Depend on what car model. But after running few test with different cars, its recommended to remove that brand and use only Power Booster as most of them using that brand will switch to Power Booster once they test drive it unless its an Avanza or Myvi or Volvo then u can have both of it together and there is enough gain to keep you notice.

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Added on February 24, 2008, 2:33 am

Keep support the richer to get richer bro. Every country in the world rely more or less on petroluem as a main income for building the country.

If you did read SO MUCH about these stuff, i dont think you will post such remark that make you look ..ahem.

Let me enlighten some details from outside of the box.

1. If this product is soooooooooo good, why not big time company sell it ? YEAH! rite!! Imagine how much would it cost per month to endorse this or something into a car model ? How many units are sold per month ??? 50,000 units of myvi per month (example) and RM80 per unit of Power Boster would lessen their profit by .... 50,000units x RM80 = RM4,000,000.00!!!!!!!  How in the right mind would want to loose out that money every months ?! 

2. If REALLY save fuel then why not the goverment endorse or use them instead of making hybirds?  YEAHHHHHHHHHH!!!!!!!!!!!!!!!!!!!! Then the people in the petroluem industry can just pack their bags and go tanam padi and all the highway project and goverment project can flush down the toilet bowl becoz the petrol industri does not generate enough money to sustain. I remember before election, some menteri mention that, hopefully all RAKYAT dont be fooled by opposition that fuel price will drop if they win, coz its simply impposible and all the money are use for building highways and goverment project and blah blah blah..............  on TV3 news. 

So , back to the point, no country (or goverment) in the WORLD will stop or lessen fuel usage. The more fuel u use, the better the country or their pocket. If they really care about FC , they should even look futher down the road like global warming and pollution. But, nooooooooooo......... they build more and more cars with bad FC and hike more and more fuel price BUT people who want YOU to save that little bit of fuel get whack by someone who think he is not spamming but CONTRIBUTING TO SOCIETY.....  LOL!!!!!! (yeahh bro... yeahh man!!)

Contributing to society is to utilise the bandwith with proper information bro. And since you read so much, I am sure you should know what or how the princle is like. So now, u can really contribute to the society.

Cheers.

Oh ya, its a WTS thread, you do go ask an exhaust seller how to make an exhaust ,do you?

Rogesterada or all guys here, I don't mean to support him. But after I install the "VS", my car really feel some improvement in term of FC and pick-up.

FC wise, get more than 20KM half tank, I tested on highway with car running 110km/h all the way.

I am a sales engineer, so for me FC is important since my company only gave me lump sum of budget for petrol.

After that, I removed it and install in another few friend cars. I get some nice feedback from all my friend. I find out, if the car more old >5years, the power and fuel saving is more obvious. Now trying to get a few for my friend if they all confirm it.

My car : Waja Campro (sluggish car - auto)
My friends car : Waja Mitsu, Wira and Iswara.