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* Around 65 - 70 mph, there is interior resonance that I just don't like. After several months of use, the lovely black paint has almost all burnt off. * Not a stainless steel construction, instead it is painted. I was hoping that I would, but it remained unchanged. The loss in low end power is enough for me to notice, but not enough to make much of a difference. The horsepower gains that are claimed are true, however, the increased horsepower is found at the higher RPMs. With high flow mufflers like this one, this can be common. It still sounds really great in my opinion, it's just not quite what I expected.Īs far as performance is concerned, I feel that I have lost a little low end power. From day 1, I have been very impressed with the sound of it.īetween.5 & 2 RPM's the sound is very throaty and deep, especially when I an really on it, however as my RPM's increase above 2.5, the sound from the cab get a little quieter and the rev of the engine takes over the sound from the tail pipe. The shop simply cut out the stock muffler and installed the new one. I ordered the muffler online, and when it came I took it and the truck to a local muffler shop and had it installed. I put this muffler on a 2001 Toyota Tundra 4.7 Liter V8.
Flowmaster super 40 muffler series#
I have not heard the interior resonance of a delta flow, but the Super 40 Series still has quite a bit of interior resonance. According to "The Super 40 has that "deep powerful" sound of the original 40 series but with all the benefits of performance and low interior resonance from the "Delta Flow technology." I have to say that I agree with the fact that it has a deep powerful sound, however, the interior resonance is significant. Flowmaster claims it to be one of their loudest, high flow mufflers. I purchased the Flowmaster Super 40 Series Muffler. There is a lot to choose from out there, all with their unique benefits and sound.
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19, 2009 - PRLog - There are many that are considering buying an aftermarket muffler for their vehicle. Everyone has a different opinion about what sounds good and what doesn’t after all.Nov. Listening to the different models is the best way to decide which one is best and which should be avoided.
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The muffler is significantly quieter, to a level that some owners will complain about it not putting out enough sound.Įven though each of the different Flowmaster 40 series products are similar, they are different in their own ways. If you’re after a bit of a throaty growl, with a much more toned down sound, that’s exactly what you’ll have with this model. This is the quiet version of the 40 Series muffler that takes the Delta Flow tech to the next level. The Delta Flow 40įinally, there is the Delta Flow 40 series. It’s difficult to tell the difference between these two mufflers without hearing them both, which is why I’ve included a set of different muffler sounds to help with the purchase decision. It has a bit less drone, a bit less of a rasp and more of a smooth sound. The Super 40 is very similar to the standard 40 Series muffler but with some of the harshness removed. Some buyers believe that the Super 44 is quieter, but it’s actually just less resonant or has less of a drone, which gives it a cleaner sound. The Super 44 is a deeper and slightly louder muffler than the 40 Series, and it includes the Delta Flow technology that eliminates much of the drone the 40 Series muffler experiences at higher speeds. By getting to know the differences between the different options it’s simpler to make a decision about which is the best overall. It’s important to consider how the different options vary and which of the options is best for your particular situation. There are many different mufflers that are similar in design to the 40 series mufflers from Flowmaster. The unit is split up into two different internal chambers that don’t reduce sound resonance as much as other mufflers from Flowmaster like the 40 Series Delta Flow, or the Super 44. Each of the 40 series mufflers is covered by a Limited Lifetime warranty, much like the other leading Flowmaster mufflers. It can be crafted from aluminized steel or 409S stainless steel and is MIG welded for strength and reliability. The Flowmaster 40 series is about 13 inches in length with a 4-inch tall case. The drone is due to the fact that the muffler doesn’t come equipped with the Delta Flow technology that new mufflers are being designed with. The product puts off a raspy and aggressive note but also has a drone sound that stands out compared to other mufflers. The Flowmaster 40 series mufflers are one of the original designs of Flowmaster products and they carry with them the signature tone that so many Flowmaster fans are used to and in favor of.