I was looking to replace and/or update the muffler on my Sport-trac. Talked to a mechanic who said that the muffler on those trucks did not have much of a restriction and updating to a Flow-master would not provide much of a performance increase.
I just found some websites that demonstrated the Flow-master 40 series, and I thought that they sounded really good.
Just need to find a muffler shop in my area that I can trust to get the update on correctly ?
From the explorer forum’s it seems like most are going more for the sound of them, you’ll probably only gain about 5hp but will sound like it’s gained more like 30.
I have been using Walker Dynomax Turbo mufflers on my trucks, they are inexpensive, $40 to $50 and noise is not an issue.
I replaced the noisy muffler on my 1995 Ram in 2005 and regret not replacing it earlier, the increase in mid-range torque was a benefit while towing. My next truck I replaced the factory muffler less than a year after purchase, the compromise in sound is well worth the $50.
Any after market muffler will improve performance, avoid those high priced systems, they focus on tone or noise.
The videos of the sound mean nothing to us, only to you. A car’s sound is very personal. One persons sweet exhaust music is nothing but noise to another… you should be getting that from reading the posts…
I’d suggest wandering around a SportTrac forum to see if anybody that actually owns one has FM 40’s on their truck with the same engine (you didn’t tells us that either) and now complains about drone or too much noise in the cabin.
FWIW, I’ve swapped the stock mufflers on my Mustang to 50-state legal sport mufflers from Ford. I can tell little to no difference in the cabin, windows up, but have gotten several compliments in traffic. Plus, I like how it sounds with the windows down.
Keep in mind the sound you hear in those clips are from V8’s and not representative of the sound you will get out of your Sport-Trac’s V6. It’s not going to sound like 5.7L Hemi or a warmed over 408 stroker.
I have 49-state legal Ford Racing (Borla) mufflers on my Mustang GT, (IIRC they are basically rebranded Borla S-Types) along with long tube headers and an X pipe in place of the factory suitcase resonator. It’s a bit loud, and a bit too raspy for my tastes currently, so I’m considering adding some in-line resonators to calm the exhaust note down a bit. I’m still on the fence about it though. My F-150 is bone stock, and I’m not interested in making it louder, as the 3.5L Ecoboost doesn’t have a pleasing exhaust note to me to begin with.
The world does not need another horrible sounding V-6 exhaust on the road . The HP gain will so little as to not even be worth measuring. As for better miles per gallon , proper tire pressure , limit idling , short trips and use sensible driving will do more good but still not be anything to brag about.