1.6L Greddy kit replacement downpipe
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Actually, his dilemma was whether he could mate a 3" DP to his current 2.5" FM cat/exhaust. The answer unfortunately is no.
You can mix & match sizes (though not recommended) using my DP/cat/exhaust because I use flanges with slotted bolt holes, but not with FM or any other flange that uses a specific bolt center to bolt center distance. Hope that makes sense. Visual aid:
Mine:
![](https://www.miataturbo.net/attachments/artech-fabrication-miata-accessories-79/34936-1-6l-greddy-kit-replacement-downpipe-fla-250-univ-2b-big.jpg?dateline=1329965665)
FM:
You can mix & match sizes (though not recommended) using my DP/cat/exhaust because I use flanges with slotted bolt holes, but not with FM or any other flange that uses a specific bolt center to bolt center distance. Hope that makes sense. Visual aid:
Mine:
![](https://www.miataturbo.net/attachments/artech-fabrication-miata-accessories-79/34936-1-6l-greddy-kit-replacement-downpipe-fla-250-univ-2b-big.jpg?dateline=1329965665)
FM:
![](https://www.miataturbo.net/attachments/artech-fabrication-miata-accessories-79/34937-1-6l-greddy-kit-replacement-downpipe-img_9430.jpg?dateline=1329965665)
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