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Just a quick question.... I'm trying to figure out why there is such a price difference between the aftermarket pulley's. I've seen them as cheap as $170 and more than $800.... doesn't the cheaper ones do exactly the same thing?
 

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Just a quick question.... I'm trying to figure out why there is such a price difference between the aftermarket pulley's. I've seen them as cheap as $170 and more than $800.... doesn't the cheaper ones do exactly the same thing?
you buy what you get for...
 

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Not at all.

Actually only headers require a tune. All other bolt on mods are adapted to by the ECU automatically.
 

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plus I believe RPi is same color as stock so its harder for the dealer to detect if you are still under warranty and don't want to take it off every time you o in for service.
 
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