[CarterMD]

As far as I know you can simply rip out all the electronics and stuff from your standard JCW filter-housing, make a hole in the back down the bottom and you have the same effect.

Okay, maybe you should close the hole in the roof of the filter housing for the flap so the air does not go her own way...

[pocketrocketowner]

I am very tempted. i think the next time I go testing I will disconnect the electrics and vacuum and tape the flap full open. See how much diference it makes.

[T-bone S]

Remember any difference will be in sound and performance - under 4500rpm. - performance over this rpm will be unaffected. all other factors remaining equal.

[:: Jon ::]

just remove the flap altogether.. simple by just unscrewing the top plate remove flap the screw plate back down.. the just unplug the electronics..

you'll notice the sound difference

[T-bone S]

will be ordering my race filter at the end of this week - can't wait. - Hopefully it will give me the kick of the ALTA without the melodramatics!

[Haggi]

Quote: Originally Posted by Root Ginger (original)

TBH there have never been figures published but Roland has said that the GTT is slightly better than the ALTA for flow. Make of that what you will.

if i was selling something i would say the same but from what ive read the GTT seems better suited to cars with a higher BHP figure than a stock model which i think the ALTA would be better suuited for as if i were to go for the GTT i would consider a re map and better plugs and larger throtle body