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post #1 of 13 Old 05-09-2010, 04:07 PM Thread Starter
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cheap straight pipe

whats the best way to make a straight pipe for the stock exhaust that can be taken off easy and put the muffler back on. is there like a home depot way doesnt need to look real good its under my truck no one looks there
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post #2 of 13 Old 05-09-2010, 07:08 PM
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go to napa and get pipe to fit, you will have to gap weld it though because there is not exact fit.

2002 F-250 POWERSTROKE 4X4

BANKS 4" Turbo-Back w/ Power Elbow
Converted from 3/4 to 1TON
Napa 6637 DIY Intake
6.0 Trans. Cooler
Dipricol Gauges
Warn Hubs
TW 6 Pos.

And Some Other Boring Stuff

THANK GOD FOR YOUR BLESSINGS EVERYDAY
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post #3 of 13 Old 05-10-2010, 11:55 AM Thread Starter
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they have 4'' pipe so just weld up the 1/2'' of space
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post #4 of 13 Old 05-10-2010, 02:55 PM
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Dont GAP WELD it. Find a shop that sells exhaust for semi trucks. They normally have fittings to go OD or ID over what your exhaust size is. NAPA probably has those items. Fit it up then weld it or if you dont want it permenant then get the band clamps to fit your size. NAPA can get those also.
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post #5 of 13 Old 05-10-2010, 06:00 PM
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whats wrong with gap welding?

2002 F-250 POWERSTROKE 4X4

BANKS 4" Turbo-Back w/ Power Elbow
Converted from 3/4 to 1TON
Napa 6637 DIY Intake
6.0 Trans. Cooler
Dipricol Gauges
Warn Hubs
TW 6 Pos.

And Some Other Boring Stuff

THANK GOD FOR YOUR BLESSINGS EVERYDAY
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post #6 of 13 Old 05-10-2010, 06:08 PM
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i made shims when i had stock exhaust with 4 inch tip, not a big deal to do if you have enough pipe

03 F-350 Lariat 7.3 TW Chip, Diamond Eye 4", DIY Intake, CFM Plus, zoodad, unhooked waste gate, D.I. x-over, Auto Meter Ultra Lites, Dash Pod
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post #7 of 13 Old 05-10-2010, 06:10 PM
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definitely don't weld it in if you need to get it in and out. Cut the muffler pipes about 3 inches away from the muffler on both ends so you have stubs to wrap the band clamps around when you put it back in. Get your straight pipe from napa that is the same OD as your existing pipe, you don't want/need the flared pipe, just straight up straight pipe, And 2 band clamps for that OD. Cut the pipe (same length as the 3" stub + muffler + 3" stub) to the length needed and use the band clamps to put it all together. The band clamps will allow you to easily take it back apart and put the muffler back in anytime you need it. Other option: ruin the muffler and cut the stubs out, put the straight pipe right thru the muffler and install that and WELD it in so the shop can't pull it out to look inside, it looks legit and that's basically all you want.
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post #8 of 13 Old 05-11-2010, 06:00 AM
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I agree with nydiver. I would use the correct OD pipe to slide over the existing pipe just for support. That exhaust has gravity pulling on it, weight of itself, plus the bouncing of the system while driving. I think sliding over the existing pipe several inches then using the band clamps would be the better fix. I would go OD dont go ID because you would be making your exhaust smaller if you went ID. You wouldnt have to use the muffler at all if you did it this way.
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post #9 of 13 Old 05-11-2010, 01:46 PM Thread Starter
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thanks but im doing 3.5'' to 4'' adapter, 4'' to front of rear tire then 90* bend right in front of tire with a 5'' chrome tip all under a 100bucks too
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post #10 of 13 Old 05-11-2010, 03:37 PM Thread Starter
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any one run that set up before the tire i want to see a pic my buddy has it on his 95 f350 it looks and sounds sick
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