muffler recommendations?

[2006explorV6]

Hi all,


I currently have a Flowmaster 40-series hooked to dual exhaust pipes. This thing is LOUD. So loud in fact, that I have already gotten an illegal exhaust ticket. Basically, I want to change this to a muffler that will offer similar airflow (I am getting 2+ MPG extra) while being nearly as quiet as the stock muffler. Cost is an issue, I am trying to save money. Please recommend something that is cheap, quiet, and offers surprisingly good airflow.

I have found some flowmaster 50-series and 70-series that fits the bill, but unfortunately it is $150+.


Any recommendations would be appreciated.

 

[IZwack]

Dynomax SuperTurbo would be my recommendation. Dunno what the price is for your vehicle though. Next would be a Gibson.

 

[2006explorV6]

Is there a site that compares sound of mufflers in dB?

 

[2006explorV6]

Also, I have heard that the DynoMax SuperTurbo has fiberglass dampening on the inside, which means that over time it will get much louder as it wears off?

 

[Blacksheep Josh]

I didn't realize that a 40 series was that loud. I have one, and if I ever get pulled over I'm going to be very surprised, I think it's a perfect loudness.

What about switching to a single in single out muffler, with a larger tail pipe? It'll still be louder then stock, but I wouldn't think as loud as 2 pipes.

 

[2006explorV6]

Im currently running single-in single-out to the 40-series and then a Y split to dual 3" exhaust tips.

The Flowmaster 40-series is THE hands-down absolute loudest muffler on the market that doesn't have an offroad-use only sticker. Go to Advance Auto Parts. They have a list of like 15 mufflers and the 40-series is at the very top of the curve as the loudest muffler they sell. Driving up a hill the roar is DEAFENING..... although everyone does think my 4.0 v6 is a 5.2 v8.... My girlfriend HATES it, it drones in the cabin like crazy and between that and my dual 15" subs, I can't even hear her talk in the car anymore..... on second thought I am considering keeping the 40-series ;-) j/k


I am trying to decide between the Dynomax Super Turbo and the Borla ProXS..... I wish it was easier to get max flow stats in CFM for each and dB ratings for each.... although in every chart ive seen (10+ mufflers compared) the Borla is the quietest.... Any recommendations?

 

[turbo cat]

hooker max flow theres a clip on youtube of a 4.0 with a max flow its sounds good and its a strait thru muffler which will grant you more torque and HP over a baffled rustmaster
http://www.youtube.com/watch?v=tFkJJhhafLM
http://www.youtube.com/watch?v=45cDQvDM-K4

 

[HahnsB2]

Im currently running single-in single-out to the 40-series and then a Y split to dual 3" exhaust tips.

The Flowmaster 40-series is THE hands-down absolute loudest muffler on the market that doesn't have an offroad-use only sticker. Go to Advance Auto Parts. They have a list of like 15 mufflers and the 40-series is at the very top of the curve as the loudest muffler they sell. Driving up a hill the roar is DEAFENING..... although everyone does think my 4.0 v6 is a 5.2 v8.... My girlfriend HATES it, it drones in the cabin like crazy and between that and my dual 15" subs, I can't even hear her talk in the car anymore..... on second thought I am considering keeping the 40-series ;-) j/k


I am trying to decide between the Dynomax Super Turbo and the Borla ProXS..... I wish it was easier to get max flow stats in CFM for each and dB ratings for each.... although in every chart ive seen (10+ mufflers compared) the Borla is the quietest.... Any recommendations?

Do you still have cats? In all my experience the Flow 40 isn't very loud until you start running aftermarket cats/ no cats. I've heard plenty of 4.0s with flow 40 systems with stock cats and they aren't very loud. When I had no cats and my 40 dumping before the rear tire it was headache loud for my passengers, a single aftermarket cat made a big difference. Also it doesn't dump underneath your rig does it?

 

[huntersteve61]

I ran suv 50 and man was that a sweet sounding muffler... loud enough you knew something was done but it sounded good... a v6 too loud sounds bad.. a toned v6 sounds sweet.. you will be happy.. advance for 90 bucks bro good luck

 

[Sams01XplrSprt]

2006 u got sound clip of ur exhaust or video of it

 

[CALDWELL]

theres a thread on the website about different mufflers and there Db ratings on here...

try a DELTA FLOW 40 Series... loud enough so you know its there but really quiet on the highway just cruising in the lower RPM's...

 

[CALDWELL]

http://www.explorerforum.com/forums/showthread.php?p=1890095&posted=1#post1890095


heres the thread i was talking about with the Db levels

Danny

 

[X DEACON]

Magnaflow!

 

[X~FACTOR]

I currently have a Flowmaster 40-series hooked to dual exhaust pipes. This thing is LOUD. So loud in fact, that I have already gotten an illegal exhaust ticket. Basically, I want to change this to a muffler that will offer similar airflow (I am getting 2+ MPG extra) while being nearly as quiet as the stock muffler.

I'm in the same boat as you. My thoughts is I will get pulled over for a LOUD exhaust. Its just a matter of time. The drone at 2k RPM is unbearable too. But unlike you, I don't see the extra MPG. In fact, I see the opposite. I think I might be loosing 2 MPG because of it. I have a couple of fixes to eliminate the drone and the loudness but if I can't figure out loosing MPG, I might have to ditch this exhaust.