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Old 07-15-2010, 03:13 PM   #1
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need help quick on muffler inlet/outlet

Hi all, need some help. I am going to pull the trigger on a Borla ProXS muffler. The guy at Borla is going to give me free shipping if I grab the muffler today!

If I get the stock muff cut off and add the Borla, what should my inlets and outlets be?? The muff is going to have 2.5 ins and outs. I was thinking to get center ins and outs.

Does anyone have some experience on this?? It wont be a cat-back system. Just going to add the muff to the pipe where the original muffler was.

Appreciate all the help!!
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Old 07-15-2010, 03:31 PM   #2
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Re: need help quick on muffler inlet/outlet

I'm only about 75% sure but I believe its center in and offset out.....2.5" at both ends...just go stick your head under your truck?
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Old 07-15-2010, 03:37 PM   #3
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Re: need help quick on muffler inlet/outlet

The problem is that I am at work and my kid has the truck and I would like to get that muffler ordered and surprise him!!
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Old 07-15-2010, 03:41 PM   #4
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Re: need help quick on muffler inlet/outlet

Quote:
Originally Posted by socal View Post
Hi all, need some help. I am going to pull the trigger on a Borla ProXS muffler. The guy at Borla is going to give me free shipping if I grab the muffler today!

If I get the stock muff cut off and add the Borla, what should my inlets and outlets be?? The muff is going to have 2.5 ins and outs. I was thinking to get center ins and outs.

Does anyone have some experience on this?? It wont be a cat-back system. Just going to add the muff to the pipe where the original muffler was.

Appreciate all the help!!
2.5" in/out center/offset,
borla part #40358



Here's the stock muffler..


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Last edited by rshadd; 07-15-2010 at 04:12 PM.
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Old 07-15-2010, 03:50 PM   #5
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Re: need help quick on muffler inlet/outlet

And the part number from Borla...too cool!!! Thanks a ton...got to get ordering!!
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Old 07-15-2010, 04:05 PM   #6
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Re: need help quick on muffler inlet/outlet

Summit Racing had the best deal when I was shopping for mine. ($99)
Search Results for 40358 - SummitRacing.com
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Old 07-15-2010, 09:04 PM   #7
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Re: need help quick on muffler inlet/outlet

Ending up buying -3-!! I am going to put a couple of my Pops 52 chevy truck!! He has some 50 series Flowmasters that just dont sound that good. I am sure he will like his new Borlas!! Thanks for all your help rshadd and of course everyone else!
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Old 07-16-2010, 09:37 AM   #8
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Re: need help quick on muffler inlet/outlet

i got mine for 73 bucks.
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Old 07-16-2010, 07:50 PM   #9
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Re: need help quick on muffler inlet/outlet

darn good price!!
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