I fitted one of the eBay CAIs that have been mentioned on here a frew times and am very happy with it, car seems more responsive and the noise is great.

BUT... I've noticed a drop in fuel economy. Is this a side effect of the CAI or of my heavier right foot wanting to hear Darth growling ?

Has anyone with a CAI fitted noticed a change in the fuel consumption, or is it just me ?

i fitted a CAI about a month back... before fitting the kit i averaged 34 ish now i average about 31 so yes i have seen a difference but like you say is it down to the car or your right foot... i drive my vrs hard most of the time so i'd say its down to me...

don't think thats helps much but there you go.. i tried the vpower fuel (98 ron) and found very little difference considering its 95 pence per litre... has anyone else tried these higher ron fuels and had any success???

i fitted a CAI about a month back... before fitting the kit i averaged 34 ish now i average about 31 so yes i have seen a difference but like you say is it down to the car or your right foot... i drive my vrs hard most of the time so i'd say its down to me...

don't think thats helps much but there you go.. i tried the vpower fuel (98 ron) and found very little difference considering its 95 pence per litre... has anyone else tried these higher ron fuels and had any success???

I've run a couple of tanks of the V-Power fuel through my Octi vRS and wont use it out of preference. my car still prefers esso super

I use only shell optimax 98, now v-power99 and can say that in my opinion, on cars with larger engines, its better than using regular 95 ron fuels. i cant compare it to esso super or bp ultimate, because i never buy them. Shell has always been 2p cheaper a litre, and considering the 2,500 litres i use a year its worth staying with Shell (its the equivalent of a full tank a year, or a weeks free fuel!

Shell also happen t have a garage next to my work. >)