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I'm planning on dumping Flowmaster on my 4.6 L F150. I want something with a good roar and I don't mind a little resonance in the cab but not a whole lot. So far I've narrowed it down to Super 40, 40 Series Delta Flow, Super 50, 50 Series, and 50 Series Delta Flow. Any suggestions on the best one that suits my needs? Also, is there much differences in the 50 Series, and 50 Series Delta Flow?
May I suggest Allied resonators.........
I would recommend saving a lot of money & go with Allied resonators......available is any muffler shop nationwide, are of excellent quality, 1/2 the price of “performance Mufflers”, available in any length from 10" to 38" (IIRR), flow as good as Borla or most any of the "Race Mufflers”, tone is deeper and you get a nice rumble (low) with no drone. Allied has been made for at least 30 years and available in just about any diameter you would require (I have personally run these for since the 1970's....nice low rumble on accell & decell, no drone, deep tone.
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.