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AC0QR 06-18-2011 03:34 PM

Magnaflow direct-fit cat heads-up
Just installed a "magnaflow direct-fit" catalytic converter & down-pipe into my '98 TJ 4.0L. (Magnaflow 23227 - MAGNAFLOW Performance Direct Fit Catalytic Converter for 97-99 Jeep® Wrangler TJ with 4.0L Engine - Quadratec)

The holes in the down-pipe-to-header flange (between the oil pan & front driveshaft) were spaced 1/8" (0.125") too wide, and wouldn't fit properly. The flange bolted up after I walked a 7/16ths drill bit around in each hole. :)

Hopefully the next person who does this install won't spend 3hrs banging around under the truck trying to figure what's not fitting right.

gumby25 06-13-2013 01:37 PM

Im in the process of doing this right now and ran into this issue. Did you have any issues with it fitting tight at that connection after enlarging the holes?

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