Product Description
Available by popular demand, the AEM air-flow straightener is a replacement part that can be used to correct the MAF sensor and fuel trim issues in the Mazdaspeed brand cold air intake kit. Because the Mazdaspeed intake was designed and manufactured by AEM, this is a direct drop-in part, no modification or fabrication necessary. The AEM air-straightener fits between the MAF housing and lower filter piping and installs in just a few minutes. This part will not work for other makes or models of aftermarket intake systems.
Part #: 9-21070
Note: This air straightener is only compatible with the Mazdaspeed brand intake. The AEM intake already includes this part.
Usually ships same or next day. 
