01350banshee

Gonna get one soon, what do you guy's thinK?

Car_nut57

The 4040L is a little quieter and yields the same kind of performance as the 4040, so the 4040L seems to be the more popular choice.

ty diesel

why do you like these?????? I never heard such an UGLY sound as these aeroturbines they sound like a beretta v6 with a straight thickwall costruction pole on it. even cherrybombs sound better!!!

ty diesel

Oh...there is one plus, there shiny and look good. could fit in an interior

MonkeyLips

It is true...opinions are like holes, everyone has more than one.

ty diesel

anybody tried a big flowmaster on a diesel? wonder how that sounds..
probably too quiet....

Sailpipes

I wouldn't. I'm no engineer on muffler design, but I would rather use something to let the exhaust right through. Not something with just as many baffles as the stock exhaust.

As far as the Aeroturbine goes, I haven't heard a comparison of the two, but I think I would be happier with the 4040L. On long trips I find noisy exhaust to become a nuisance quickly.

cajun4x4

I just recently had the 4040 installed right behind the cat and find it to be tolerable in the cabin. I have yet to pull with it, but I think with the added breathing ability of the exhaust now that when at cruising speed the sound cannot be that much louder than stock. So far I am very satisfied.

djbikeman

I've had the 4040L for about a month. It is mounted right behind the cat. At my normal highway cruising speeds, I can't even tell it's there (72-75mph). When I am on the go pedal, I think it has a nice deep tone to it.


As far as it sounding like a Beretta... ...PLEASE!!!

01350banshee

Thanks to those who gave a response to my survey. I was looking for a comparison of the two, but I was not able to come up with anything. To those who gave negative replys, give me a better exhaust and why you think this.