Supertech Black Nitrided Exhaust Valves K20/K24 series Thermostats With the ALPHA 5 package

With the ALPHA 5 package installed with our in-house AMS ECU Calibration we generally see

this roll will only get worse

Disc Spring Dampers: This is the center section of the clutch disc

When performing an intake installation or in cases where your Type R has accumulated substantial mileage

25" (184mm) Twin Disc clutch and is the ultimate in twin disk performance for engines/transmissions with smaller bell-housings that are focused on drag racing

Supertech Black Nitrided Exhaust Valves K20/K24 series Thermostats With the ALPHA 5 packageFITS: 8th Gen Honda Civic 8th Gen Honda Civic Si 9th Gen Honda Civic 9th Gen Honda Civic Si Acura RSX 1st Gen Acura TSX 2nd Gen Acura TSX Supertech valves come in either a dished or flat bottom. The valves are black nitride treated coated, which reduce friction at high rpms. Specs: Head Diam: 31. 00mm (Std) Stem Diam: 5. 48mm Length: 108. 65mm Material: Black Nitrided Valve Type: Exhaust Includes all 8 exhaust valves