT

If you're looking to significantly upgrade the fuel system on your 2003-2004 Toyota Corolla, especially for performance applications, these Grams Performance 1600cc fuel injectors are a solid choice. These injectors are designed to accurately deliver more fuel than stock, which is crucial when you're increasing engine power through modifications like forced induction or a more aggressive camshaft profile. They play a vital role in ensuring your engine gets the right amount of fuel for optimal combustion and performance.

Grams Performance builds these injectors with stainless steel internals, making them compatible with a wide variety of fuels, including high-ethanol blends and racing fuels. Each injector in the set is individually balanced and then flow-tested to ensure they all perform within one percent of each other. This meticulous matching process results in unmatched cylinder-to-cylinder consistency, which helps maintain smooth idle quality and precise fuel metering, even at very low fuel pulse widths. The solenoids are designed for ultra-fast and precise operation, allowing for accurate fuel delivery across a broad range of engine conditions and pressures.

This kit includes four 1600cc injectors, each with an 11mm top adapter and a DENSO lower cushion bottom. You'll need to use the included EV1 pigtails to splice into your existing wiring harness, and a fuel rail spacer is also required for proper installation. Please note that these injectors are not CARB approved and cannot be shipped to California. It's always a good idea to consult with your tuner to ensure these injectors are the right match for your specific engine build and tuning strategy.