Original price was: $900.00.$793.99Current price is: $793.99.
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HKS Stainless Exhaust Manifold for ZN6 & ZC6 Scion FR-S / Toyota 86 / Subaru BRZ
HKS 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 approaches were tried for each vehicle to keep performance for middle rpm range and to improve horsepower at high rpm.
The stock exhaust manifold was designed by the 4-2-1 type layout for a better performance for a lower engine speed torque. Because the first catalyzer is mounted at the exhaust manifold, exhaust pulsatory motion makes the exhaust gas to pull back to the pipe at middle RPM range. It causes a loss of output by behaving as an exhaust gas recirculation.
The HKS exhaust manifold follows the same 4-2-1 type layout but making it without the catalyzer provides both more torque at middle RPM range and more peak power for high RPM. It’s very easy to drive and follow the acceleration well at middle RPM. And at a high RPM, it has much more power than the stock and feels clean of the NA’s high RPM driving characteristic.
If you want to change the Exhaust Manifold (no catalyzer), the “Engine check” lamp will be on because of the first catalyzer will be eliminated. HKS’ engineers have checked the drive performance for fail-safe of engine check and found no problem. So depending on the situation, muffler & exhaust manifold or muffler & front pipe will be the options.
Main material is SUS304 for better performance at circuit use.