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Old 09-29-2011, 10:31 PM   #1 (permalink)
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Strait pipe or not?

im considering straight piping my cummins. is there any performance reasons to? or is it complety for sound? should i straight pipe it or not?
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Old 09-29-2011, 10:35 PM   #2 (permalink)
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Less restriction, better sound lower temps...

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Old 09-29-2011, 11:49 PM   #3 (permalink)
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Quote:
Originally Posted by awg115 View Post
im considering straight piping my cummins. is there any performance reasons to? or is it complety for sound? should i straight pipe it or not?
A better question is... why not? Just do it and enjoy your toy
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Old 09-29-2011, 11:52 PM   #4 (permalink)
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DO IT!!!! Sounds great and performs great... and its cheap!
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Old 09-30-2011, 10:25 PM   #5 (permalink)
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I went the delete-pipe route and decided to do one at a time.....

going off of popular opinion on here I killed the muffler first ( cat is still hiding out under there)...... and it sounds awesome now.

I did it at the same time as my AFE intake so it's hard to tell what gain came from where....

mileage stayed the same, I can hear the turbo now, there is barely any drone in the cab, but with the windows down it sounds amazing.... the bottom end feels about the same, but from 2000rpm+ it really comes alive now.

I've thought about pulling the cat out and replacing with a flow through muffler but I'm liking the sound I have now, and I idle it in a garage in the winter and don't want all of my toys covered in soot....
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Old 09-30-2011, 11:06 PM   #6 (permalink)
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Done it both ways.
1) Straight without any muffler, drone was out of control when towing.
Granted sounds good otherwise (most of the time).
2) AND 4" ANSA from Genos Garage Torbo back WITH the ANSA straight through "muffler".
No drone same performance as NO muffler and it's only about 325.00 in aluminized!
Option 2 is my choice.
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Old 09-30-2011, 11:22 PM   #7 (permalink)
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5 inch flo pro from RSD i believe i got it for less than 300 aluminized strait u can always add a muffler sounds good... only bad drone is like at 1500 rpm otherwise not bad at all
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Old 10-01-2011, 01:55 PM   #8 (permalink)
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Straight pipe may be to loud for your liking. the noise and drone bother some but others love it. My buddy has an FTE resonater in place of his muffler and it sounds great with no drone and is loud but not obnoxious.
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Old 10-01-2011, 02:31 PM   #9 (permalink)
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In the end, its your truck and we should not be making decisions for you. Opinions are great, but everyone has them, and everyone likes to bring them out in a public forum.

Fact of the matter is, drone can be very annoying. My truck was straight piped when I first bought it, I had to drive it home 327 miles from where I picked it up. After that trip, first thing I did when I got home was to order an Aero 4040XL to swap in place of the delete pipe. It still droned, but NOTHING like with the straight pipe.
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Old 10-02-2011, 12:37 AM   #10 (permalink)
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Just do it? I got my 3500 qclb 4x4 dually last week, and can't wait to put that straight pipe on there. That's coming from an exhaust junkie, so take it as you may. Let your beast be heard, right?
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Old 10-02-2011, 01:54 PM   #11 (permalink)
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I would try the straight pipe first. It will sound amazing, I had mine straight for about a year, then I put a 6.7L muffler on. Im thinking of going straight again now. Just do some research for an exhaust that you can get a muffler/delete on and off with out any hassles so you can plan with it untill you like it.
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Old 10-02-2011, 09:42 PM   #12 (permalink)
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Health insurance or not........
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