They advertize their performance chip will increase your HP and gas milage. I may have increased HP but my gas milage decreased by 1mpg. I ordered this on December 2 and received it on December 30. I installed it on January 2. I drive 160 miles round trip to work per day. After driving 1100 miles my mpg decreased by one MPG.
I contacted them on January 6 to return it and they contacted me back the same day asking if I connected it correctly. I contacted them on January 7 and told then which pins on the air intake sensor I used. They contacted me on January 7 and said it maybe defective and they would look into it.
On January 20 I contacted them and said I still want to return it and they Emailed me and said the 14 day moneyback guarantee is expired
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