just curious when you run stacks do you still run a muffler or no because I ran straight pipes for a few days...well just my down pipe and it was really loud but it kind of decreased my preformance. just wonderin what worked for others thanks alot:toilet:
They make some drop in muffler units for stacks. They actually drop down into the stack itself. They are supposed to work really well. Other than that, I have not heard of any sort of muffler, besides, I dont think there would be room.
I run a downpipe to 4 inch to 5 inch stack, love the sound. If you want mbrp has an 18" muffler that would fit between the downpipe and elbow to the stack on my reg cab. Good luck Don't quote me on the exact length of the muffler, it is 2" give or take.
You truck ran like crap cuz you were just running the downpipe and it won't create enough backpressure. There are a couple guys here that run stacks and put a muffler on and noticed an increase in performance. Just a thought.
He has a 7.3 so he doesnt need backpressure. When I had my 97 it was only run with a downpipe for like a year and never noticed any decrease in performance. Is the decrease felt by seat of the pants or a real dyno?
well i wouldnt call what happened a loss of preformance but more of a loss in top end preformance and a noticable decrease in milage and i like both of those things alot
At the best all I've ever heard is that a muffler will give a little more low end? So sounds like you're SOL cuz sounds like youre happy with the low end. Good luck with it. Who knows throw a muffler on there and see if it helps?? Do you have any pre turbo exhaust leaks??
well I went with a side pipe reverse flowed the faactory muffler and got a nice deep noise and just a single 45 degrees bend coming out the side makes the wheel a lil dirty but heck its a diesel
i know you were just joking but honestly the only time that you won't worry about losing backpressure is in 450+hp motors... aka pulling trucks with 2 foot stacks through the hood...
what serieis flowmaster are you running pipelayer? I was thinking bout getting a single in and dual out for my truck and having an exhaust bend me tail pipes for it but im not sure yet
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