Cat Delete issues?
Senior User
Joined: Jul 2007
Posts: 117
Likes: 0
From: Columbus, OH
you can click on the link below to get an idea of the sound difference. the "after" video on mine is with the cat deleted.
Turn your sound WAY up and you will most definately hear a difference. This, however, only hints at the sound you will hear going down the road at WOT.
MBRP cat delete video
Turn your sound WAY up and you will most definately hear a difference. This, however, only hints at the sound you will hear going down the road at WOT.
MBRP cat delete video
Senior User
Joined: Jul 2007
Posts: 117
Likes: 0
From: Columbus, OH
Originally Posted by HeavyAssault
FASTCOTE: Did you leave the MBRP muffler in?
My main goal was heat reduction, the sound was a pleasant bonus.
I thought it might cross over into the "obnoxious" range if i went straight pipe all the way. The way it is now is a good blend of mellow at light throttle and a sharp, throaty growl at WOT.
I'll try and capture some underway video to try and show it off better.
Last edited by FastCote; Oct 24, 2007 at 12:12 PM.
Fleet Mechanic
Joined: Jun 2006
Posts: 1,589
Likes: 20
The Sounds at Both Ends Are Great!!
I have a JOBE intake and 4" MBRP T back with cat delete pipe and MBRP muffler. The tailpipe sound is great and the turbo whine turns heads no matter where I am. When my X idles it sounds like a small jet engine at idle.
Funny story. I had a COP pull up behind me at the Navy base where I work and ask me how I got my turbo to whine so loud. We had a long discussion and I showed him my mods. Then he said he had a Dodge and did not know why his truck did not whine like mine. Man did I bite my lower lip hard.
You know what I was thinking
DSMMH
Funny story. I had a COP pull up behind me at the Navy base where I work and ask me how I got my turbo to whine so loud. We had a long discussion and I showed him my mods. Then he said he had a Dodge and did not know why his truck did not whine like mine. Man did I bite my lower lip hard.
You know what I was thinking
DSMMH
Junior User
Joined: May 2005
Posts: 98
Likes: 0
From: Palermo, NJ
Originally Posted by FastCote
Yes, muffler still in.
My main goal was heat reduction, the sound was a pleasant bonus.
I thought it might cross over into the "obnoxious" range if i went straight pipe all the way. The way it is now is a good blend of mellow at light throttle and a sharp, throaty growl at WOT.
I'll try and capture some underway video to try and show it off better.
My main goal was heat reduction, the sound was a pleasant bonus.
I thought it might cross over into the "obnoxious" range if i went straight pipe all the way. The way it is now is a good blend of mellow at light throttle and a sharp, throaty growl at WOT.
I'll try and capture some underway video to try and show it off better.
Cheers,
Neil
Tuned
Joined: Mar 2007
Posts: 342
Likes: 1
From: South central kansas
I have already noticed with my exhaust with the cat still in there was hardly any temp drop, matter of fact I kinda wonder if it didn't go up just a bit. I realize the cat is a slight restriction to the rest of the exhaust, but it shouldn't be that much should it? How hard is it to remove the cat delete pipe and put the cat back in?? It took me jsut over 3 hours to put the turbo back mbrp on, if that helps determine how fast I could change a cat in and out.
Cargo Master
Joined: May 2002
Posts: 3,271
Likes: 229
From: Gulf Coast, FL
FASTCOTE: I figured you had the muffler in from the sound. Using a muff delete pipe will get you some more whistle. I'll post my exhaust video link and maybe use an angle like you did for your video for a new video.
FIREMAN660R: I could swap in my cat back in place in under 30 mins. Just prep everything the day prior and it's easy.
FORDSDOWNER: Didn't mean to get this post off track but it's up to you and your local laws. I will always suggest using a system that will allow you to remove/reinstall the cat as desired for the sound or warranty work. My truck has more whistle than FASTCOTE, mixed in with some serious airflow sound from the tail pipe. She rumbles really nice at 2200-2400 rpms.
FIREMAN660R: I could swap in my cat back in place in under 30 mins. Just prep everything the day prior and it's easy.
FORDSDOWNER: Didn't mean to get this post off track but it's up to you and your local laws. I will always suggest using a system that will allow you to remove/reinstall the cat as desired for the sound or warranty work. My truck has more whistle than FASTCOTE, mixed in with some serious airflow sound from the tail pipe. She rumbles really nice at 2200-2400 rpms.
Senior User
Joined: Jul 2007
Posts: 117
Likes: 0
From: Columbus, OH
I forgot to mention in my post that my videos were shot on different days. the AFTER video was shot on a really windy day (notice the leaves blowing by. My video cam really cuts the audio down when there is wind. That all but eliminated the high frequency turbine sounds in the recording.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!
Joe Kucinski
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!
Michael S. Palmer
The Best F-150 Deal of Every Trim Level (XL through Raptor)
Joe Kucinski
Cargo Master
Joined: May 2002
Posts: 3,271
Likes: 229
From: Gulf Coast, FL
Senior User
Joined: Jul 2007
Posts: 117
Likes: 0
From: Columbus, OH
Originally Posted by HeavyAssault
SURE it did...............lol
click here for Rolling exhaust video
Make sure you guys turn your sound way up. Prepare to be envious.
