Getting flowmaster muffler installed today
Getting flowmaster muffler installed today (PICS)
Shop is going to install both the super 40 and delta 50 before welding so I can hear them both and decide.
I know most go 50 series. Any on here go 40 series? What's your opinion on it?
I know most go 50 series. Any on here go 40 series? What's your opinion on it?
Last edited by slimcubby; Aug 17, 2009 at 07:53 PM.
I have the typical 2 chamber, so i think its the super 40. Its not htat loud. I have the muffler welded into stock pipe. Its loud on cold start and while under hard gas, but other than that there isnt much drone. maybe if i had stainless and a 3" tip that would change.
I think the 44 is a little louder and a little deeper.
But I bought a 50 once and took it off a week later and replaced it with a 40 because the 50 sounded only a little better than stock.
But I bought a 50 once and took it off a week later and replaced it with a 40 because the 50 sounded only a little better than stock.
One muffler shop I called said they wouldn't do the 40 because I would lose to much backpressure. He said I wouldn't be able to tow a boat out of the water. Is this nonsence?
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If you are just installing a different muffler I don't think you should have a backpressure problem.
On my old truck I had a super 40 installed with a single in dual out setup with 2.5 inch pipe and 3 inch tips. With that I could tell that I lost some low end torque. So with my 09 I was thinking of going with a Super 44. You just cannot hear these 09s at all.
The 44 is louder than the 40 and the 40 is louder than the 50.
On my old truck I had a super 40 installed with a single in dual out setup with 2.5 inch pipe and 3 inch tips. With that I could tell that I lost some low end torque. So with my 09 I was thinking of going with a Super 44. You just cannot hear these 09s at all.

The 44 is louder than the 40 and the 40 is louder than the 50.
Last edited by jdtech65; Aug 17, 2009 at 06:00 PM.
Here are some pics of the before and after. I so far think its ok its not too loud but there is some droning on the freeway when between 2-3k RPM's. Its super quiet when coasting etc. but gets loud when you get on it. I am wondering if there is a way to reduce the drone on the freeway.
Before pics:


After pics:

Before pics:


After pics:




