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State Inspection with 3IM?
I'm about to install a 3 stage intake manifold on my 128i. Does anyone have experience passing Mass state inspection with a 3IM and tune?
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2011 128i M-Sport 6MT Coupe
Space Gray
Style 372 Wheels
Red Manual Sport Interior
Last edited by HappyDuck; 05-25-2023 at 09:12 AM..
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