Any advantage for air intake on 09 toyota

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408
Location
Ind
Would I see any difference installing an air intake like K&N on my 09 Toyota 1.8L.. or would the money be better spent on other things.
 
Messages
7,430
Location
beaver land EH?
Other than elevated silicone reading in my UOA and a slightly nicer low-end (low rpm) grunt (sound wise), I trashed my K&N after a year of usage in my Mazda 323 back then. I wouldn't bother with air intake or filter mod anymore, citing (a) almost no gain in performance (OBD-II ECU are very controlling, and can compensate for your K&N replacement), and (b) the ever-concerning elevated silicone readings in UOA. Q.
 
Messages
1,350
Location
South
05+ Tacos already come with CAI from the factory. Other than opening up the airflow a bit, there is no benefit to an aftermarket CAI. K&N for the Taco actually pulls air from the engine compartment as well as some air from the outside. The heat shield that K&N supplies with their intakes does about as much good as a fig leaf on an elephant. Plus there is always more silicone going into the engine with K&N. If you just want a permanent/cleanable filter, look into AFE drop-in replacement for the factory filter. I've heard nothing but good things about them over at toyotanation.
 
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Messages
4,844
Location
Saskatchewan
A little more power at high rpms, a little less at low rpms, and a little more dirt in the engine. Unless you really need that extra couple of horsepower at high revs, I'd do something else with the money.
 
Messages
19,479
Location
Chicago Area
The intake will probably get a bit of power at full throttle . But upper intakes like this are very expensive in the HP/dollar game. For your stock system, make sure the actual end inlet is not a tiny restricted hole. You can often open this up and make a home made improvement, like a piece of PCV pipe grafted on - whatever. An underdrive crank pulley is a very good gain per $, BTW. Your light may dim a bit at idle, but a very nice improvement for $100 or so.
 
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