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im relatively new, but i know some stuff bout the wrx's for not owning one. well i was reading the supra wrx supraforums thread, what is a BPU??
 

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BPU = Basic Performance Upgraded last time I checked...not sure what the cut-off on that is though (ie. when is your car too modded for "BPU").
 

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BPU (basic performance upgrades) is a term borrowed from the Supra guys. For a turbo car, it's simply dp, ex, and some sort of boost controller. For an Integra, example, it'd be I/H/E. On the WRX, the uppipe is really part of BPU IMO.

Basically, it's a lot easier to say BPU than "Vishnu uppipe, godspeed down pipe, custom midpipe, tanabe catback, turbo XS manual boost controller" when someone asks what mods you have.

hth, -C

Original BPU list
 
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