HKS STAINLESS STEEL EXHAUST MANIFOLD 2013+ FR-S (ZN6) Universal 21 φ88 2301-RT042

21 φ88 2301-RT042

5" diameter and overall discharge area is increased by 100%

740902-0016 = 1

88" OD flange with 2

maintain more constant oil temperatures via increased volume of oil and the improved cooling efficiency of the thick-walled cast aluminum construction

HKS STAINLESS STEEL EXHAUST MANIFOLD 2013+ FR-S (ZN6) Universal 21 φ88 2301-RT042Product Manual 33002 BT001 Fits: 2013+ FR S (ZN6) Size : 42. 7mm 50. 8mm 60mm Style: 4 2 1 FEATURE 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