what size exhaust to get? - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 7 (permalink) Old 02-10-2007, 06:29 PM Thread Starter
 
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what size exhaust to get?

I got a y2k psd 6spd and I am going to put a straight pipe on it. My dad's old psd had a 4" downpipe, 4" straight pipe and 5" tip and it sounded good. His new truck (dodge :shrug: ) has a 5" straight pipe on it. Has anyone put a 5" straight pipe on a psd? Also, would there be a power loss with a more open exhaust? A guy I know said that he was thinking about going with a 3" downpipe, 4" straight pipe to the back of the cab, then 5" rest with a 6" tip. What would be the best route to go....4" or 5"?
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post #2 of 7 (permalink) Old 02-10-2007, 06:31 PM
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4" is plenty big enough.. 4" turbo back loose the muffler or go with a aeromotive... you will be happy
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post #3 of 7 (permalink) Old 02-10-2007, 06:49 PM Thread Starter
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ok, well I'm going to have a local exhaust shop put it on and he loves diesels and is trying to talk me into having the exhaust come out in front of the rear tire, wouldn't that just get soot all over my wheel?
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post #4 of 7 (permalink) Old 02-10-2007, 06:57 PM
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yes it gets soot all over the wheel... almost impossible to keep the tire and wheel clean... and the rest of the truck behind the tire... to each his own but i dont like it...
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post #5 of 7 (permalink) Old 02-10-2007, 08:06 PM
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There is also a bunch more in cab noise when you exit in front of the rear tire.

Eric
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post #6 of 7 (permalink) Old 02-11-2007, 02:44 AM
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I ran 5" on mine before the stacks. I loved the sound. It's a much deeper tone than 4". I didn't notice a power loss either. Our motors are not as sensitive to back pressure as some of the newer engines are.

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post #7 of 7 (permalink) Old 02-11-2007, 04:50 AM Thread Starter
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is there anywhere i can hear a sound clip or see a video of a psd with 5" exhaust?
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