The exhaust manifold is the key to the 86/BRZ power upgrade. The catalyzer on the stock manifold limits performance. The HKS catalyzer offers less resistance, which provides more power. Testing also shows that the HKS catalyzer provides a cleaner level of exhaust omissions.
Features:
The Manifold is designed with a 4-2-1 layout design to increase performance.
HKS designed the catalyzer to improve the exhaust cleaning ability. The catalyzer was also designed to be smaller and more powerful than the stock unit.
HKS designed the catalyzer to improve the exhaust cleaning ability. The catalyzer was also designed to be smaller and more powerful than the stock unit.
The 4-2-1 layout design provides less exhaust resistance, which in turn increases power for the normal to high range RPM.
Comfortable driving experience during normal range RPM acceleration.
Noticeable difference in acceleration at high RPM, adding some excitement compared to stock.
Made of SUS304 so it can be used fore circuit driving.
*After the no. 2 stock catalyzer, 02 sensor must be moved to turn off the check engine lamp. 26 hole and boss welding work is required.