Description

This Upgraded HEAVY DUTY HD Tensioner for your Magnuson Supercharger is a MUST-HAVE upgrade when running at higher
boost levels. Most customers running over 8 psi have experienced issues with
the standard tensioner that comes with the supercharger kits.

At standard loads,
running at 7 or 8 psi, the stock tensioner is fine, however, we have found that
when you start getting up to the 10-15 psi range with the smaller pulleys slip
and belt fatigue (and failure) occur. This tensioner has an 8-rib pulley with
a stronger arm and spring to reduce slip and breakage under the heavier loads
produced at higher boost levels.  ( same as M-31-12-00-082 )

Fits ALL Magnuson Supercharged:

• Pontiac GTO
• GM Trucks  1999-2007 Classic
• SSR
• Trailblazer SS
• Same as Magnson PN 31-12-00-082