Straight pipe anyone?
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Junior User
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From: monroe michigan
Straight pipe anyone?
I'm pretty lazy, so I didn't do a search. Has anyone have anything to say about running a straight pipe on an '01 Stroker? Fuel mileage, turbo spoolup, noise? I've got 102K on mine, and the stock exhaust pipes won't wear out. With the cost of diesel higher than premium gas, I'd like to do something. I already have a SuperChips programmer installed for about the last 60K or so. Also I cut 3 good sized holes in the air intake area in front of the airbox. 
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From: 21791
yes, the straight pipe will be MUCH less restrictive. that stocker is a real killer. your mileage may actually go up, because of the less restrictive exhaust flow. plus, you will get more turbo whistle and more flutter from the exhaust. i love it!
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From: monroe michigan
Originally Posted by strokin_it7.3
yes, the straight pipe will be MUCH less restrictive. that stocker is a real killer. your mileage may actually go up, because of the less restrictive exhaust flow. plus, you will get more turbo whistle and more flutter from the exhaust. i love it!
Last edited by john day hardy; Oct 16, 2005 at 08:57 AM.
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From: 21791
yes, i have that filter and LOVE it. check the gallery "my trucks"
3.5'' (stock size) is pretty rare to get a 3' section in. check the sponsors at the top of the page, and maybe you can find a muffler delete pipe. usually they sell 4'' muffler delete pipes for their 4'' systems. if you have $400 laying around, i would recommend getting a 4'' exhaust. it lowers your EGT's significantly- better for towing and longevity. i got mine from www.blackclouddiesel.com and it was $444 for 4'' turbo back aluminized steel system, with shipping and a 5'' T-304 tip included. great deal.
3.5'' (stock size) is pretty rare to get a 3' section in. check the sponsors at the top of the page, and maybe you can find a muffler delete pipe. usually they sell 4'' muffler delete pipes for their 4'' systems. if you have $400 laying around, i would recommend getting a 4'' exhaust. it lowers your EGT's significantly- better for towing and longevity. i got mine from www.blackclouddiesel.com and it was $444 for 4'' turbo back aluminized steel system, with shipping and a 5'' T-304 tip included. great deal.
More Turbo
Joined: Aug 2004
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From: Georgia
Try this website. The stack extensions can be used as a straight pipe. They have exhaust adapters if you want to use 4" pipe with your stock 3.5" exhaust. My son just put the 4" aluminized stack extension using two 3.5" to 4" adapters on my wife's 2001 Excursion PSD and it sounds good Btw, he now drives the Excursion and he gave his 1997 F150 to my wife to drive. This website also has an intake system similar to the Tymar & 6637.
Striaght pipe
http://store.airflo.com/exhaust-stacks.html
Intake system
http://store.airflo.com/psi-03.html
Striaght pipe
http://store.airflo.com/exhaust-stacks.html
Intake system
http://store.airflo.com/psi-03.html
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From: 21791
kabcpapc, i looked at that link, lots of neat stuff, build your own stack system.
i looked at regular piping, and i found some 3.5'' stuff. its $6.60 for a foot..
http://store.airflo.com/exhaust-tubing.html last one on that page.
i looked at regular piping, and i found some 3.5'' stuff. its $6.60 for a foot..
http://store.airflo.com/exhaust-tubing.html last one on that page.
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From: monroe michigan
Guys; You've been great help. Think I'll look into a 4" system turbo back. I like the FullBoar package for $350, with pyrometer plug and downpipe. What think you all? Also I'm stopping tommorow to get a Wix 46637 air filter. 
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From: Rural Central Ohio
Originally Posted by john day hardy
I like the FullBoar package for $350, with pyrometer plug and downpipe.
IMO, I would not use the pyrometer bung in the downpipe. A lot of guys will tell you to tap the pyrometer probe pre-turbo because it is more accurate and will give temp readings faster than post-turbo.
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From: 21791
Originally Posted by edub32
IMO, I would not use the pyrometer bung in the downpipe. A lot of guys will tell you to tap the pyrometer probe pre-turbo because it is more accurate and will give temp readings faster than post-turbo.
i would recommend MBRP exhaust. i have their system and love it. here is a sound clip of what i have, although it is not my truck.
http://www.dieselperformanceparts.co...es%20Video.wmv
i have never heard of full boar, but i wouldnt get their system mainly because the hole in the downpipe if the pyrometer hole doesnt have a plug with it. the MBRP system i got was only $354. then add shipping- $40, and a tip (not needed, for show) for $50. and you get $444. i got mine from garrett at blackclouddiesel.com, a great guy to buy from.
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From: monroe michigan
Originally Posted by edub32
Do you have a website for this "FullBoar Package"..?
IMO, I would not use the pyrometer bung in the downpipe. A lot of guys will tell you to tap the pyrometer probe pre-turbo because it is more accurate and will give temp readings faster than post-turbo.
IMO, I would not use the pyrometer bung in the downpipe. A lot of guys will tell you to tap the pyrometer probe pre-turbo because it is more accurate and will give temp readings faster than post-turbo.
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3.5 exhaust pipe hard to find
Originally Posted by kabcpapc
. My son just put the 4" aluminized stack extension using two 3.5" to 4" adapters on my wife's 2001 Excursion PSD and it sounds good
i been thinking about doing something like this to my 2000 psd just undo the clamp that is just behind the cab and remove the tail pipe and muffler. Put in a 2ft stack with a turn out (turn down to highway) just before the axle (just in front if the rear tire)
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From: Troutdale, Oregon
Do you have to replace the downpipe to add 4" from the down pipe back and if so would it not work well.
The reason I asked is I got a quote from a local muffler shop tell me they would install a 4" exhaust on my 97 f-250, however they said they do not do downpipes on 97's ?
The reason I asked is I got a quote from a local muffler shop tell me they would install a 4" exhaust on my 97 f-250, however they said they do not do downpipes on 97's ?
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From: SHELTON, WA
Originally Posted by rclark1
Do you have to replace the downpipe to add 4" from the down pipe back and if so would it not work well.
The reason I asked is I got a quote from a local muffler shop tell me they would install a 4" exhaust on my 97 f-250, however they said they do not do downpipes on 97's ?
The reason I asked is I got a quote from a local muffler shop tell me they would install a 4" exhaust on my 97 f-250, however they said they do not do downpipes on 97's ?
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Joined: Aug 2004
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From: SHELTON, WA
Originally Posted by rclark1
It is stock, Not sure what size the stock DP is? Can you just use a reducer and run 4" back, And is this a good idea?
Thank You for your help
Thank You for your help
the stock dp has a flange on it and will be very hard to clamp. you will probably need to cut the studs off. and then weld the reducer on and then run your 4" out the back. and yes it will be fine to do it like this.
if your gonna do all that though i would invest in a new dp. then buy a reducer and some pipe and you will be all set. probably could have a sweet exhaust/ dp for less than 180 bucks. provided you buy the pipe from airflo or similar place and dp for around 100 bucks or so.