05-12-2012, 07:05 PM
The HDI stock cams are more wank than the XUD ones, so more gains MAY occur, but really depends how harsh the piper ones are....probs not very, due to the fact that if they are, you just shit lifters every 5 mins...
I didnt notice much odds with stockISH turbos...only really noticed the gains when i was fueling it at 5krpm+ and BIG turbos...
I didnt notice much odds with stockISH turbos...only really noticed the gains when i was fueling it at 5krpm+ and BIG turbos...
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