Officially the Dinan intake isn't available for the Z4M.
I believe on the non-M, they claim roughly a 5hp gain and with the Ram Air, they claim around 12hp (with their software).
I just installed the Dinan intake over the weekend, and Butt Dyno says there's an ever so slight increase. vvverrryyy slight.
I'm expecting major gains with the headers and exhaust though.
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2010 BMW 335d "Ha! She wants the D."
2006 VW Jetta 2.5
Once upon a time...
'03 VW GTI, '99 Audi A4 1.8TQ, '00 VW Jetta 1.85T, '09 BMW 335i xDrive, '04 BMW Z4 3.0i, '01 Audi TT 1.8T, '04 Volvo S80 2.5T
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