Sound Insert with Spark Arrestor DB @ Idle 90
This R1 exhaust system was developed using the same technology that has powered Monster Energy Graves Yamaha riders to 7 consecutive Moto America / AMA Superbike championships along with numerous 600cc titles
Advanced design ensures lightning-quick throttle response
12V (1156- and 1157-style)
Specially engineered internal metal baffle eliminates the chance of a spark leaving the exhaust system
DYNOJET Jet Kit - Kawasaki KVF650 Brute Force Q219 Pseudo Muffler for Road Rage II Mega Power System Sound Insert with Spark ArrestorStage 1: stock engine filters, stock modified pipes; about a 5% power increase Stage 1: stock engine filters, stock modified pipes; about a 5% power increase Stage 2: stock mild modified engine, stock modified pipes, stock modified filters; about an 8% power increase Stage 3: stock mild modified engine, stock modified pipes, individual air filters; driveability may be compromised, N A for some motors; about a 10 15% power increase Stage 7: race only,