Cat back or turbo back? - Ford Powerstroke Diesel Forum

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post #1 of 31 Old 03-11-2012, 05:05 PM Thread Starter
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Cat back or turbo back?

Is there a big sound difference between the cat-back exhausts and turbo back exhausted?

~Ryan~
Present: 2002 F350 XLT CCLB Dually 7.3L, TS-6pos, 4" Exhaust
2013 Ford Focus ST Black

Past: 2012 CCSB 3500 Cummins (Dads now)
2007 Crew Cab Short Box F250 Lariat 6.0L
2004 CCSB LB7 Duramax EFI Live
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post #2 of 31 Old 03-11-2012, 05:10 PM
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post #3 of 31 Old 03-11-2012, 05:13 PM Thread Starter
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Thinking 4" right now because I heard with 5" the truck gets a little goofy or something...

~Ryan~
Present: 2002 F350 XLT CCLB Dually 7.3L, TS-6pos, 4" Exhaust
2013 Ford Focus ST Black

Past: 2012 CCSB 3500 Cummins (Dads now)
2007 Crew Cab Short Box F250 Lariat 6.0L
2004 CCSB LB7 Duramax EFI Live
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post #4 of 31 Old 03-11-2012, 06:34 PM
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Same question

OK so I am officially a stroker owner as of 3 days ago. Its stock and Im thinking exhaust and cold air intake first. I am also wondering about the pros and cons of cat back or turbo back. Also muffler or straight pipe? Is there a big diff in HP gain or fuel mileage?
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post #5 of 31 Old 03-11-2012, 06:39 PM Thread Starter
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leave your stock intake, it has the best filtration! exhaust part other guys need to help... hope they can help you and me!

~Ryan~
Present: 2002 F350 XLT CCLB Dually 7.3L, TS-6pos, 4" Exhaust
2013 Ford Focus ST Black

Past: 2012 CCSB 3500 Cummins (Dads now)
2007 Crew Cab Short Box F250 Lariat 6.0L
2004 CCSB LB7 Duramax EFI Live
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post #6 of 31 Old 03-11-2012, 06:43 PM
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Hmm ok thanks! Its used but only has 74,000 on it so I just want to take it easy for awhile but thinking the stock exhaust has got to go. Just dont know whats best.
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post #7 of 31 Old 03-11-2012, 07:03 PM
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yeah 4" is the way to go the muffler and cat should go bc it will help with the temps and back pressure anything over 4" is a waste of money
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post #8 of 31 Old 03-11-2012, 07:35 PM
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also depends on the sound you would like. A cat back will leave the cat in place i believe. A turbo beack system (depending on brand ect.) will delete the cat and you can run a muffler(your choice) if you like. That will get you more grunt from your exhaust



2013 6.7 with stuff
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post #9 of 31 Old 03-11-2012, 07:39 PM
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IM good with aggressive sound. Does the exhaust control the amount of smoke it blows or is that controlled more by a tuner?
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post #10 of 31 Old 03-11-2012, 08:09 PM
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Not really alittle but def the tuner will do it but with a more aggresive tune will raise your temp so be carsfull watch those temps the smoke is a plus but you dont want to blow the hg's

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