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Unread 06-24-2003, 02:45 PM   #1
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Join Date: May 2003
Posts: 5
factory exhaust

does anyone know what size (diameter) the factory exhaust on a '98 Jeep GC w/ a 4.0 I6 is?

furthermore...i'm in the market for some performance upgrades...is it worth getting a whole catback system to replace the exhaust or is it ok to just get a high-flow catalytic converter and a flowmaster?


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Unread 06-24-2003, 04:29 PM   #2
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2.25 through the cat to the muffler, and 2" after the muffler, might as well go for teh catback, most of the time you get a full stainless system, and the diameter it increased(good), if you can in ur state, just cut the cat off ,might as well
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Retired:1994 JGC Laredo I6 4.0L, Smittybilt Outland brush guard, 1 3/4" Daystar coil spacers, custom air intake with tube K&N, Borla cat-back, KC Daylighters 6" 150w stainless steel, Xenon superwhite headlights 85/100w, 235/75/15 Pirelli Scorpian A/T, billit aluminum grill inserts
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