03-03-2011, 02:23 PM
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#1 (permalink)
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A True Z Fanatic
Join Date: May 2010
Location: nirvana
Posts: 6,394
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Quote:
Originally Posted by Footloose301
I went with a real intake. I believe these are placebo effect only. I don't see how replacing the upper part of the intake alone would increase any power unless you're changing out the filters for K&N too. $110 seems like a rip off IMHO. I think you'd be better off with just filters.
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I picked up 3-5 throughout on top of the K&N's which added 6-10 here and there.
Intitially i thought it wasn't worth it, but careful reanalysis of my dynos changed my mind. Biggest gain was to peak torque right around 5K.
Someone claimed a gain of 12 for the tubes alone (not sure if on a dynojet), but I've noticed that the first breather mod always seems to make the most dramatic gain, and all subsequent gains are less for the same mod if it is bolted on 2nd or 3rd rather than 1st -- probably diminsihing returns as you approach optimal VE for the motor. VVEL tuning should open that up further...
Anyway, if you are on a budget, just do K&N filters and don't worry about the tubes.
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