Check your local laws and the manufacturers information
12V horns emit loud (113 dB) signal
Includes 3" springs and all mounting hardware
the header has larger tubes to improve airflow and increase performance
Machined from Billet Aluminum with a Boyesen one-way reed valve to vent the excessive crankcase pressure
DYNOJET Jet Kit - Suzuki GSXR1100, Katana 3123 Chrome Steel Banjo Fitting Check your local laws andStage 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,