MacBoost Automotive technology long left the double- pumper tourbarrel behind, and aftermarket fuel mapping chips are the 2lst century replace- ment du jour. The MACBOOST designed by a support engineer at a motorsports electronics company providing hardware and software for Indy Car. Champ Car and NASCAR teams brings similar technology to your PWC. The mod is aimed at only at AquaTrax turbo models. and the vast potential of Honda's per- sonal watercraft delivered from showrooms in a relatively mild state of tune is unveiled when the stock curve is replaced by the more aggres- sive cum 0! the MACBOOST. The module bumps turbo boost by two PSI with claimed improvements of 20-plus horsepower and increased top speed resulting from the ac- companying 200-plusjump in RPM. WaterCraft World didn't run independent Dyno numbers, opting for a seat-ofthe- pants tst. We plugged the mod- ule into our long term F-12X test unit and came away convinced - the installation is easy, and once on the water the improvement is immediately noticeable. The Hondas previous bottom-end lull seemed to disappear, and while on-board instrument readings substantiated claims of increased speed, it was between the two where the MACBOOSTenhanced Honda really shines. Midrange power is especially improved. the already freerewing turbo engine spinning up even faster than be- fore. While we cant say how this addition will at. lect lactory warranty protection, safeguards are included to preserve reliability and rideability. The intelligent mlcmprocessor controlled device retains all stock programming and over- boost protection including the imperative ability to reduce boost due to knock and less titan optimum octane luel. MACSBOOST works on all Honda R-IZX and F - 12X watercralt The high quality waterproof mod- ule includes an integated digital daylight visible LED boost gauge. The plug in modication 5 also 2005 USBA Racing Stock Class rules legal. We're impressed: MACSBOOST is a unique per- lormance product tor the watercraft industry. and that pedomtance is as apparent to the seat of the pants as it is to a dynometer. MSRP: 5449 704/904 3949: macsboosteom