Which Way To Go??? - Ford Powerstroke Diesel Forum
6.4L Performance Parts Discussion What has or has not worked for you?

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post #1 of 8 Old 09-30-2012, 02:07 PM Thread Starter
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Which Way To Go???

I have a 2008 F250 that I want to remove the DPF and CAT and pick up some power. I know I want an H&S Mini but not sure if I should go with a complete exhaust or just the deleat pipe. What are the performance gains with a 4" exhaust and is it much louder than if I just did the pipe? I want to do this once and be done. I also if a little more money will get me more performance then I would spend the extra for turbo back. I guess I want the best bang for my buck and Don't want the truck to sound like a 1987 Dodge. I know this stuff has been beat to death and I have been reading for months I would be thankful for any help.
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post #2 of 8 Old 09-30-2012, 02:45 PM
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with a 4inch exhaust and the cat and DPF gone it will be louder.. quite a bit louder.. but if you have a muffler that might not be the case.. it won't be to deafening but most of the kits aren't made for quite.. i'd just do the delete pipes but bang for your buck power a 4in is your only choice from turbo back
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post #3 of 8 Old 09-30-2012, 02:52 PM
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I have a straight pipe which deletes the dpf/cat, S+B intake, and min max. It's definitely louder than stock but doesn't sound overwhelming inside the cab. I think eventually I'd like to get a turbo back 5" exhaust but I don't want an overwhelming sound inside the cab when cruising on the highway. I like the "hairdryer" sound I get too. Sounds like a jet engine when you hear it from outside the truck.

2008 F250 Harley Davidson 4x4, Upgraded LED lighting, JL Audio 13.5" Stealthbox, JL Audio C3 door speakers, JL Audio 500.1 for the stealthbox, JL Audio 400.4 for the doors, Viper 5704 alarm/SmartStart and GPS tracker, JimmiJammer door plates, JimmiJammer gateguard, Delete front lock/rear handle swap, DPF delete, MiniMaxx, 2.5" level, Sinister coolant filter, 55w 6000k HID's driving/fog lights, S+B CAI, MBRP 5" DP back exhaust, 35x12.5x20 TIS 20" rims, Nitto Trail Grapplers, adjustable track bar.
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post #4 of 8 Old 09-30-2012, 02:56 PM Thread Starter
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so if I go with a 4" should I go with a turbo back or down pipe back?
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post #5 of 8 Old 10-01-2012, 09:18 AM
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Originally Posted by Lancer250 View Post
so if I go with a 4" should I go with a turbo back or down pipe back?
i'd go turbo back cause you'll get more performance and your turbo will spool faster
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post #6 of 8 Old 10-01-2012, 08:01 PM
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I dont know if your in a county that does emissions testing. i am. so i went with the 5" back and 4' flow pro Dp with a flange so i can re-install my stock exhaust when its time to have my truck inspected. hope this helps
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post #7 of 8 Old 10-02-2012, 06:37 PM
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I ended up going with down pipe back with the mini max, I am still waiting for it to come in. I suggest checking out PTP they have real good pricing and package pricing as well. Might be worth a look. I went with a 5" dp back for a deeper sound. Good luck in your search and with the truck!!



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post #8 of 8 Old 10-03-2012, 08:30 AM
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A turbo back kit will give you the best gains, but is not absolutely necessary. Most people start out with a down pipe back kit and add the down pipe later if they feel the need. Going this route will also make it easy to return to stock.

4" vs 5" is personal preference, most people really like the 5" on these trucks since they are a bit on the quiet side even when straight piped as compared to other diesels.

Feel free to shoot us an email or give us a call if you have any questions, we are here to help.



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