The Kooks 1371H420 1-7/8-inch Header and Catted Connection Kit transforms the 2021 and 2025 Ford F-150 5.0L Coyote V8 by replacing restrictive factory manifolds with long-tube headers and high-flow catted Y-pipes that unlock over 60 horsepower and 50 lb-ft of torque to the rear wheels, while preserving emissions compliance for daily driving.
Handcrafted from T304 aircraft-quality stainless steel, the equal-length primaries and merged collectors optimize exhaust scavenging across the full RPM range, delivering crisp throttle response and a deep, aggressive exhaust note without drone on the highway.
The 3-inch catted connection pipes integrate seamlessly with the OEM mid-section, supporting up to 850 HP for tuned trucks or heavy towing, and feature precision laser-cut 3/8-inch flanges to eliminate warping under heat cycles. For F-150 owners seeking a bolt-on upgrade that balances power gains, sound refinement, and legal street use, this kit provides the engineered path to maximize the Coyote's potential in work, play, or track scenarios.
Warranty: Limited lifetime to original purchaser on materials and construction.
| Year | Make | Model | Submodel/Engine |
|---|---|---|---|
| 2021 and 2025 | Ford | F-150 | XL, XLT, Lariat 5.0L Coyote V8 (4V) |
| 2021 and 2025 | Ford | F-150 | King Ranch, Platinum 5.0L Coyote V8 (4V) |
| 2021 and 2025 | Ford | F-150 | Limited 5.0L Coyote V8 (4V) |
Note: Fits standard cab, super cab, and super crew configurations with 5.0L V8. Excludes Tremor, Raptor, and hybrid variants.
Total Package Weight: 65 lbs | Shipping Dimensions: 48" L x 24" W x 18" H (crated for freight shipment)
Performance exhaust systems for cars, trucks, SUVs, and Jeeps are stocked at Black Ops Auto Works. Shop cat-back systems, axle-back systems, turbo-back systems, headers, downpipes, mid-pipes, mufflers, resonators, catalytic converters, exhaust tips, exhaust valve controllers, oxygen sensors, exhaust brakes, and motorcycle and powersports exhausts for Mustang, Camaro, Challenger, Corvette, Silverado, and Super Duty platforms. Every product is filterable by exhaust position, material, pipe diameter, and vehicle year, make, model, and trim so the correct fitment ships the first time. Black Ops Auto Works carries 7,441 exhaust SKUs across every position of the exhaust system. What This Category Covers Exhaust upgrades change sound, appearance, and in some cases power. Exhaust fitment depends on engine, drivetrain, and factory exit position, so confirm the exact platform before ordering any exhaust component. Exhaust Position Cat-back, axle-back, turbo-back, and header-back systems e...
View Exhaust Systems Products
Performance headers and exhaust manifolds for gas and diesel platforms are stocked at Black Ops Auto Works. Shop long-tube headers, shorty headers, turbo manifolds, and diesel exhaust manifolds for Mustang, Camaro, Ram HEMI trucks, Ford Powerstroke, Dodge Cummins, and GM Duramax platforms. Every product is filterable by tube diameter, header length, and vehicle year, make, model, and engine so the correct fitment ships the first time. Black Ops Auto Works carries 459 header and manifold SKUs across gas and diesel applications. What This Category Covers 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 are 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. Long-Tube Versus Shorty Headers Long-tube headers route exhaust prim...
View Headers & Manifolds Products
Kooks Exhaust parts and accessories for American muscle cars and performance trucks are stocked at Black Ops Auto Works. Shop stainless steel long tube headers, shorty headers, catted connection pipes, mid pipes, X-pipes, H-pipes, cat-back systems, axle-back systems, resonator deletes, GREEN catalytic converters, O2 extensions, clamps and header hardware for Mustang, Camaro, Corvette, Challenger, Charger, Silverado, F-150 and Ram HEMI builds. Every product is filterable by year, make, model, trim, engine and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 174 Kooks exhaust SKUs across vehicle-specific fitment, performance upgrades, replacement parts, installation hardware and custom build needs. What This Collection Covers Kooks builds vehicle-specific stainless steel exhaust components for naturally aspirated, supercharged and turbocharged V8 street cars, track cars and HD truck builds. The range includes complete header-to-tailpipe paths as we...
View Kooks Exhaust Products
