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Old 01-21-2017, 12:27 PM   #40
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Join Date: May 2014
Location: S.California
Posts: 2,027
Originally Posted by jaykay View Post

Retaining the 987 MAF housing could itself can cause ECU issues as the diameter is larger than the 986 housing iirc. I have heard, stories where the ECU may adapt but I tend to take these with a grain. Unless your friends custom tune is gear for a larger diameter, he will likely get mixture issues.
987 Airbox +986 MAF tube+986 MAF sensor is no problem on my 986 S . The airbox is not critical within reason. Boxster CAI systems have no real airbox at all.
987 v 986 Air box
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