I agree with Klaus--My Magnacharger is fantastic---the twin screw with an intercooler-- actually an aftercooler really performs and with the right tuning it runs smooth with great throttle response. More than one person has driven my H2 and find it hard to go back to the stock H2 HP--it is an entirely different vehicle.
However, I should not have bought the $200.00 warranty. ANY aftermarket performance part--any lift--any different tire size makes the warranty toast on the SC--and forget about engine or drivetrain issues with your dealer once it is on the H2.
Still-----I will SC my next H2 and roll the dice. It is worth the risk.
Cetrifugal SC's are gaining popularity due to their simplicity----I have seen no data to prove that they perform as well as the twin screw--intercooled. I have not yet done an analysis on the HP per dollar comparison since the cetrifugal chargers are quite a bit cheaper.
GM has at least endorsed the Magnacharger--forget any warranty claims with a centrifugals on the market. But...forget about the Magnacharger for GM claims as well.
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