Thread: ST170 DIY Head Work
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Old Feb 23, 2011 | 06:37 PM
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chaffe
Turbocharging Technician
 
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From: Top secret. Mission:Imposible.
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Originally Posted by dug112y
st170 benefits more from proper port work on exhaust side
then a remap to suit presumably? how much material and where is best to take it from and what shape?
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