Deal on westers tune?

[freddy]

I just bought a used 03 2500 hd 6.0 and just found this site. It's awsome by the way. After reading about the westers tunes I think I need one. I was just wondering if they ever go on sale and if its enogh of a discont to wait for?And also I put 285 tires on my truck and was woundering if there is a simple way to figure out how to compensate for spedo / odometer being off when figuring MPG. The spedo is 5mph slow at 55mph. Like add ?% more miles than odometer shows?Until I get the spedo corected with a tune. Just would like to know what it is realy getting for MPG DIC shows about 11.8

[Indy]

I just bought a used 03 2500 hd 6.0 and just found this site. It's awsome by the way. After reading about the westers tunes I think I  need one. I was just wondering if they ever go on sale and if its enogh of a discont to wait for?And also I put 285 tires on my truck and was woundering if there is a simple way to figure out how to compensate for spedo / odometer being off when figuring MPG. The spedo is 5mph slow at 55mph. Like add  ?% more miles than odometer shows?Until I get the spedo corected with a tune.  Just would like to know what it is realy getting for MPG  DIC shows about 11.8

 

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Westers had a sale which ended today. Free shipping and 10% off.

[Mattt]

I think with 285s. its 7% off. I figured it out one time. Just add 7% to your total miles driven when figuring your mileage.

[SS Crew]

If that's in town driving, don't expect it to get much better.....Even with at Wester's Tune.

The 6.0 is not an economical motor.

[tbyrne]

Actually we have the Westers sale that ends today