Join Date: Oct 2009
Location: Durand, IL
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The Diamond Eye kits allow you to bolt the cat back up. Their downpipes have a ball flange on the end. I have only installed exhaust on two trucks, both Diamond Eye, I just cut right in front of the cat to keep the female part of the flange, and bolted the rest up to create a straight pipe. I bet you could get a cat delete pipe when you want a straight pipe and take it out and install your cat to make it look good for inspection.
97' F-250HD. ECLB. 66,000 miles. 7.3. E40D. 6637 Filter. 5" Exhaust. Deleted EBPV. CCV mod. 45 gal. Transferflow Rear Tank. Stock for now. Dana 60 in the works.
97' F-250HD. ECLB. 18x,xxx miles. 7.3. E40D. 6637 Filter. 4" Exhaust. TW Tunes. Work Truck.
97' F-250HD. ECLB. 150,000 miles. 7.3. E40D. 4" Exhaust. Work Truck.