I'm looking to put an exhaust sysem on my 5.4L and I am looking for the loudest sound is it the flowmaster 40 or 50 or is it not flowmaster at all? Borla? im also looking to add headers any opinions?

 

I can tell ya that the Gibson SuperTruck is VERY loud... too loud for my taste, but the sound is very good (just too much of it).

 

The FM 40 reg & the Dynomax Ultra-flow are both loud and throaty.

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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.

 

I have both the Borla and Gibson super truck. The Borla is great quality and performance, but it is not loud. The Super Truck is great, good performance, great sound, especially WOT, and the interior resonance is low. If you want it LOUD inside and out, go with the FM 2 chambers (40 series).

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2000 Sport,Black,5.4L, 3.55 LS,Rear 2in drop, Gibson Super truck, K&N.
86 5.0 Mustang LX w/off road h-pipe, Borla catback, FMS 65mm TB, K&N, Mac Racers choice shifter, MSD-6A,180 Degree thermostat,14 Degrees timing

 

hey fellas,
i have to tell you this...straight pipes have a better sound than any of the above mentioned systems at a much lower cost...listen to one with the straights and you'll see...Rich

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-1999 F-150 4X4 SC
-4.6, auto
-3.55 gears
-Westin chrome nerf bars
-dual straight pipes
-hikerdadrich@aol.com

 

FYI- FM 40 series are louder than FM 50 series. I do know FM 40's are too loud for me.

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F150IslandBoy
1997 F150 Lariat
SuperCab, Toreador Red w/ Gold, Styleside, 4.6L, A/T, A/C, 3.55 3800 Limited Slip, Class 3 Tow Package, Leather Captain Seats, Sliding Rear Window.
Modifications:
Airaid FIPK, Flowmaster Delta Flow 50 Series, Bugflector II, Viper 500ESP Alarm, Pendaliner Bedliner, Cobra Trapshooter 3 Radar Detector, CARR Tubular Nerf Bars, NFA 1400 Compact 55W=>85W Halogen O.E. Lights, Durango 255/70R16, Chrome eyelet tie downs, Smoked front lic. plate cover.

 

If your looking for the loudest sound do not use any mufflers. Remove the factory muffler at the clamp after the Y pipe. From there have another Y pipe installed and have duel 2 1/4" pipes run out to the back bumper. Add some 3 1/2" X 12" crome tips. I did this and it sounds awsome. A very deep rumble. The noise in the cab is minimal at highway speeds also. You local muffler shop should charge between $150 and $175 for this. I did this and removed the air snorkle on the fender well. I used a 3" rubber PVC pipe joint in its place. With these two mods you should feel better throttle response and get an increase of 1.5mpg.

 

That Gibson super truck exhaust or whatever gibson exhaust that is in the product review on this site sounds like ****. It sounds like factory exhaust reving up.

 

2fords

You say the interior resonance of the Super Truck is very low. Do you get any drone in the cab?

Rock

Did you listen to both files?

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1998 F150 4x4 Lariat Supercab Flareside 5.4L in Oxford White/gold, ORP, Tow Package, 3.55 Gears.

Modifications: K&N FIPK, Stepshield door sill protectors, Performance Accesories 3" body lift and Lift Lips.

See photos at <A HREF="http://www.communicomgroup.com/jmtruck

" TARGET=_blank>www.communicomgroup.com/jmtruck

</A>

 

yes i listened to both and I couldnt tell much difference between the two.