Brand new M45 5th gen units

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TVS is a straightforward bolt on, can run off the stock ECU, and the boost isn't anything crazy. What we are waiting for is to see how much can be had safely from the TVS on a stock ECU. Rotrex is a different animal, but the TVS has the potential of significantly adding power without generating a ton of heat and stressing the internals. Kind of like doing what the Sprintex was billed to do without blowing stuff up. Wether the price will be worth it is up to the individual. Thing is, with the TVS, you can "dial it down" for the stock ECU, and then you can always eventually go badass with the vipec and boost, and upgrade the internals, somewhere down the road if you choose.