Kooks 2019 GM Series Truck 6.2L 1.75in x 3in SS Headers & 3in x 3.5in ULTRA GREEN SS Catted Y-Pipe

For GM truck owners running the 6.2L V8, this Kooks header and Y-pipe combo (part #2863H300) is a complete bolt-on exhaust upgrade from the engine to the factory cat-back -- and the best part is it requires no tune. That is a rare claim in the long tube header world, and Kooks backs it up with their Ultra-GREEN catalytic converter technology.

What is in the Kit

• Long tube headers -- 1-3/4in primaries flowing into 3in collectors, built from T304 stainless steel

• Ultra-GREEN catted Y-pipe -- 3in inlet to 3-1/2in (OEM) outlet, connecting directly to the factory cat-back exhaust

• Gaskets and bolt kit -- everything you need for installation is included

No Tune Required

Kooks specifically engineered this kit to work with the factory ECU calibration. The Ultra-GREEN catalytic converters are high-capacity units designed to keep the emissions system happy, so you will not trigger check engine lights or need aftermarket tuning software. Just install the kit and drive.

Broad GM Truck Coverage

This kit fits the full lineup of 2019-2025 GM 1500-series trucks and SUVs with the 6.2L V8:

• Chevrolet -- Silverado 1500, Suburban

• GMC -- Sierra 1500, Yukon, Yukon XL

• Cadillac -- Escalade (2021+)

Built to Last

T304 stainless steel is the aerospace standard, and Kooks uses it throughout this kit -- headers, collectors, and Y-pipe. It resists corrosion far better than mild steel or 409 stainless, which is important for a truck that may see salt, mud, and years of daily driving. Kooks backs it with a limited lifetime warranty to the original purchaser.

Every piece is dyno-tested, race-tested, and handcrafted in the USA. Not CARB approved. Proposition 65 warning applies.