Gripenfelter Posted March 10, 2007 Share Posted March 10, 2007 Anyone notice a difference in hp or fuel economy between the drop in filter and a cold air intake vs stock air box? Link to comment Share on other sites More sharing options...
GrnMchn Posted March 10, 2007 Share Posted March 10, 2007 I noticed a difference on a LT1 camaro I used to have with a cold air kit that took air from the front bumper. On my old tacoma and current pathfinder I just droped in a K&N and drill a 4" hole in the front of the airbox and put in a deck plate from a marine suply store so it can be closed up if needed. I'm sure it flows very close to a expensive intake but there is very little HP and fuel economy gain. I also have a Lexus SC400 and the stock airbox with holes and a few plates to block hot air from the engine gives more HP than the expensive cone filter kits. Link to comment Share on other sites More sharing options...
Gripenfelter Posted March 10, 2007 Author Share Posted March 10, 2007 I noticed a difference on a LT1 camaro I used to have with a cold air kit that took air from the front bumper. On my old tacoma and current pathfinder I just droped in a K&N and drill a 4" hole in the front of the airbox and put in a deck plate from a marine suply store so it can be closed up if needed. I'm sure it flows very close to a expensive intake but there is very little HP and fuel economy gain. I also have a Lexus SC400 and the stock airbox with holes and a few plates to block hot air from the engine gives more HP than the expensive cone filter kits. Funny you should mention cutting up the airbox. I just did that an hour ago. Yes in the LT1 Camaro you need a CAI because the stock piping is so restrictive. I need to design something for my '98 Maxima now. Link to comment Share on other sites More sharing options...
RWC5S2 Posted March 10, 2007 Share Posted March 10, 2007 I went to Pep-Boys and bought a K&N look-a-like cone filter plus the 3" adapter plate, pulled the OEM air filter and box from my 2003 Pathfinder and put the look-a-like filter in. I have gone thru 3 tanks of gas since then and achieved a whopping 1.2mpg increase. Not too significant but, it beats the heck out of only 13mpg. Link to comment Share on other sites More sharing options...
nissandoms47 Posted March 10, 2007 Share Posted March 10, 2007 man your mileage sucks. Link to comment Share on other sites More sharing options...
RWC5S2 Posted March 11, 2007 Share Posted March 11, 2007 Ya think? I can get 15 or just better on the road but in town sucks the big one. I really lost the mpg with the 33's I put on. Plus, the KMA front bumper is kinda heavy. Oh well, at least it ain't a grocery getter any more. Link to comment Share on other sites More sharing options...
nissandoms47 Posted March 11, 2007 Share Posted March 11, 2007 lol, i bet you would gain a lot of performance back with some 4.6 gears. Link to comment Share on other sites More sharing options...
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