flowmaster 40
Thread Starter
|
Junior User
Joined: Mar 2012
Posts: 50
Likes: 0
flowmaster 40
So I recently put a Flowmaster orig 40 series on my 90' f150 n not much of a roar, but I heard they get louder after a certain amount of miles, have any of you heard or experienced this
Senior User
Joined: Sep 2011
Posts: 127
Likes: 0
From: Sumter, SC
No, it is usually mufflers that have some kind of sound dampening material in them that get louder when they have lots of miles on them. The Flowmasters have nothing inside of them but chambers and a wing plate, so they won't get any louder.
Posting Guru
Joined: May 2012
Posts: 1,271
Likes: 9
From: Franklin, IN
Chambered mufflers like your flow master will not get any louder over time. Mufflers that have packing in them like glass packs and turbo mufflers will, due to the fact that the packing will slowly blow out of the muffler. If you want a bit more volume but still want that chambered sound, you should look into something like the cherry bomb extremes
Logistics Pro
Joined: Mar 2011
Posts: 4,197
Likes: 558
From: Central Wisconsin
Do you have your cat converter on the truck still? Those usually muffle sound better than a muffler. I hope you have a V8 and not an I6 if you really want to hear it. Bigger pipe will also give a little more volume.
Trending Topics
Hotshot
Joined: Sep 2001
Posts: 11,958
Likes: 228
Swap the Blowmaster out for a Dynomax race bullet. That should sound good with the cats. Either that or just straight pipe it after the cats.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
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
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Logistics Pro
Joined: Mar 2011
Posts: 4,197
Likes: 558
From: Central Wisconsin
Well if he's just looking for more volume, why even waste money on a bullet? its just as loud with that $30-$40 chunk of pipe as it is without it. To really get any volume out of your motor, you're going to have to remove the cat though. If you have to get your truck inspected, they won't like that too much however. Im in a real rural area where we don't have inspections, I started with just a cat and no muffler and it was pretty quiet. No real growl or anything, and I was just running a Flowmaster 50 series big block muffler behind my 351w. All 3" pipe from the headers into a y pipe and out after the tire on the passenger side. It was real mellow in town but anywhere past 3k RPMs and it sounded mean as hell. I switched to the Summit Street and Strip (identical to flowmaster 40 for less than half the price) and it's too loud for in town to the point that my neighbor has called the cops on me when I first put it together to see how it sounded (he's not a real friendly guy). I don't street it anymore so it's not an issue. Point being that your cat is holding the sound back. But those 40 series mufflers scream at higher RPM's and might get you in trouble.
Senior User
Joined: Jun 2012
Posts: 139
Likes: 0
I was running just the cat and pipes before I put on the Flowmaster and I thought it was too loud. Whoever put those pipes on before I bought the truck used the smaller 2" pipe and ran duals off the cat, it looked good but was too loud and eventually the pipes rusted up so bad I had to do something with the exhaust.
Thread
Thread Starter
Forum
Replies
Last Post