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I purchased a 2012 BMW 135i with Dinan stage 3 a few months back. I’m looking to get more power with the downpipe.
I’ve been researching on here and install looks fairly straight forward. Am I able to run a downpipe with the Dinan tune until I get a JB4 tune? I was looking at MHD, but I don’t think they are supporting the N55 2012 yet.
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