Has anyone used the Flow Master 40 Delta Flow mufflers? They say they are slightly quieter then the regular Flow Master 40's.

Im adding a FM40 to my 4.2 truck. Single in /Dual out. 2.5 in and 2.25 out.

Please tell me what you think. I want something pretty loud (louder then most other trucks . But not crazy.

Thanks

 

I was at a muffler shop today asking him the same question. The Delta Flow technology reduces the resonance of the muffler inside the car while keeping the sound outside the same. I was told the only difference in the 2 mufflers is that the Delta Flow is quieter inside. I am getting a Delta installed on Friday so I will let you know.

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2001 F-150 Super Cab 5.4L 2WD 3.55LS
Black / Dark Graphite Interior
[*] 6" RCD Lift[*] Weld Outback 16X8.25 Wheels[*] BFG MT 35's[*] Billet Grill[*] LineX Bedliner[*] Leather Seats[*] Tow Package[*] Captains Chairs

Coming Attractions:
[*] Exhaust (FM or Gibson)[*] Tint[*] Stereo System

Will Post Pictures When Done!

 

I should have mine installed tomorrow (friday) aswell. I was told the same thing by the sales rep around here. As long as it sounds pretty much the same on the outside I will be happy. Since I have the V6 I will need it fairly loud.

I guess we can compare opinions when we both get them.

 

Do your self a favor. Before you install your FM's go to the web site of the best mufflers made. http://www.spintechmufflers.com


[This message has been edited by Sprintsrule (edited 06-28-2001).]

[This message has been edited by Sprintsrule (edited 06-28-2001).]

 

Too late. Just picked up my FM 40 Deltaflow and my 24" x 3" vibrant tips. Installing tomorrow I hope.

 

i love my flowmaster race mufflers not really sure what series they are but they are the least restrictive flowmaster makes!
JJ

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97 4x4 Off Road Package 4.6l, Flareside S/C Dark Toreador Red
www.f150world.com/southernthunder






since 6/27/01

[This message has been edited by Jimmy Lee (edited 06-28-2001).]

 

I've got the Delta Flow 40s on my truck with SI/DO and it is plenty loud for me but not overwhelming. At about 1800-1900 rpm it does drone a little in the cab but nothing your stereo won't fix I'd go with the FM because they are cheaper than some other performance mufflers and I am very happy with mine.

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1997 F-150 XLT 4x2 SC 4.6L
Flowmaster 40 Series Delta Flow with 3.5"x22" Chrome Slash Cut Tips
Kicker 8" Subwoofer
200 Watt Amp

http://www.F150online.com/offroadguy

Being Installed on 06.27.2001:
-6" ProComp Stage II Pro-Ride Lift
-35" ProComp AT Tires
-American Racing Baja 16x8 Wheels

Future Mods:
-4.56 Gears
-3" PA Body Lift
-Stull Billet Grille
-Clear Corner Lenses
-Euro Taillights