spark force 3 4 exhaust system for yamaha temp1421 even with a stock engine

even with a stock engine

Adjustable snapback closure for a comfortable fit

Affordable protection against rain

Compatible with the later model Breakout boxes with a bar-code decal on the rear side only

Red in the middle and amber in the ring

spark force 3 4 exhaust system for yamaha temp1421 even with a stock engineSpark Force 3 4 Exhaust System for Yamaha Take your Yamaha's performance to the next level with the Spark Force 3 4 Exhaust System. Developed for top racing teams and tested on world famous tracks, this system delivers maximum power for both professional and amateur riders. You get the perfect balance of weight reduction, performance and pure racing sound. The 3 4 system consists of a 2in1 manifold to eliminate the catalytic converter and silencer.