The ARES 7-pc Exhaust Pipe Stretcher Kit, No. 14025, offers an alternative to traditional hydraulic pipe expanders, allowing users to quickly and easily widen exhaust pipes. This kit includes a heavy duty storage case, a 1-5/8" to 2" expander unit, and six aluminum collar adapters to gradually expand exhaust pipes from 1-5/8" up to 4-1/4" in diameter. The expander unit and its 28mm hex head are impact rated up to 800 ft-lbs, allowing for significant force application with the use of impact wrenches for expansion. Also included in the kit are two tubes of lubricating grease for lubrication of the O-rings and screw rods.