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Old Nov 29, 2009 | 02:32 PM
  #1  
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From: northwestern Ontario
question

what size exaust comes on the truck 3.0 3.5 ?

I bought a cherry bomb vortex Part # 88105 but it is olny 3 inch in and out will this hurt my truck

i have no cat or muff and passe e test and dose not smoke but it dose make a lot of noise though

The exaust i have now is 3 or 3.5 inch to abought were the pasnger seat would be and switch up to 4 inch flex pipe and makes a bend up to the chrome stack along the pass side of cab and up 7 feet



The main reason for doing this is we have noise laws here in Ontario and I don't want a run in with MTO. I just want to bring the rumble down a bit. "i think it ecos in the pipe lots "

i would like to install wear it go up to 4inch flex pip "pics are coming"
Any thoughts from anybody?

i also have the a 3 in to 4 in addaptor so it gose back to 4 in after the muffler
 

Last edited by ampslw; Nov 29, 2009 at 03:18 PM. Reason: more info
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Old Nov 29, 2009 | 03:48 PM
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The factory exhaust is a 3.0" down pipe to a 3.5" for the rest. So by the sounds of your thread you need a 3" inlet and a 4" outlet On your muffler or cherry bomb, you could also get an adapter for 3"-4" to go from you cherry bomb to your flex pipe. Hopfully i have that rite.
 
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Old Nov 29, 2009 | 04:02 PM
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pic of what it looks like now






Is there good gages that i can get throught NAPA ?

i know that i need one for EGT's but what elase do i need ? from what piller gage hoders that i have seen hold 2 or more ?
can't order on line
need to get localy
I also have a piston ring here in town
 
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Old Nov 29, 2009 | 05:34 PM
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Don't know about gauges at Napa. What about jc whitney? Also don't know if I would want to reduce the size of stock exhaust, could create back pressure and higher egt,s
 
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Old Nov 29, 2009 | 08:42 PM
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I though that could be a problum, but i can allmost see throught it so i wonder if back presher would even be a item to think abought
 
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Old Nov 29, 2009 | 09:43 PM
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I agree I don't think that I would go any smaller.

I don't know how to put a link up but if you want guages talk to Clay at RiffRaff performance. He has good prices and has good customer service and a vendor on hear.
 
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Old Nov 29, 2009 | 09:47 PM
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Jeeeezuss christ! did you say a 7 foot stack? bahahaha
 
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Old Nov 29, 2009 | 09:55 PM
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oups bad wording

stack was a bad choise of words what i ment was 7 foot cromme 4 inch strate pipe to the top of the service box

also what tire size do guys run on your dullys ? i was told by the person who i bought the truck from he got better fuel milage with 245 70 19.5 insted of 225 70 19.5 witch were on the truck when i got it
 
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Old Nov 29, 2009 | 11:35 PM
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Man, this thread is all over the place.
 
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Old Dec 3, 2009 | 11:20 AM
  #10  
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do you all agree ?

Is this not a good idea for cherry bomb vortex ( 578 cfms ) 3" in and out

Thanks to all for thoughts.


Sorry for the thead beening all over the place
 
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Old Dec 3, 2009 | 01:22 PM
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Isnt the a muffler that everyone refers to as the big truck muffler? I froget who makes it but that might be the way to go
 
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Old Dec 3, 2009 | 01:28 PM
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My head hurts from reading this...

Muffler... Make it fit... go to napa and buy some fittings and your done...

gauges... You cant order them on line but you can post on a on line forum???

Napa carrys Autometer sometimes, if not they can order anything you want.

Tire size... Run what ever size you can afford and fits.

Ugh.
 
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Old Dec 3, 2009 | 07:18 PM
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Huh??????????

 
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Old Dec 3, 2009 | 10:15 PM
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Geezus guys give the guy a break. Maybe he doesn't have a credit card, which would mean he can't order stuff online.

ampslw you'll get better responses if you try to stick to a single question in each thread..and title threads with the information you are looking for. Also Clay at Riffraff is a wealth of information on a lot of things http://www.riffraffdiesel.com/mm5/merchant.mvc?
 
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Old Dec 3, 2009 | 10:45 PM
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Sorry

Sorry for all the questions in one thread, I got a little excited because I finally found a place where I could get REAL anwers from other owners and not from someone who doesn't know hands-on about the 7.3 engine. When I first got the truck so many people warned me about the 7.3 motor, it made me kind of nervous and after reading MANY hours of different threads I now have a greater knowledge about my 7.3

Just wanted to say thanks.
 
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