91+ Octane required · Speed limiter removed · Rev Limit: 8000 RPM · Target: 7800 RPM

91+ Octane required · Speed limiter removed · Rev Limit: 8000 RPM · Target: 7800 RPM

91+ Octane required · Rev Limit: 8300 RPM · Target: 8100 RPM · 292 HP @ 8100 RPM

91+ Octane required · Rev Limit: 8500 RPM · Target: 8300 RPM

Aggressive timing · 91+ Octane required · Rev Limit: 8500 RPM · Target: 8300 RPM

Lower timing for low octane fuel · Rev Limit: 8500 RPM · Target: 8300 RPM

RiDE system cancelled · 91+ Octane required · Rev Limit: 8500 RPM · Target: 8300 RPM

91+ Octane required · Rev Limit: 8800 RPM · Target: 8600 RPM

Low octane fuel allowed · Rev Limit: 8800 RPM · Target: 8600 RPM

Aggressive ignition & throttle response · 91+ Octane required · Rev Limit: 8800 RPM · Target: 8600 RPM

91+ Octane required · Rev Limit: 9200 RPM · Target: 9000 RPM

Aggressive ignition & throttle response · 91+ Octane required · Rev Limit: 9200 RPM · Target: 9000 RPM

Aggressive ignition & throttle response · 93+ Octane required · Rev Limit: 8800 RPM · Target: 8600 RPM

Aggressive ignition & throttle response · 93+ Octane required · Rev Limit: 9200 RPM · Target: 9000 RPM

Aggressive ignition & throttle response · 93+ Octane required · Rev Limit: 9500 RPM · Target: 8800–9000 RPM

Aggressive ignition & throttle response · 93+ Octane required · Rev Limit: 9500 RPM · Target: 8800–9000 RPM

Aggressive ignition & throttle response · 93+ Octane required · Rev Limit: 9500 RPM · Target: 8800–9000 RPM

Aggressive ignition & throttle response · Ethanol 85% required · Rev Limit: 9800 RPM · Target: 9200–9600 RPM

93+ Octane required · AFR monitoring & logging required for final tuning · Rev Limit: 9700 RPM · Target: 9500 RPM

Aggressive ignition & throttle response · E85 required · AFR monitoring required

Aggressive ignition & throttle response · E85 required · Mandatory AFR monitoring & logging for final tuning

Aggressive ignition & throttle response · E85 required · Mandatory AFR monitoring & logging

91+ Octane required · Rev Limit: 8500 RPM · Target: 8000 RPM (14/16) or 8400 RPM (11/15)

Aggressive timing · 91+ Octane required · Rev Limit: 8500 RPM · Target: 8000 RPM (14/16) or 8400 RPM (11/15)

91+ Octane required · Rev Limit: 8500 RPM · Target: 8300 RPM

Aggressive timing & throttle response · Speed limiter removed · 91+ Octane required · Rev Limit: 8500 RPM · Target: 8300 RPM

Aggressive timing & throttle response · Ethanol 85% required · Rev Limit: 8800 RPM · Target: 8600 RPM

91+ Octane required · Rev Limit: 8600 RPM · Target: 8400 RPM

Aggressive timing & throttle response · 91+ Octane required · Rev Limit: 8600 RPM · Target: 8400 RPM

93+ Octane required · Aggressive timing & throttle response · Rev Limit: 9000 RPM · Target: 8600–8800 RPM

VP MS109 fuel required · Aggressive timing & throttle response · Rev Limit: 9000 RPM · Target: 8600–8800 RPM

Ethanol 85% required · Aggressive timing & throttle response · Rev Limit: 9000 RPM · Target: 8600–8800 RPM

No additional parts required · Fuel economy improved 20%+ · Speed limit options: 25, 30, 35, or 45 mph · Lower ignition timing for reliability

Speed limiter removed · 91+ Octane required · Rev Limit: 8100 RPM · Target: 7900 RPM

91+ Octane required · Rev Limit: 8300 RPM · Target: 8100 RPM

91+ Octane required · Rev Limit: 8600 RPM · Target: 8400 RPM

91+ Octane required · Rev Limit: 8550 RPM · Target: 8350 RPM

93+ Octane required · AFR monitoring strongly recommended · Rev Limit: 9200 RPM · Target: 9000 RPM

91+ Octane required · Speed limiter removed