4" exhaust!!!!! turbo or cat back???? - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 8 (permalink) Old 03-31-2010, 02:40 PM Thread Starter
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4" exhaust!!!!! turbo or cat back????

im wanting to install a 4" exhaust on my 07 f250 6.0'. Which is better the TURBO back kit or the CAT. back kit. Any advice will be greatly apperciated. Im confused..
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post #2 of 8 (permalink) Old 03-31-2010, 02:45 PM
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Re: 4" exhaust!!!!! turbo or cat back????

Turbo Back, the cat is the biggest restriction of our exhaust systems, so the off road system that deletes the cat is the best. If you have any other questions, feel free to ask.

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post #3 of 8 (permalink) Old 03-31-2010, 02:45 PM
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Re: 4" exhaust!!!!! turbo or cat back????

Turbo back. IIRC cat back is basically useless. Also, make sure the kite includes a larger down pipe.

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post #4 of 8 (permalink) Old 03-31-2010, 04:36 PM
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Re: 4" exhaust!!!!! turbo or cat back????

Turbo back is the only way to go. If you want, MBRP makes a kit that retains the factory cat that you can swap in and out if you need to. Let me know if theres anything I can help with.
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post #5 of 8 (permalink) Old 03-31-2010, 05:53 PM
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Re: 4" exhaust!!!!! turbo or cat back????

TURBO BACK DITCH and THE KITTY!!!

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post #6 of 8 (permalink) Old 03-31-2010, 06:18 PM
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Re: 4" exhaust!!!!! turbo or cat back????

Turbo back. The biggest restriction is the turbo itself. The exhaust is a 3% restriction to overall power.

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post #7 of 8 (permalink) Old 04-01-2010, 12:05 AM
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Re: 4" exhaust!!!!! turbo or cat back????

Another vote for turbo back. If you go with a MBRP kit and opt for the cat and muffler delete pipes, you have the flexibility of putting your cat or muffler back on relatively easily as needed.

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post #8 of 8 (permalink) Old 04-05-2010, 11:07 PM
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Re: 4" exhaust!!!!! turbo or cat back????

Turbo back...I run a MBRP 4" turbo back....sounds like a 737 taking off...
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