Is their any way I could upgrade once I build a shortblock to handle more boost or will I have to buy an entire kit again?
That is the beauty of the turbocharger. If the engine is built to handle it, power can be gained by simply turning up the boost. The turbo kit does not need to be upgraded. However, there are several turbocharger upgrade options which will be more efficient at higher boost levels. The stock turbo is capable of 15 psi boost with some loss in efficiency. We recommend putting on the turbo that best suits your end result goals from the start of your project. This will remove the need for a turbo upgrade later. Then when you are ready for higher boost, just flip the switch on our dual stage boost controller to “HI” and your upgrade is that easy.