Snail Performance Speed Density ProTune, EJ257 Shortblock, EJ205 CNC Combustion Chamber Matched 5 Angle Port Heads, Tomei 7760, PE800 Injectors, ...
Heedz' 2003 WRX Snail Performance 91 Octane Speed Density ProTune 2.5L Hybrid Tomei 7760 Turbo
Will high-octane fuel make your car go better? Will premium petrol make your car run more economically? More smoothly? Cleaner? Or any combination of ...
Should I use hi octane premium petrol, and what is octane rating?
A quick video to explain the difference between Alpha N and Speed Density EFI systems on HD Motorcycles.
Daytona Twin Tec - How To Series - AlphaN vs Speed Density EFI - Kevin Baxter - Pro Twin Performance