Omix Exhaust Manifold 4.0L 91-99 Jeep Models

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...

Discover the OMIX Collection: A curated selection of Jeep® parts and accessories dedicated to preserving the legendary history of Jeep® while providing innovative solutions for enthusiasts. Our Mission At OMIX, we believe in two core principles: Preserving the Jeep® Heritage: We strive to maintain the rich legacy of Jeep® by collecting significant vehicles and parts. Continuous Product Development: Access to historical Jeep® models allows our engineering team to create high-quality replacement parts and accessories.   The Birth of the Collection After years of successful distribution of Jeep® parts, Azadi recognized the need to: Gather original or near-original Jeep® vehicles. Provide a foundation for ongoing product innovation. A pivotal moment occurred when Azadi discovered a unique selection of historical vehicles from Mark Smith, founder of Jeep® Jamboree USA, including: Three early prototypes Significant models that shaped the Jeep® brand   Continuous Innovation With ...