Hello and welcome to the cube family!if you are looking for parts check eBay.com or Amazon for replacement parts needed to repair your cube.performance parts aren't really available for the Nissan cubes the engine is the mr18de.the Nissan versa and Sentra shares the same engine and the only difference is the mr20de which is a 2.0 liter engine or 1.8 liter engine.for starters you can install a performance air intake and performance exhaust system. I haven't really found much for engine upgrades parts unless you plan to supercharge or turbo charge.good luck.