richir rich

not 2 sure what the situation is on cold air induction kits, please help! some say thay course to many problems 4 turbo impreza cars ,others say there ok.please help a mam in 2 minds. cheers,

wrx davs

hi i've fitted a 57i with no problems but that was on a early wrx .... as i believe its some later cars that it screws up the MAF sensor hope this helps.

richir rich

erm might help chap ive a classic wrx and have heard it messes up mafs also? still same q goes out but cheers

richir rich

any 1 fitted a h.k.s to a 93 classic wrx.

ukdave

Hi mate ive had a green cone filter on a my/00 for a year now with no problems may change soon for a viper/bmc type with sealed filter and cool air pipe from front of car though reckon these will be better

richir rich

hi dave cheers 4 yr imput, so u recomend vipper /bmc type and this has no afect on the maf or the engine alltogether?

richir rich

sorry i mean damage wise

Gear Head

iTrader: (2)

Definatley dont go for the oil based kits such as HKS. K&N are ok, but you are better off going for an sti panel filter (about £40) from www.scoobymania.co.uk. This just sits in your original airbox.This do'nt mess up the afm and actually use a cold air source, unlike normal induction kits.
Used to have a Power Engineering K&N induction kit. Swapped it for the sti panel filter. All of the performance and none of the Darf Vadar noises!

VTEC to Turbo

Issue 1 of Scooby magazine did a feature on Panel filters. STi Panel filter gave suprisingly poor results (worse than standard filter)!! Green Cotton Panel was the best but only gave a slight increase in torque.

richiewong

Induction kits can draw warm air in from the engine without a proper cold air feed.
They can also lean out the engine as well kill your MAF. This can be put done to poor filtration, excessive vibration and, as mentioned above, oil from the filter coating the MAF.
Stick with the original airbox and uprated filter.
If need be remove the resonator box in the OSF wing

Just to add people do run with induction kits and have no problems what-so-ever as well.

richir rich

thanks all!