I used groupon for this install and opted for the upgrade which I am glad I did. The morning of the drop off we had snow and my ride was not comfortable on the road so I decided to tuf it out !!! The staff was 5 stars when they relized I was waiting and got me in. This was at the Kirkwood Hwy store. A freind had one installed at another store and paid much more !! I am very pleased and would highly recommend this store and their products