A spare corolla inlet mani, set of 600cc motorbike throttle bodies, 4x silicone couplers.and basically everything else is custom and up to you how you do it. Remember throttle cable needs mounting somehow and you need to get some vacuum ports tapped into the inlet. Honestly can't see why more people don't do it. Tbh though there's not a lot more power to be had and they can be tricky to get running right on a diy setup