Exactly what he said. Removing that dust cover lets the heat in...that is what it is for, on top of keeping dirt and grease out. I doubt that you will be able to put it back in, because the shifter is bigger than the stock unit. Mine is like a year round heater....kinda sucks in the summer though.
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Dustin
Saleenized 89 GT,428 rwhp,TFS Street Heat Intake,TFS TW Heads,TFS #2 cam,BD-11A 9 psi,FRPP 1.6 rr's,BBK 70mm TB,Pro-M 75mm Bullet,MSD 6BTM, FMS 9mm wires,BBK longtubes,BBK Short H-pipe,American Thunder cat back,3.55's
12.3@119
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