cat back vs turbo back - Ford Powerstroke Diesel Forum
6.0L Performance Parts Discussion What has or has not worked for you?

 
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post #1 of 9 Old 10-05-2008, 03:41 AM Thread Starter
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cat back vs turbo back

I have a 2006 F250 and was wondering if there are any downsides to having a tb system with cat delete pipe. ie, check engine light, performance issues, etc. I am looking at the MBRP 5" system but was wondering what else you would have to do going the tb+cat delete route and any issues that may be involved. Thanks!

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post #2 of 9 Old 10-05-2008, 09:27 AM
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There aren't any downsides to TB exhaust. Except the loss of milage because your flooring it all day long. Niccceeee


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post #3 of 9 Old 10-05-2008, 09:53 AM
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With a full Turboback you might lose a little "off-the-line" power but that's it. I have a 4" TB and no way I'd do a 5". 4" is plenty unless you are going real big.

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post #4 of 9 Old 10-05-2008, 12:05 PM Thread Starter
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So it doesnt pop on a check engine light or mess with the onboard computer at all? Also, why wouldn't you go with 5", bigger looks nicer (and sounds nicer)

Thanks

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post #5 of 9 Old 10-05-2008, 12:20 PM
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Quote:
Originally Posted by fglassburn View Post
So it doesnt pop on a check engine light or mess with the onboard computer at all? Also, why wouldn't you go with 5", bigger looks nicer (and sounds nicer)

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Sounds nicer? Not really. And no, it will not throw a CEL.

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post #6 of 9 Old 10-05-2008, 12:22 PM
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sound is nearly the same i would go with 4 inch you get the same power gains and mpg gains and you save money. unless you plan on haveing over 500rwhp you dont need 5inch

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post #7 of 9 Old 10-05-2008, 04:44 PM
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The 6.0 monitors virtually nothing emissions related, so it's pretty hard to get a check engine light for anything exhaust related except an EGR delete, and even then only certain strategies will throw a cel.

Here's another thumbs up on the 4" turbo back. You definitely don't need the 5". FYI: Most 4" systems are 4" after the downpipe. The downpipe is usually 3.5". You can get a 4" downpipe, but it can be a real pain to install and isn't necessary. Sometimes you even have to hammer in clearance in the firewall to make it fit.


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post #8 of 9 Old 10-05-2008, 04:48 PM
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yah + 1 more for 4" kit... the 5" kit sounds a lil deeper and is a lil more difficult to install because of the size .....
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post #9 of 9 Old 10-05-2008, 05:36 PM
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Wont the 5" increase more turbo lag as well?


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