Insta-Boost belt treatment reduces slippage on serpentine belt driven superchargers. This stuff is almost too good to be true. For a few bucks you get a 4 oz. bottle that will probably last over a year. One application can last up to a month or more! If you cant get more boost after applying this belt treatment you have your belt way too tight. Beware of this. We have seen main bearing damage, blower bearing damage and broken crankshafts due to excessive belt tension. With Insta-Boost you can have the increased boost and increased HP without the bad side effects of a tight belt. Availability: Contact us for availability PSI-IB$21.00 www.realspeedauto.com Ph.631-563-7325 All parts listed are for the Ford Mustang unless otherwise noted. Copyright 2012 Realspeed Automotive Inc. All rights reserved. mustang parts:: mustang performance parts:: 2005 mustang parts:: mustang cobra parts:: ford mustang performance parts:: 2005 mustang performance parts:: ford mustang racing parts:: aftermarket mustang parts:: after market mustang parts:: high performance mustang parts:: fox body mustang parts:: billet accessories:: mustang cold air intake:: best lower control arms mustang:: shifters:: short shifter:: shifter:: mustang lowering springs:: pro 5.0 shifter:: mustang clutch::