Spoon N1 Exhaust System - Honda - Civic Type R FL5Specifications: Manufacturer: Spoon Reference Number: 18000 FL5 000 Type: Exhaust System Material: Stainless Steel Our product, the N1 muffler, has sufficient specs, so we actually tested it at the race to see how the sound would affect the driver in a long race. After the race, the drivers gave high marks such as that the volume was moderate enough to prevent fatigue, and that the sound quality was good enough to drive comfortably. This N1 muffler