EVO Sportster® 1200cc Stage 1

EVO Sportster® 1200cc Stage 1

Optimize ports, machine valve seats, skim heads, compression ratio 9.6 to 9.8:1 depending on camshaft, measure heads, adjust spring rates.
 
Note: "Master Tuner" (Mapping) recommended.

Power Output: approx. 84 BHP (62 kW) &  approx. 112 Nm Torque