Straightpipe OBS - Ford Powerstroke Diesel Forum
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post #1 of 16 Old 12-16-2009, 05:50 PM Thread Starter
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Straightpipe OBS

Alright, so I used to own a 95 that was straightpiped by a shop back in my old home town after I put a 3" DP on it myself. I've sinced sold the truck to pay for other things. After getting back on my feet I've purchased a 96 OBS and want to do the same thing. Called a shop locally and they told me $900

I found out they were just going to buy a kit and install it for me . I can install kits myself, but I can't find any that don't come w/ a muffler. Is my only way to straight pipe this thing now to get a kit and find an extra length of 4" to plop in place of the muffler? The local shop told me that no one around has the ability to mandrel bend a 4" pipe and that's why they'd just be buying a kit and installing it for me. Bummer, 'cause having someone else do it the last time, I got everything from DP back for $190 installed and there were no seams (except a solid weld at the DP).
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post #2 of 16 Old 12-16-2009, 05:53 PM
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Cant mandrel bend? This place is bull****ting you. The muffler is on a straight run of the exhaust. Just go to a local muffler shop and buy a piece of pipe the same diameter and weld it in. Even if you cant weld have the muffler shop or somebody small do it. Cutting the muffler out and welding in the new piece wont take longer than a half hour.

1997 CC SB. Stage 1s, 17*hpop, S&B CAI. 4" straight pipe, TW tunes, zf5 swap
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post #3 of 16 Old 12-16-2009, 06:10 PM Thread Starter
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Thanks for the reply...

I'm fully aware they don't need to bend anything for the muffler, but I need the whole get-up (It's all stock right now). I'll install a DP for them, but they will need to bend over the rear axle. Does that make sense?
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post #4 of 16 Old 12-16-2009, 06:16 PM
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Go to the websites and find an exhuast that you like. You should be able to find on for under 350. If you can install a down pipe im sure you can put the rest of the exhuast on your self. If your truck is smaller than a crew cab you should have enough exhuat to just not put the muffler in at all. If you dont most of the vendors on here have muffler delete for sale also.
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post #5 of 16 Old 12-16-2009, 06:19 PM
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I bought 2 pieces of flexpipe and some clamps. 60 dollar strait pipe.

97 250, 400/300's, ts, A1000,gen3, s475, Intercooled, h11 headstuds, built tranny.12.031@112.15 on fuel
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post #6 of 16 Old 12-16-2009, 06:28 PM
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FBD Budget Exhaust 4" Straight Pipe

Picture shows a muffler but thats just because they used the same pic for both straight piped and muffler.

1997 CC SB. Stage 1s, 17*hpop, S&B CAI. 4" straight pipe, TW tunes, zf5 swap
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post #7 of 16 Old 12-16-2009, 06:51 PM
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i did this for my NBS, 4' section of pipe costed $20

http://img43.imageshack.us/img43/5682/pipe002.jpg

Late 99 ECLB XLT 4x4 F250 STOLEN..now recovered
-DP tuner
-DIY intake
-08 Mirrors
-Gauges
-05 Grille
-Smoked cab lights
-35s w/ no lift
-4" straight pipe

1997 CCSB XLT 2wd F250
-STOCK!!!!!!!!!!
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post #8 of 16 Old 12-16-2009, 06:57 PM
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the downpipe is by far the hardest part of the exhaust system to do, buy a kit for 300 bucks, go on ebay and find a 4 inch diameter pipe for dirt cheap (or 5 inch if your going that route) and 2 expansion clamps and call it a day, 900 bucks is absolutely ridiculous.


2016 F450 6.7L XLT 4x4Dump, bone stock
1994 F250 7.3L XLT 4x4 ZF5 , Centurion, 4" Lift, 6637, Gulf Coast Bypass Filter, Big fuel tanks, dana 60 swap, No longer dually
1997 F350 7.3L XLT 4x4Dump, E4OD, 4 in exhaust, TS 6 position, 3/8 Trans line+external filter
2013 Scag Turf Tiger 61" 1.1L Caterpillar Diesel
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post #9 of 16 Old 12-16-2009, 08:29 PM Thread Starter
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I also found a Diamond Eye system (includes the DP) for $280. I don't know that I feel comfortable exiting Diesel exhaust in front of the rear tire...maybe it's just me, but I'll sit on it for a bit and maybe I'll end up doing that. Then I could just get a 45* and the straight lengths I'll need and build the whole thing (purchase DP obviously).
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post #10 of 16 Old 12-16-2009, 09:01 PM
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Quote:
Then I could just get a 45* and the straight lengths I'll need and build the whole thing
wish I got a 45*, purchased a 90* for some reason. goin in shortly...

'96 ext cab 4x4
ZF5
DIY intake
3" dp
DIY 4" exhaust
Gauges
TW

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