Scam or is it legit? Says 20% increase in fuel economy on a F150.
Was pondering it for my Ranger 4.0 v6.

 

https://www.ford-trucks.com/forums/s...light=tornado+

 

I read an article about that product a while ago and decided then to not spend the $80 for the thing.

The report stated that it did increase mileage but, only in the upper RPM range, and only about 5%. There was no increase in mileage or performance below 3300 rpm on their test vehicle, an Explorer.

I intended to put one in my '89 F150, 5.0L (with highway gears), but seeing how my tach rarely goes above 3000, it wasn't worth it for me.

 

answer is: SCAM.

kthxbye

 

Everywhere Ive read says save your money and forget it. I havent heard one positive thing on any site. Save your money.

 

Here's my perspective: if this was an easy way to bump HP and gas mileage and stuff, why aren't the manufacturers using it right now? You know they won't have to pay $60 per vehicle or whatever, and they have the EPA breathing down their neck for gas mieage and whatnot. If it worked, I think mfg would make it OEM.