If you
http://www.cat-dogracing.com/ and go to
1. Pics of our current project Car
2. Dyno Charts of Our Project Car
3. Supercharger inspection at 40k with 19%
You will see Pictures of a Supercharger inspection.
If then broke there car with a 19%, they must have been tracking it and had no intercooler. ALTA is now doing the 19% pulley, trouble free.
Not saying the dealer is wrong, but there are too many people out there with the 19% and have over 10k miles on them and have had no problems.