Quote:
Originally Posted by jmc8387
None of the above. Stock is best! Loud exhausts are not refined. They belong on a sports car, not an SUV.
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Fine to keep stock muffler sound, but Its a known fact your stock exhaust restricts too much creating heat to be held inside the engine. EPA smog laws have driven car makers to restict heat/fumes so bad over the yrs its greatly shortened engine life. Soon we'll need no heaters in cars as your arse will be hot from the exhaust/cats.
Its common sense that when the sounds restricted so bad the heats restricted too, so the best thing for engine life is to allow one to breath.
Remove/gut the cats regardless of muffler used is a better upgrade. Most of us can't do this over state laws yearly smog tests, so your next best thing is install high flowing cats and then your mufflers sound of choice.
As far as true performance/air flow any straight through glass pack flows higher cfm ratings than any turbo/chambered style and yes even better than flowmasters.
Flowmaster in the day heavily advertised they were the best performing "Turbo" muffler but most took that as the "best performing muffler"....Big difference, they do make straight thru race mufflers (pro series). Why? Because they flow better!!
Drone or sound resonating throughout the vehicle is the downside of all the highest flowing mufflers so choose wisely if you hate that inside hum on the hwy.
Now' myself I drove a 425hp 69 Dodge Superbee with 3" exhaust /glass packs daily for over a decade I can handle any drone sounds thrown my way but most like my wife cant. I like a deeper rumble bass sound, never liked the wisper sound of high restricted stock mufflers or high raspy chambered /turbos at all.
Today' I like it deep sounding but just loud enough so I dont have to turn off my engine to order in a drive through. After I pull up close and yell pretty loud though when I order so I manage...lol
Not sure if I'm getting older or lazier but I've changed because before it just didn't matter?
I LIKE THIS:
Only says "new cat" not high flow but may be? I like this turbo mufflers sound, not a duel but nice & cheap deeper sound.
https://www.youtube.com/watch?v=CrAw...A3rxWVT-5DeDLg
However' all that said, I WANT THIS...lol
https://www.youtube.com/watch?v=hPy0KPa9oFc
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