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Stage 1 Kits - Intended for motorcycles with a
stock engine using the stock airbox, air filter and stock pipe.
Stage 1 kits are fully adjustable to allow the use of 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.
Stage 2 Kits - Intended for motorcycles with a stock or mildly tuned
engine using a well designed aftermarket pipe with a modified airbox
and a stock replacement air filter. Stage 2 kits are designed for
applications where individual filters cannot be installed and for
applications where airbox modifications improves the engine's
performance. In most cases power increases of approximately 8% can
be achieved.
Stage 3 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 rmp motors. On some modern engine and airbox designs,
individual filters and proper jetting offer no performance
improvement yet compromise drivability, in such cases stage 3 kits
are not available. |
