5.4 l exaust
Thread Starter
|
Senior User
Joined: Oct 2009
Posts: 225
Likes: 0
From: dodge, north dakota
5.4 l exaust
My buddies has a 1997 ford f150 and he put dual straights on it but he left the cats on and its not near as loud as he wants it to be. So what my question is can you take the cats off of that year pickup and put your sensors back in? Or is there another way to do the exaust that it can be loud and still leave the cats on?
Thanks
Lane
Thanks
Lane
Postmaster
Joined: Oct 2009
Posts: 3,432
Likes: 7
From a legal standpoint, no. From a practical standpoint, maybe. Modern Ford are intended to be quiet, Ford put a lot of engineering into that point. The truck is made from what Ford calls quiet steel, they use a very good yet cost effective insulation, etc.
If the rear converters are not monitored, you could take them out without any lights coming on. But the legal alternative is to replace them with actual high flow cats. By high flow I don't mean some $60 Magnaflow. Those are just ordinary cats with a Fancy brand name. I mean a $200 high performance converter.
If it were me, I would leave it alone. Heres basically what I see. John Doe want a loud system. He puts on a high performance muffler. Its still no loud enough. So he chops it off and switches to glasspacks. Still not loud enough. So a friend tell him if he removes the cats it will get louder. John does so, and the results are what he wanted. 6 months later it starts to get annoying. The truck has more bark than bite, and it is loud all the time. At this point he wants the sound he had when the cats were still there.
I have been through that cycle myself, and have had countless customers tell me the same story.
If the rear converters are not monitored, you could take them out without any lights coming on. But the legal alternative is to replace them with actual high flow cats. By high flow I don't mean some $60 Magnaflow. Those are just ordinary cats with a Fancy brand name. I mean a $200 high performance converter.
If it were me, I would leave it alone. Heres basically what I see. John Doe want a loud system. He puts on a high performance muffler. Its still no loud enough. So he chops it off and switches to glasspacks. Still not loud enough. So a friend tell him if he removes the cats it will get louder. John does so, and the results are what he wanted. 6 months later it starts to get annoying. The truck has more bark than bite, and it is loud all the time. At this point he wants the sound he had when the cats were still there.
I have been through that cycle myself, and have had countless customers tell me the same story.
Senior User
Joined: May 2008
Posts: 156
Likes: 0
From: Slidell, LA
I put my exhaust on my truck and it is very loud. These trucks have 2 cats and 2 preheaters. i took off the cats and left the preheaters. the sensors are in the preheaters, so the check engine light does not come on.
Elder User
Joined: May 2004
Posts: 648
Likes: 0
From: sanford
LOUD = Fast L L L
Trending Topics
Posting Guru
Joined: Apr 2006
Posts: 1,218
Likes: 0
From: Fl
Ive got no cats or preheats, headers with dual flowmaster 40's. I love it and so does everyone whos heard it.
Yes I do have a CL on, but no problems. Been like it for 4 years now.
Yes I do have a CL on, but no problems. Been like it for 4 years now.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
