No intakes for the 3.1 at all. You'll have to fab one. BTW, exhaust clips will be deceiving. You won't sound the same because you're running a smaller engine. Something to think about.
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'13 Mustang 3.7V6 - MT82
'00 GP SE (L67 Swap, XP, Headers, 3.25")
'98 GTP, '01 Bonne