If you're looking for that extra umph for your 451 smart, then we've got the answer for you! We've developed a staged number of upgrades for the 451 smart to give you that extra power and response. On top of all that, by grouping these parts together into staged packages, we are able to help our fellow smart enthusiasts save money!

To start, here's our Stage 2 Power Pack!









For more information and images please follow the link below:

smart fortwo 451 MADNESS Power Pack - Stage 2 Online Store - smart car Parts and Accessories