hiclone

You are really wasting your money,it amazes me that these units are still sold,despite hundreds of people getting little or no benefit.
Yes they do alter the running characteristics of the engine,you can feel the difference in low down torque,but the fuel economy increase is just not there.
If you buy two you are up for about $300,better to put this money towards a set of extractors and free flow exhaust.
If you really want economy from a traditional thirsty beast gas conversion is your only relief.
Regards

I have hiclones in my TD 3.0l Patrol and they did make a difference but have had reports from a friend with a petrol Cruiser and they made no difference. The thing with the Hi-Clones is that you have a money back guarantee, so go get them fitted and if they dont do what you expect take them back for a FULL REFUND.

Hey jt, I drive a Nissan Patrol 2003 4800 and we have installed 2 hyclones. I found little or no difference in economy but a hell of a difference in power. Its like anything these days though, you want a big vehicle, you cant expect to have a little fuel bill.

Have a look Here.

Note the talk of the Tornado and other similar devices..

Save your money.

Peter

I had supposadly two installed in the vehicle by the previous owner, I just went to take them out as I was experiencing the same if not worse fuel economy that all the other owners I know with identical vehicles, I could only find one in there.... Hmmm... Anyway, took it out no difference whatsoever. In fact I reckon especially with a turbo diesel vehicle like mine it'd do more to restrict the air flow than anything else. Perhaps with a naturally aspirated Petrol or Diesel it MIGHT do somthing, but I can't see how...