I purchased a 2007 cts-v last year in mint condition with only 11k miles. I have a 100k mile warranty from the dealer. It's been a dream, but I have the urge to upgrade the performance to break closer into the 500hp range. I'm not a mechanic and I'm not a mechanic by any means. I barely know how to change a tire lol.
What are the top 5 greatest hp performance upgrades?
What are the top 5 least expensive performance upgrades?
Which brand is the absolute best for each?
Are the performance upgrades going to void my warranty and/or shorten the life of the engine? I drive it pretty hard.
Thank you for the feedback!