My Prowler is basically stock, but with aftermarket wheels and 27" tires. Seems plenty high enough for me, and I wouldn't want to go any higher. But I'm just trail riding and not mud boggin. You may consider going with wheel spacers, but I don't think I would go with 2.5". Maybe go with 1"-1.5". I'm still debating on the wheel spacer thing myself. Prowler is already tight on some trails. Not sure I want to go any wider. Plus a little worried about the added stress on the machine as well.
-2011 Polaris RZR-4 800 (SOLD)
-1999 Polaris Sportsman 500 ATV
-2006 AC Prowler 650XT (SOLD)-- updated bevel gears, updated oil pump driven gear, 4 wheel disc brakes, line lock E-brake, Papa Slap clutch, Xentec HID's, Dynatek CDI, Warn skid plates, Intellitronix gauges, 2010 intake/cvt duct work and dust shield, RZR seats, Bestop folding windshield, full cab kit, rear cage and rear seats (4 seater)