Turbosmart offers two significant upgrades for their eBoost2 and eBoost Street boost controllers. The 4-port Turbosmart Solenoid Suit takes the performance of your Turbosmart boost control system to the next level, giving you more precision over boost management than ever before. With this upgrade, you can tailor the response curve of your Turbosmart controller to suit any aftermarket or motorsport ECU control strategy, giving you greater control over boosting performance. Moreover, Turbosmart has designed its product with superior quality parts to stand up to even the most demanding racing conditions. Make sure your Turbosmart eBoost2 or eBoost Street boost controller is optimized for maximum performance by upgrading with a Turbosmart Solenoid. Turbosmart - Engineered to Win!