I bought this and it works! www.mylittlegreenbox.com I used it 1300 miles and still going good. I paid $60 not bad. It paid for its self 7 tanks ago. I had my mechanic install it. To all you debunkers out there BALLS IN YOUR FACE. I feel more HP but the emissions are way low. I dropped 37% I have 1 bad left bank sensor on my 2002 Rover. I replaced it before the eco box. I am getting 22 to 20 mpg hwy. Still @!#$ty in the city. The eco box was designed for highway use the inventor told me. Well it works. 2 wire connection look for the 2 5 volt wires on the MAF sensor. I opened it up and I saw allot of components. Not just a resistor. I want to get one for my diesel but maybe after christmas. I am going to start selling these at my shop. I have about 15 to 20 different kinds. This one KICKS ASS.

Michael Burns
President
Planet Green Automotive

I get 30mpg(highway) with a supercharged cavalier. I dont need one. GTFO tree hugger.




219whp - I <3 whine