Re: Power mods for the I-5
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Originally Posted by wpage
Had some improvement in performance by adding S&B Filter replacing stock air filter. In addition cut a 3" hole and inserted a aluminum flex tube running out under thru front starboard wheelwell to hole in bumper as a natural ram with a common air conditioner filter.
My estimate 5-10% gain in torque and hp. Impact on warrentee after cutting hole in air plenum is unknown!
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Nots not a good idea if your going through water 
Ram air + water = blown moter
I dont have the factory ram air on my 68 442 so I made one and have two 3 inch hoses running down under the bumper(used 2 wet vac attachments for ducts at bumper and metal elbows from home depot at the air cleaner). 
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