Is the stage 2 just an ECU + Exhaust? To optimize these 2 things, dont you need to do more like change the spark plugs , diverter valves, etc? And doesnt that just put you to a stage 3 upgrade?

 

No, stage 3 uses K24s rather than K16s. Stage 1-all have BOVs. Stage 2 on out uses the exhaust, stage 3 and 4 use the K24s. Stage 3 no headers, stage 4 headers.

The GT kits...hmm forget trying to explain that one

 

whats a BOV? And what do K24 turbochargers ad as far as HP is concerned?

 

Blow Off Valve.

K24s will carry up to 600HP peak.

 

Stephen, nice consise, clear answer to that question, now all can refer to that when it comes up again!

 

You are weclome

 

Stephen,

Would you mind commenting on what you think of adding additional components a la carte to a Stage 4 package. For example, in addition to a Stage 4 package on an X50 car add--large throttle body y-pipe & larger inlet ducts (both EVOM parts). Will the additional parts offer any noticeable power improvement or am I wasting my money and should either stick at Stage 4 or move up to a GT package.

Thanks in advance!

 

If u guys are doing Evoms/IA/Sharky... go streight to gt640.. dont screw around..