Dynojet Motorcycle Jet Kits

Dynojet Stage 1 Jet Kits
Intended for motorcycles with a stock engine using the stock air box, air filter and stock pipe. Stage 1 kits are fully adjustable to allow the use of a well designed aftermarket pipes and stock replacement air filters like K&N. Stage 1 kits are designed to improve throttle response and drivability and in most cases power increases of approximately 5% throughout the entire power range can be achieved.

Dynojet Stage 2 Jet Kits
Intended for motorcycles with a stock or mildly tuned engine using a well designed aftermarket pipe with a modified air box and a stock replacement air filter. Stage 2 kits are designed for applications where individual filters cannot be installed and for applications where air box modification improves the engine's performance. In most cases power increases of approximately 8% can be achieved.


Dynojet Stage 3 Jet Kits
Intended for motorcycles with stock or mildly tuned engines using a well designed aftermarket pipe and individual air filters. In most cases power increases of 10-15% can be achieved. However drivability may be compromised particularly with short stroke, high rpm motors. On some modern engine and air box designs, individual filters and proper jetting offer no performance improvement yet compromise drivability, in such cases stage 3 kits are not available.

Dynojet Stage 7 Jet Kits
Intended for race only use or for special applications. Stage 7 kits are designed to optimize jetting for a given tuning specification or racing conditions.