Straight pipe? - Diesel Truck Forum -
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post #1 of 6 (permalink) Old 02-08-2011, 07:54 AM Thread Starter
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Straight pipe?

Someone told me to remove the muffler and run a straight pipe from there to the rear for better sound and flow.

Anyone do this, and whats your thoughts on it?
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post #2 of 6 (permalink) Old 02-08-2011, 03:32 PM
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If your running a non turbo idi it will be pretty loud. Ive had freinds that ran true dual straight pipes on non turbo idis and you could here them coming from forever away. I had a straight on my factory turbo though and it wasnt loud.

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post #3 of 6 (permalink) Old 02-08-2011, 06:18 PM Thread Starter
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Well I dont wanna be too annoying to the public, just want a throatier free flowing sound
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post #4 of 6 (permalink) Old 02-10-2011, 01:35 AM
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I recently ran 3" pipe off the Y, a performance muffler and turned out in front of the tire. total cost with labor less than 300. sounds great without waking the neighbors or scaring the horses.
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post #5 of 6 (permalink) Old 02-15-2011, 11:44 PM
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I have a 89 model 7.3l idi and i put a flowmaster and 4in exhaust from the y-pipe all the way out behind the back tire,with a 5in stainless tip from flowmaster,sounds really nice,throaty sound,but not super loud,gets alot of compliments on the sound.I purchased everything from jegs and summit,did a little shopping and was able to do it for around 300.00. If you have a mig welder or a friend with one,and a afternoon to spare,i thought it was worth the effort,good luck on whatever you try,i did do straight pipe to,didnt sound as good as this.
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post #6 of 6 (permalink) Old 02-17-2011, 12:25 AM
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I went with 3 1/2 " section of straight pipe. A walker 21470 muffler and the tail pipe from my 01 SD. Couple of clamps and adapters. Makes a great budget priced exhaust system. It's not loud, sounds pretty good.

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