7.3 downpipe - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 9 (permalink) Old 06-23-2009, 04:13 AM Thread Starter
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7.3 downpipe

Going to be buying my friend a down pipe for his 97 7.3 power stroke. Which size should I go with? I am only abke to find 3 inch diameter pipes and i heard that 4 inch would fit. Someone steer me in the right direction as which one to buy and where?

98 4x4 12V, 47RE, Pakbrake Ex. Brake, TQ Lock up, BHAF, 4in to single 5in miter , Boost and EGT gauge, 370 Haisley Injectors, #6 Plate slid, Star wheel turned, Silencer Ring MIA, CB, 305 A/T tires Summer 2 Do : 4GSK and 80 lb Valve Springs
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post #2 of 9 (permalink) Old 06-23-2009, 04:34 AM
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3" barely fits--just the thought of putting a 4" DP in an OBS makes me laugh.

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post #3 of 9 (permalink) Old 06-23-2009, 04:45 AM Thread Starter
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Quote:
Originally Posted by jvencius View Post
3" barely fits--just the thought of putting a 4" DP in an OBS makes me laugh.
I hear yea. I put the cat back system on for him and say the down pipe and was surprised at how smooshed it is. Heard the rumor about 4 inch and i think it was down in diesel power mag last year on their 96 quad cab long bed project. probably just going to go with the 3 inch from ebay for $100

98 4x4 12V, 47RE, Pakbrake Ex. Brake, TQ Lock up, BHAF, 4in to single 5in miter , Boost and EGT gauge, 370 Haisley Injectors, #6 Plate slid, Star wheel turned, Silencer Ring MIA, CB, 305 A/T tires Summer 2 Do : 4GSK and 80 lb Valve Springs
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post #4 of 9 (permalink) Old 06-23-2009, 02:38 PM
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I'm sure a 4" could be fit... If you cut the firewall and/or added a body lift.

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post #5 of 9 (permalink) Old 06-25-2009, 03:29 AM Thread Starter
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Bump again, no one knows of a better place then ebay to get a downpipe!?!?

98 4x4 12V, 47RE, Pakbrake Ex. Brake, TQ Lock up, BHAF, 4in to single 5in miter , Boost and EGT gauge, 370 Haisley Injectors, #6 Plate slid, Star wheel turned, Silencer Ring MIA, CB, 305 A/T tires Summer 2 Do : 4GSK and 80 lb Valve Springs
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post #6 of 9 (permalink) Old 06-25-2009, 03:32 AM
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Bump again, no one knows of a better place then ebay to get a downpipe!?!?
I bougth mine form TYMAR cermic coated.
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post #7 of 9 (permalink) Old 06-25-2009, 04:01 AM Thread Starter
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Originally Posted by STROKER#1 View Post
I bougth mine form TYMAR cermic coated.
How much you pay? And where? I cant find a website. It 3 inch of 4?

98 4x4 12V, 47RE, Pakbrake Ex. Brake, TQ Lock up, BHAF, 4in to single 5in miter , Boost and EGT gauge, 370 Haisley Injectors, #6 Plate slid, Star wheel turned, Silencer Ring MIA, CB, 305 A/T tires Summer 2 Do : 4GSK and 80 lb Valve Springs
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post #8 of 9 (permalink) Old 06-25-2009, 03:56 PM
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Quote:
Originally Posted by PVXCummins View Post
How much you pay? And where? I cant find a website. It 3 inch of 4?
I paid about $180.00 a couple of years ago.
here is the web page, but is empty, so you have to call Dale by phone
http://www.tymarperformance.com/

He has 3", 3" to 3 1/2" and 3" to 3 1/2" to 4", all of them in two pieces.
I attached a pic of mine, I like it a lot and really decreases the outside temp.
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post #9 of 9 (permalink) Old 06-25-2009, 05:08 PM
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PM any of the vendors on here, they can all get you a 3" OBS down pipe.

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