Motorcycle Stage Upgrade Packages (Stage 1 to 4)
Enquire on matched Stage 1, Stage 2, and Stage 3 performance upgrade packages in SA. Roxstar Performance supplies matched intake, exhaust, camshaft, and fuel calibration packages for street and race motorcycles in South Africa.
The Systematic Stage Progression
Modifying a motorcycle engine step-by-step ensures that each mechanical modification operates within its ideal volumetric efficiency window. Combining mismatched parts causes power dips, overheating, or valve contact. Roxstar designs balanced packages that protect engine longevity while delivering maximum performance.
Stage 1: Intake + Exhaust + Fuel Recalibration
+10% to +15% HPHigh-flow air cleaner, free-flowing exhaust headers and silencers, and a digital ECU flash tuner or fuel controller to optimize AFR.
Stage 2: Stage 1 + High-Lift Performance Camshaft
+25% to +35% HPUpgraded camshaft grind (torque or horsepower profile), adjustable pushrods, performance lifters, and upgraded oil pump.
Stage 3 & 4: Big-Bore Cylinders, Heads & Throttle Bodies
+40% to +60% HPIncreased cylinder bore and stroke, CNC ported cylinder heads, oversized valves, heavy-duty clutch pack, and high-volume throttle body.
Request Model-Specific Motorcycle Exhaust Advice
Speak directly with a specialist to verify make, model, year, and performance compatibility for your motorcycle.