using it now...yupp u can feel some minor improvement...but not massivelah...nak massive gotta use proper turbo engine

used it...it improved car 'breathing' a bit...

btw seller - how do u service or clean this device? i presume it might get kotor after a while right?

thx

update -

been using it for a few months in my old kembara - can feel good air sucking into the engine.

recently took out just to test my engine without the device for a few weeks - felt sluggish, the air feeling is gone and pick-up is not so good.

installed it back - go my 'power' back

so yeah, it works....not so massive but it works. no sure how. maybe it's some placebo effect...but if it give some positive results, why not?