2 STROKE WIZARD TUNED PIPE IS THE BEST PC PROGRAM FOR YOUR EXPANSION CHAMBER EXHAUST DESIGN NEEDS. WITH THE INPUT OF A FEW BASIC ENGINE SPEC`S IT WILL DESIGN YOUR EXPANSION CHAMBER EXHAUST ( TUNED PIPE ) AND YOU WILL HAVE DIMENSIONS TO PRINT OUT IN SECONDS * DESIGN FOR USE WITH METHANOL, ETHANOL OR GASOLINE * MINIMAL INPUT REQUIRED, MOST EASY TO USE PACKAGE * SIMULATING & OPTIMIZING SHOCK PULSE WORKING = MAX HP NOTE: EXHAUST DIMENSIONS DIFFER DEPENDING ON WHAT FUEL YOU USE. THIS SOFTWARE GIVE YOU THE OPTIONS ON THE FUEL TO BE USED, AND IS SIMPLER TO USE THAN ANY OTHER... FOR WINDOWS 98, XP AND VISTA