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Old 03-13-2015, 12:01 PM   #1
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Ported and polished upper intake

I was looking at the ported and polished upper intake manifold at super six motorsports for my 2003 v6. It looks exactly like the stock one except its ported and polished of course. What kind of power increases cod i see from it? Thought about getting it, but not getting the lower manifold with it.

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Old 03-18-2015, 06:12 AM   #2
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no power adder, no tune, your probably looking at an slightly better airflow getting to the combustion chamber a little bit quicker, so probably no real power difference, but maybe a slightly better throttle response depending on how rough the stock one was. porting and polishing is more or less a way of squeazing any possible amount of efficiency out of your setup when you are already pushing it to its limits. I would put the money elsewhere first if your looking for power increase.
2002 GT 5sp. 16x,xxx miles
Steeda Exhaust, C&L plenum, BBK Throttle Body, Steeda Underdrive, Steeda short throw, unknown stage clutch. Rear main leak. Compressor seal leak. Steeda lower control arms. good tires.
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