HKS Stainless Exhaust Manifold AP1 Tonneau Covers Direct bolt-on replacement at factory

Direct bolt-on replacement at factory location—no modifications needed

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High-flow resonator for improved performance and tone

HKS Stainless Exhaust Manifold AP1 Tonneau Covers Direct bolt-on replacement at factoryHKS Exhaust technology, which is know how of long time development, targets to pull out 100% engine performance with the exhaust manifold. A lot of different approach were tried for each vehicle to keep performance for middle rpm range and to improve horsepower at high rpm. This exhaust manifold does not sacrifice the torque characteristics at low to mid speed range. Advantage of 4 2 1 Straight Junction (Super Header) Exhaust manifold is twisted at