MKW

that wiring harness is 3/4 " thick with it's plastic protective sleeve - how could you even have bolted the two halves together ?- the screws wouldn't come close enough to seat more than a couple turns .

C4FDR

The harness has a loose covering that does flaten out to less 1/4" and the imprints were there.
FDR

ben in lj

"it shouldn't be unbolted for any of these box mods."

I mistakenly thought the Fabspeed box came with a new entire upper portion of the two peice airbox which would require moving the MAF.

fdr, it's going to be hard to tell until the MAF is replaced if they're telling you it might be bad. Once it is replaced, your problem may go away.

C2

Can the airbox be used with the 02 C4S?

996FLT6

If the airbox of the new c4s is exactly the same as with the 1999-01 models then yes is the answer. Regards. Mike