Polaris

stock pipe vs SLP single vs Dynoport single, stock muffler vs SLP muffler vs Dynoport muffler, Dynoport Y

compare box stock with proper tuning, various pipe combos.

break in, the dial carbs in to perfection, then adding even more CFM & HP with Sean’s airbox mods

stock XLT600 triple, baseline tested with Polaris oil, then treat and switch to Blue Marble, then back to Polaris oil again

DTR-05-Polaris-IQ-440.pdf

upgraded with new HTG High Volume quiet trail pipes

fine tuning airbox for maximum stock HP rewards us with added HP

dyno test data stock, various airbox mods

proper jetting, DynoPort triple pipes, Dynoport muffler, VForce reeds, timing = incredible HP pump gas bang for the buck

airbox mods, jetting tweaks, timing bumps, tuning for max pump gas HP on the Sean Ray XC600 low buck “tuneup”.

HTG Big Bore cylinder kit, quiet pipes, Megatron carbs

jetting, ignition timing, Vforce reeds, boost bottle, thicker basegaskets, higher compression, airbox mods (thanks Patty Denicola)

Twin Pipes from Aaen,CPI,HTG,PSI and SLP ……. Which would you buy???

the “mystery pushbutton” is the finest creation that Sean and Jim have invented yet! details inside!

Contributing editor Jim Czekala

Stock 88 Wildcat Shootout, Modified 89 Indy 500 Shootout, Stock 90 Polaris RXL,KCameron-Making Two-Stroke Exhaust Systems