does an air intake system void a new car warranty?
#5
02-21-2007, 11:51 PM
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well, i am considering a programmer when my warranty runs out. i think the intake would suit the way i drive and give the + mpg i'm looking for. i just traded in a 2000 F150 xlt 4.2 v6 that averaged about 17 overall. no mods were on that truck. i now own a 07 F150 4.6 v8 stx. i think i can average 18 or 19 if i get an intake. i'm also considering skid plates as about 75 percent of my driving is commuting to and from work and i'm hearing and believing on my own tuition that skid plates offer a very slight aerodynamic boost for highway speeds. problem with that is i've noticed that skid plates are not offered as an option on an STX. i don't see why they wouldn't. anybody happen to know why? i do not plan to get an exhaust, and i'm assuming an exhaust modification does void warranties?
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03-02-2007, 09:49 PM
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#9
03-13-2007, 12:43 PM
It only voids the warranty on the stock air intake. This is the law unless they can prove that the modification causes the failure of another part. It will be fine. I had a Flowmaster and dual tailpipes under warranty. No problems. It only voided the warranty on the muffler and tail pipe. Nothing else on the truck.
#10
03-31-2010, 12:14 PM
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#12
04-07-2010, 05:25 PM
If you do an online search for “air filter test” there is a lot of very good information. IMHO, the CAI units are NOT WORTH THE $$! Unless you are talking about a system that was specifically designed for a specific application there are very little hp/tq gains actually achieved in a street use vehicle and there are very few docs that these mfg’s can produce that actually show an increase in hp/tq in the power-band range of a relatively stock street vehicle.
I would avoid oil impregnated filters. While they have their purpose in off-road applications, Ford/GM/Dodge all have “watch-out” bulletins where the oil has contaminated intake sensors. - they even have a training video for the tech's on this (flatratetech.com) .
If you look at the flow data, WIX HP filters flow 98+% of K&N and have a much smoother flow post filter plus excellent filtering, for a fraction of the price! The OE’s have an excellent air intake system. What many view as an issue (is the plastic intake tube with it’s noise canceling design) actually increases air pressure. It is the same hydraulic concept used by fire fighters creating water supply where psi is low. By having the air cross the path at a 90 degree angle, the pressure is increased proportionally. Fire fighters use what is called a “4-way valve” or “Blake Valve” at the hydrant where the water is cycled through the fire engine (pump) and sent back into the valve crossing the water flow at a 90 degree angle. In this case it also acts as a sound canceling device! At low speeds, this can reduce the flow a tad (which is what most “feel”), but in terms of peak hp/tq, a good high flow filter is all that is needed. You can use a WIX OEM HP replacement filter in the OEM plastic manifold box and either remove the plastic tube and replace it with a piece of pipe/hose, etc or remove the tube completely and replace the tube by building an air ram type intake into the air box manifold (where the pipe use to attach)- make sure ti terminates above the fan shroud to avoid water intake or fan induced pulsations.
I would avoid oil impregnated filters. While they have their purpose in off-road applications, Ford/GM/Dodge all have “watch-out” bulletins where the oil has contaminated intake sensors. - they even have a training video for the tech's on this (flatratetech.com) .
If you look at the flow data, WIX HP filters flow 98+% of K&N and have a much smoother flow post filter plus excellent filtering, for a fraction of the price! The OE’s have an excellent air intake system. What many view as an issue (is the plastic intake tube with it’s noise canceling design) actually increases air pressure. It is the same hydraulic concept used by fire fighters creating water supply where psi is low. By having the air cross the path at a 90 degree angle, the pressure is increased proportionally. Fire fighters use what is called a “4-way valve” or “Blake Valve” at the hydrant where the water is cycled through the fire engine (pump) and sent back into the valve crossing the water flow at a 90 degree angle. In this case it also acts as a sound canceling device! At low speeds, this can reduce the flow a tad (which is what most “feel”), but in terms of peak hp/tq, a good high flow filter is all that is needed. You can use a WIX OEM HP replacement filter in the OEM plastic manifold box and either remove the plastic tube and replace it with a piece of pipe/hose, etc or remove the tube completely and replace the tube by building an air ram type intake into the air box manifold (where the pipe use to attach)- make sure ti terminates above the fan shroud to avoid water intake or fan induced pulsations.
#13
04-07-2010, 08:11 PM
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#14
05-04-2010, 10:10 PM
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#15
05-18-2010, 11:25 AM
Air Filtration Test
Not totally scientific and not all filters are tested, but it certainly does confirm that most of the K&N marketing hype is just that, hype.
Not totally scientific and not all filters are tested, but it certainly does confirm that most of the K&N marketing hype is just that, hype.