chillaxin Posted June 20, 2003 Share Posted June 20, 2003 What are the benefits (quantified) of a cold air intake? I heard that it increases horsepower, but by how much? Also, more importantly, will it void my warranty? I have a 2003 ES. Thanks! Quote Link to comment Share on other sites More sharing options...
steviej Posted June 21, 2003 Share Posted June 21, 2003 drop in air filters will not void the warranty. Picked up a few mpg too. I don't know if there is any substantial gains on the 02-03 with a CAI, cause I don't know of anyone who has done it nor have I read aobut it on the boards. removing/replacing the airbox, relocationg the MAF sensor, and eliminating any factory installed air intake system......I would say so. When in doubt ask your service manager or warranty writer at the dealership you go too. steviej Quote Link to comment Share on other sites More sharing options...
SKperformance Posted June 21, 2003 Share Posted June 21, 2003 a cai is the discrestion of the dealer for a warranty problem but if they want they can deny a claim if they feel it is caused by a changed or modification to me if i had a new car i would not do it a cai first ingests cold dense air from the front of the car away from the bumper cold air is more dense with molecules meaning it will pack more oxygen needed for combustion slightly leaning out the fuel mixture but increasing horsepower and torque second it removes the restrictions of a stock air box as there are water collection boxes attached to siphon out water incase needed this is also a muffler for the intake to decrease the intake noise it is a lexus after all removeing the box and placing a straighter pipe reduces the vacum needed to ingest ari freeing horsepower again to put to the wheels the low end torque curve will also be lowered in rpms but raised in overal power as it is the intial suck the engien can get much easier so it can get going faster remembering the engine is a vacum it sucks and blows anything to help make it easier helps like a hot dog stand straw and a mc donalds straw which one would you rather breath through and the intake will be a bit more noisy or sweeter sounding ( depending on your preferences) which creates air waves whcih also increase induction it saves gas for sure as i went from 400km a tank to over 500 depending on how i felt like driving that week to me it is a win win situation only draw backs are deep pudles over 1 foot deep as the intake will be submerged and wil ingest wateer causeing the engine to lock but there are bypas filters for this purpose and do not buy a short pipe,wrongly know as a ram pipe which sits in the engine bay and sucks in hot air causing a lose in performance and gas milage Quote Link to comment Share on other sites More sharing options...
chillaxin Posted June 21, 2003 Author Share Posted June 21, 2003 wow, soundz like one complicated piece of equipment... so how much noiser are we talking about? also, how much does it cost usually, and what kind should i get (if i get it, that is)? also, is this something that i can do myself (taking into consideration that i had trouble enough figuring out how to take out my turn signal bulbs)? thanx! Quote Link to comment Share on other sites More sharing options...
bbsal Posted June 23, 2003 Share Posted June 23, 2003 what do you mean by engine locking up?do you mean stalling out or acually blowing up?i would like to know because i would like to put one in my car but if theres a risk of killing my motor then screw it.also how did you make it?thanks Quote Link to comment Share on other sites More sharing options...
SKperformance Posted June 29, 2003 Share Posted June 29, 2003 it is simpl;e a pipe but must be made right it is not that easy to make one properly as air leaks and other problems can happen pluis it involves rolling the fender slightly to get a larger round pipe in there the noise is nothing it onlymakes noise when the throttle is at wot for what kind there is only one stlye and no one i know make a good cai just crappy short pipes not really a diy project locking up means that if the engine went in a 2 foot pool of water at a high rpm it would suck water into the engine liquids do not compress gases do so the engine would go in to lock up and the valves pistons connecting rods ans well a few other things would be vent by the compression lock that is wy it is also not a diy job since it needs a good filter and to placed properly to avoid water issues Quote Link to comment Share on other sites More sharing options...
bbsal Posted June 30, 2003 Share Posted June 30, 2003 ok thats what i thought you meant.at first i thought you meant just stall out.i think i will pass on that because i dont want to risk that unless i found someone thats really good at doing it. Quote Link to comment Share on other sites More sharing options...
SKperformance Posted June 30, 2003 Share Posted June 30, 2003 that is the best idea if a company does not have a madrel bender for 3 inch pipe then don't do it as they would not have as much experiance with the metal and placement once they inverst in one of these machines then they do alot of work to pay it off Quote Link to comment Share on other sites More sharing options...
chillaxin Posted July 11, 2003 Author Share Posted July 11, 2003 so do drop in air filters make any difference? i was looking at the k&n air filter website, but i'm totally lost as to what to look at. Quote Link to comment Share on other sites More sharing options...
SKperformance Posted July 11, 2003 Share Posted July 11, 2003 the k and n ones work for fuel mileage but i don't feel tehy do for perofrmance gains they look just like the stock air box filter but are made of different material and are not as deep only 1 inch thick compared to 2 on the oem one Quote Link to comment Share on other sites More sharing options...
steviej Posted July 12, 2003 Share Posted July 12, 2003 check out the June 2002 issue of Hot Rod or go to www.hotrod.com and look in their archieve section. They did a side by side comparison of air filters (OEM and performance). Very interesting. I went with a K&N simply for the ability to not change it in the long run. Rough calculations based on gas saved and not having to buy OEM filters turned out to be about $2000 over 10 years. steviej Quote Link to comment Share on other sites More sharing options...
chillaxin Posted July 12, 2003 Author Share Posted July 12, 2003 so if i was to want to buy a k and n air filter, what kind should i buy and where the heck does it go? where do i drop it in to? Quote Link to comment Share on other sites More sharing options...
chillaxin Posted July 12, 2003 Author Share Posted July 12, 2003 oh, and i wonder how much $2000 in 10 years would come out to with inflation? i forgot everything i learned in finance, not that if i remembered i'd still spend the time and effort to work it out. but i'd guess somewhere around $30 in today's money Quote Link to comment Share on other sites More sharing options...
SKperformance Posted July 12, 2003 Share Posted July 12, 2003 the drop in goes right where the stock one goes just remove and replace Quote Link to comment Share on other sites More sharing options...
steviej Posted July 12, 2003 Share Posted July 12, 2003 the drop in filter is just as the name says. It simply "drops" into the stock air box that the stock air filter goes. You take out the old Denso white fiberlike air filter and put the k & n in its place. chill...can you follow that. go to k&n's wedsite and find your filter. should run around $35-50 depending on where you buy it. AND YOU NEVER HAVE TO BUY A FILTER AGAIN....that is what I learned from business class. I don't give a crap about inflation rates over 10 years either. I just know that is about $2000 that I won't have to spend on extra gas and stock filters. do you follow what I am saying here. here is the link to find you filter, and on k&n's wed site you can find a list of mail order firms that should have it in stock. http://www.knfilterchargers.com/search/appsearch.aspx have a nice weekend. :whistles: steviej Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.