H2brute,
Installing a SC voids your factory extended warranty.
Having a dealer do the install will usually get you a dealer honored 12 month warranty.
Purchasing the extend warranty from the SC company gets you 3 years of power train coverage so it's a wash in my opinion. You loose the factory warranty but so long as the dealer will stand behind the install you still have 3 years of coverage.
You can expect 500 horse at the motor doing a stock SC install along with your other mods assuming you're not changing the pulley size. You'll lose 1/3 of that horse power from drive train component lose so do the math and you'll have a pretty close idea of what kind of power is reaching the wheels.
Yes do stick with a Roots type SC.
Good luck and enjoy the SC.
