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Yes that said 30 series, the "top ten shootout" muffler. Installed one on my 04 f150 4.6 and the sound level and quality is killer. If im motoring along on the freeway, you can barely hear it, its fairly reserved at idle but its nice and loud under throttle. Also talk about a SOTP difference, feels like a totally different truck now that the school bus muffler is off of there.
hehe whoops. im not sure if its a race muffler its what they include in their "force II " systems, and that is supposed to be their quieter system than the american thunder one which uses the 40 series. Very similar to the 40 series, just less drone, and a little different noise.
hehe whoops. im not sure if its a race muffler its what they include in their "force II " systems, and that is supposed to be their quieter system than the american thunder one which uses the 40 series. Very similar to the 40 series, just less drone, and a little different noise.
I thought the Force II uses a 50 series? From what you described the tone and drone it sounds like a 50 series.
Well the force II system part # 17152 uses a muffler part #53033 which is described as "30 Series Top Ten Muffler, 3.00" IN (O) / OUT (O): each. The 30 Series™ offers a deep, powerful tone. The sound level is a little quieter than the 50 Series™ outside of the vehicle, but with more of the "Flowmaster tone." The combination of added volume and the unique Low Pressure Balance Chamber creates a larger low pressure area in front of the Power Chamber® than the 50 Series™ muffler. This leads to better scavenging of exhaust gases, and delivers a sound that is unique to the 30 Series.™ The Top Ten® muffler was developed during years of grass-roots participation in the Fastest Street Car Shootout™ series. After repeated 200 mph passes down the race track and numerous record setting achievements, we have evolved this racing technology into our 30 Series™ line of street and strip mufflers. "
long post but i think it explains it.
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