Which is going to be louder? I want a little better than stock, because I drive 50 miles a day, I don't want it to drone in the cab

 

The 40's are louder than the 50's. Flowmaster also makes 40 and 50 series 'Deltaflow' mufflers that reduce the incab noise levels while still producing that Flowmaster sound out the tailpipe.

I have the 50 series deltaflow muffler exiting through a single 3" tailpipe. With the windows up I can hear a nice hum, with the windows down I hear Barry White crooning...

Tom in Tacoma

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1998 F150 XLT S/C 4.6L Auto, 3.55LS, 4X2, Moonlight Blue, all the factory bells & whistles except for leather seats.

• Lund Deflector
• Lund Premier Tonneau Cover
• K&N Filter
• Body-color painted Throttle Cover
• Blue wire-looms
• Pentaliner S/R
• Window tint
• Ford side-steps
• Infiniti component speakers - front
• Polk Audio speakers - back
• Superchip (OH YEAH!!)
• Flowmaster 50 Series 'Delta-Flow' w/ 3" pipe
• Clear turn signal lenses

Tom in Tacoma

(Washington not Toyota)
Go check out http://communities.msn.com/SS97FordsPics for the second best website for F150's

 

Rich- 40s are louder; their website has graphs of all their sound values. If you want "a little better than stock" than you might consider that this is the loudest muffler FM makes, and one of the loudest mufflers anyone makes. Personally I like loud and throaty; just FYI.

------------------
2000 F-150 XL,RC,LB,5.4,4R70W,3.55LS,
Class III tow/Payload #3/Convenience pkgs.,
4-wheel disc/ABS,Chestnut/Parchment 40/60,
Ford bedliner & gas/wheel/spare locks,
3" cold air box modification,Superchip,
Dynomax ultra-flow welded 3" cat-back.

 

I've posted this before because I have used both.There is NO sound level difference on our trucks.Only a tone difference.50's are deeper in tone.40's have an awfle drone @65 mph.I started with the 50 and wanted louder at idle.Went to the 40.Absolutely NO sound level difference-ONLY tone.To prove this I talked my dad into installing my old 50 series.So,I have the 5.4L with the 40,and he has the 4.6L with a 50.Sitting side by side with both trucks idling-No difference. Accelerating his is deeper and cruising mine has awfle drone. I've used 40's on a Z28 and they were awesome.Beautiful,RAW sound. Just not the same on our trucks with the 4 converters. If you want deep-get the 50. If you want a slightly more open sound get the 40 with the Delta Technology.Believe me, the regular 40 sucks while driving and it is NOT louder.Drone is very annoying while on trips.

 

Thanks for the info guys, but I forgot to mention that I have a 96 F150 with the 302. I did however lease my 97, but lease was up and buying my first home was a must. I think that I am going to just buy a muffler and do it myself, I think I can bring it to midas or something and save a buck or so.....
Rich

 

My 40 series sounds kick a$$!

http://www.angelfire.com/ok3/ponysix8/images/T005.wav
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Patrick aka Mudder or MR.Daylighter of Arlington Texas (D/FW), member of the Texas Chapter club DAYLIGHTER edition F150 ®, Black 98 S/S S/C F150 4x4 0RP 5.4 V8 3.55ls, Ramsey Pro 8000 hidden winch, Grizzly roll bar, Superwhite Bulbs, 2 Baja back up lights, 2 KC 57 Series 5x7 100 watt long range lights, 8 165 watt KC Daylighters, 4 chrome, 4 black ( with 10 KC's, I come alive at night), Manik grill guard, Westin step bars, Rhino Taillight guards (thanks Pony), Magnum bug shield, Sonic aluminum treadplate 36" tool box, Flowmaster 40 series dual exhaust, Airaid High Flow system, Edelbrock IAS shocks, 285/75/16 BFG AT/S KO, American Racing Baja wheels, personalized plates, Cobra CB radio with 3' whip antenna, Escort Laser/Radar detector, Nokia cell phone, a Mobil Speed Pass on the back window, a F150 Online sticker, and a DAYLIGHTER sticker on the front windshield, and yes, I also have been infected with the infamous door crack. More to come for the Daylighter: JBA headers, superchip, 4 more Daylighters, and a Lighted Ford tailgate logo. If you would like to see pics, email me at mudder46@hotmail.com or see pics at me and pony's website www.angelfire.com/ok3/ponysix8 , and to hear the Flowmaster exhaust http://www.angelfire.com/ok3/ponysix8/images/T005.wav
Also the Moderator of the Ford Trucks vs. GM trucks forum over on fordvschevy.com so check it out.
Check out the Toughest SOB in the WWF crush the Rock's Lincoln: http://www.amta.net/files/sc-2.avi
OH HELL YEAH!

2 BRT 4U "Go ahead, flash your brights at me, see what will happen."

Got light?


[This message has been edited by mudder (edited 07-10-2000).]

[This message has been edited by mudder (edited 07-10-2000).]

 

Hey Max Mitchell.
You said you like the loud sound yourself. IS your Dynomax ultra-flow welded 3" cat-back a loud muffler. Louder maybe even than the flowmaster?

 

split- the Dynomax Ultra-flows are loud. The Dynomax tech guy told me that they were a few decibles quieter that reg FM 40s. Both are loud. This muffler is a straight through design (no baffles or chambers). It sounds like a Z-28 on steroids. Not bothersome at highway speeds, very deep at certain rpm/load, very pleasing if you want that kind of sound.

------------------
2000 F-150 XL,RC,LB,5.4,4R70W,3.55LS,
Class III tow/Payload #3/Convenience pkgs.,
4-wheel disc/ABS,Chestnut/Parchment 40/60,
Ford bedliner & gas/wheel/spare locks,
3" cold air box modification, Superchip,
Dynomax ultra-flow welded 3" cat-back,
3" exit Y-pipe, Hellwig rear anti-sway bar.