David left us a review on our site for the stage 3 power pack!!

"Hands down the greatest place in North America for you smart needs. Not only am I incredibly impressed with the customer service, I'm also bonkers over the quality and care or onto the parts and installation. John was my main contact, and I have to say by the end of the day I felt confident and comfortable due to his diligence and level of continued care in my experience. ​Stage 3 Power Pack is a great investment. I was pushing 42mpg over the Grapevine on the trip home!"

One of the best ways to quickly increase performance and track times!

Follow the link below for more information!

smart fortwo 451 MADNESS Power Pack - Stage 3 Online Store - smart car Parts and Accessories