5'' exhaust on a OBS - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 9 (permalink) Old 08-13-2007, 05:03 PM Thread Starter
 
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5'' exhaust on a OBS

like it says who put a 5'' straight pipe on their OBS truck. did you have a local shop do it or buy a kit from somewhere. Also how much did it set you back. any help would be good.
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post #2 of 9 (permalink) Old 08-13-2007, 05:12 PM
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I've never seen a 5" straight pipe on an OBS but I had a 4" straight pipe on mine before I put my stacks on. I just had a local muffler shop do it.

Tim

'96 f350 cc dually, 5 speed w/ short throw shifter, stage 1 injectors, '03 sd intercooler, d66 turbo, DP Tuner F5 chip (stock, high idle, tow, econo, extreme) modified IDM, CCV mod, gutted EBPV

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post #3 of 9 (permalink) Old 08-13-2007, 07:46 PM
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I put mine in from a kit from Tymar. Can't remember how much it cost, but it was pretty reasonable. Mine uses a 5" free-flowing muffler. It took a little bit of fabrication, since my downpipe exits at 4" dia. Dale at Tymar went ahead and welded on a 4" to 5" adapter for me on the downpipe. It's pretty snug where it passes over the axle and past the spare, but it does fit.

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post #4 of 9 (permalink) Old 08-14-2007, 01:16 AM Thread Starter
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anyone else seen one before?
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post #5 of 9 (permalink) Old 08-14-2007, 03:01 AM
 
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RPM Outlet sells a 5" setup. I dont know anything about it, just happened to see it on the website.
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post #6 of 9 (permalink) Old 08-14-2007, 03:30 AM
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Quote:
Originally Posted by 7.3FordPower
like it says who put a 5'' straight pipe on their OBS truck. did you have a local shop do it or buy a kit from somewhere. Also how much did it set you back. any help would be good.

i went to a Keller Truck Parts today to buy pieces to make my 5" dual exhaust, and that is the way to go. much cheaper then a kit, just as easy to install if you have a little mechanical skills and common sense.

http://www.kellertruck.com/

2000 F250 7.3L CC Lariat 4X4 SB;

Performance:TS Performance Tuner///K&N Intake///Custom 5" Straight Pipe///6.0 Intercooler///B&M Trans Cooler///Foil Delete///Zoodad///CCV.
Interior: Autometer Gauges: Pyro, Trans, and Boost///Alpine In-Dash DVD Player///Audiobahn Sound System///Cobra 29 CB.
Exterior: Pro Comp 4" Lift///36" Super Swampers///16" wheels///Dual Hadley Peterbilt Horns///Viair 380c Compressor///Two 3 gallon air tanks///20% Tint///Warn Standard Hubs.

-Marshall-
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post #7 of 9 (permalink) Old 08-14-2007, 03:35 AM
 
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Yeah, pre-rear wheel is sorta easy, its just gettin up over the axle thats the trouble. Just go somewhere they sell 4" and up exhaust (truck shop) and you can find pretty much all the pieces you need.
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post #8 of 9 (permalink) Old 08-14-2007, 06:32 AM
 
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exhaust over the axel but i also have a 4inch lift too so i have no bends over the axel. but reall easy just get u 2-45deg pipe and 2-90deg pipe and clamp them together real easy i have done this to a d-max cummins and a ford psd and works great
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post #9 of 9 (permalink) Old 08-15-2007, 12:08 AM Thread Starter
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Alright I will look into these things thanks for the help
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