Kooks 3521H440 1 7/8 in. Headers and H.O. GREEN Connection Kit 2021-2025 RAM 1500 TRX 6.2L HEMI

Black Ops Auto Works carries one of the largest selections of performance exhaust systems available online, with 7,700+ products covering cat-back exhausts, axle-back exhausts, turbo-back systems, downpipes, headers, mid-pipes, X-pipes, H-pipes, mufflers, resonators, catalytic converters, exhaust tips, and every component in between. Whether you're building a street car, a daily driver, a diesel truck, or a track build, the right exhaust upgrade is here. Shop by Exhaust System Type Cat-Back Exhaust Systems: The most popular performance exhaust upgrade. Replaces everything from the catalytic converter back for improved sound, better flow, and premium tip styling. Available in single exit, dual exit, and quad exit configurations. Axle-Back Exhaust Systems: A simpler bolt-on that replaces the rear section from the axle back. Best for drivers who want an improved exhaust note and cleaner tip appearance without a full system swap. Headers and Manifolds: Long tube headers and shorty h...

Performance headers and exhaust manifolds are among the most effective bolt-on upgrades for improving exhaust scavenging, increasing horsepower, and giving your engine a more aggressive exhaust note. Whether you're building a street machine, a track car, or a diesel work truck, the right header or manifold set unlocks real performance gains across the RPM range. Popular Upgrades Top-selling header and manifold products include long-tube headers from BBK and Kooks for V8 muscle cars and trucks, stainless steel shorty headers from Stainless Works for tight engine bay fitments, high-flow cast iron exhaust manifolds for diesel platforms from BD Diesel and ATS Diesel, and turbo manifolds from aFe Power and Invidia for forced-induction builds requiring optimized turbo positioning. What is the difference between long-tube and shorty headers? Long-tube headers route exhaust primaries farther down the chassis before merging at a collector, which improves mid-range and top-end power but requi...

Shop Kooks Headers and Kooks Exhaust products at Black Ops Auto Works for premium American-made exhaust systems, long tube headers, shorty headers, cat-back exhaust systems, axle-back exhaust systems, connection pipes, catted connection pipes, and performance exhaust components built for street, strip, and track applications. With decades of motorsports heritage, Kooks is trusted by enthusiasts, engine builders, and racers looking for high-quality stainless steel exhaust upgrades with proven fitment and performance. American-Made Kooks Performance Exhaust Founded in 1962, Kooks Headers has earned a strong reputation for USA-made exhaust performance, precision craftsmanship, and race-proven durability. Kooks products are manufactured using premium stainless steel and designed to support improved exhaust flow, aggressive sound, and reliable long-term performance on high-horsepower builds. Shop Kooks Headers & Exhaust Parts by Category Browse Kooks exhaust components and performanc...

The Largest Collection of Ram Parts and Accessories Shop RAM TRX parts, RAM 1500 TRX accessories, performance upgrades, off-road parts, suspension components, exhaust systems, lighting kits, carbon fiber parts, brake upgrades, wheels, tires, badges, bed accessories, and exterior styling upgrades at Black Ops Auto Works. This collection is built for 2021-2025 RAM 1500 TRX owners who want more capability, durability, performance, protection, and aggressive styling from their supercharged truck. Powered by the supercharged 6.2L HEMI V8, the RAM TRX is one of the most capable factory performance trucks ever built. Whether you are building a street-focused TRX, an off-road desert truck, a show build, a daily-driven performance truck, or a fully customized RAM 1500 TRX, this collection includes vehicle-specific upgrades designed for fitment, function, and standout appearance. RAM TRX Parts from Top Brands Shop trusted RAM TRX performance brands available in our catalog, including: Black...