Chop it in front of the cat add alittle straight pipe and then just use the factor tail pipe to exit in front of the rear tire fab up some hangers done and done...that is if you're looking for ghetto and cheap/free.
-
June's Cummins of the Month is now open for entries! SUMMER FUN
7.3l ghetto exhaust options?
we have a 99 7.3l and have it hopped up a bit. this is our lease/work truck and doesn't get on the road. well we have thought about chopping the exhaust off and running just 3.5" straight pipe. would i benefit from just dumping the muffler? or is the cat a big restriction too? right now the truck has a custom 6 pos. 140hp tune and intake but we run it on the 80hp tune as it feels like it makes the best power. is the cat on these trucks a big restriction?
1 - 2 of 10 Posts
I BELIEVE, but I'm not sure that he meant like Deer Lease or oil well lease...I would take the CAT off they do rob alot of flow and hollowing them out is a PIA so yeah cut it offIf it is a leased vehicle, modifying the emissions equipment might violate your lease agreement.
But those cats rob flow, rip it off
1 - 2 of 10 Posts
- This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Cummins Diesel Forum
A forum community dedicated to all things Cummins Diesel! Originally founded for owners and enthusiasts of Cummins powered Dodge pickups, the Cummins Forum has expanded to include ALL Cummins Engine applications! Come join the discussion about reviews, drivetrain swaps, turbos, modifications, classifieds, builds, troubleshooting, maintenance, and more!
Full Forum Listing
Top Contributors this Month
View All
the man in black
393 Replies
Jimmy N.
378 Replies
dieselenthusiast
315 Replies
