January 31, 2006Does anyone have comments on plastic air intakes vs. polished metal. I have heard that the metal intake systems get warm and it defeats getting cold air in your engine.
February 1, 2006Ya in a racing engine it would make a diff.. Its only about 5 degree diff in air temps.. And that can change with the weather outside.. The main thing is to have the air flow ( No restricion) .. The filter does all the work.. I started out with just the KN filter and got another 5mpg.. Changed to a CAI and got 6.5mpg gain and a little deaper tone.. Intakes make your pipes sound good... Plus it sounds cool when you step on the gas and you here that swoosh sound under the hood..
February 1, 2006My engine is stock and I also just have the K&N filter but I want to install the whole intake. I like the way the polished intakes look but didn't want to get it if there was going to be a big diference between the plastic ones. I have a Magnaflow exaust and think it is a little to quite, I think I'm going to waite and hear how it sounds after the new intake.
February 1, 2006Thread moved to the "Intakes" forum.
I wondered about this myself, particularly with the various K&N offerings. Initial feedback - even from K&N was that the polished intake ('77' model) was more for looks and the plastic one ('FIPK') was for performance, with the temperature differential being the exact explanation. However, K&N's dyno tests showed that the 77 actually outperformed the FIPK, so who knows?
Bottom line - get the one that looks better to you. An intake will free up a few horsepower and will offer a subtle improvement in throttle response. Realistically, the difference in intake tube appearance is just that - there's no way those of us with relatively stock engines driving very heavy vehicles will know the difference.
February 1, 2006iwhen i bought my 77 it was a few buck cheaper then the plastic fipk plus the 77 look nicer
just a thought
February 1, 2006yep .. Its a cool under hood mod...
February 1, 2006Thanks for all the input. I think I'll go with the polished.