4-1 headers are designed so that all 4 exhaust pipes merge into one

- Total Diameter 390mm

The Skunk2 composite velocity stacks are a great addition for any application looking to maximize air flow

7i LS (D17A8 - EM2)

Mishimoto Radiatore in alluminio Honda NSX 90-05 Interni 4-1 headers are designed soThe Mishimoto performance aluminum radiator for the Acura NSX is the ideal upgrade to the stock NSX radiator. Designed and specifically engineered to maximize cooling efficiency by up to 30%, boost engine functions and protect your car from overheating. Whether you use your Acura for daily driving or take it to the track, many people overlook the importance of installing an upgraded radiator in their engine. A stock radiator can not handle the heat