Cat back vs Turbo back Exhaust - Ford Powerstroke Diesel Forum
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Old 07-07-2010, 09:55 AM
Vip Vip is offline
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Cat back vs Turbo back Exhaust

Right now I have a cat back 4" straight pipe on my truck. I was wondering if there is much difference in performance or noise between that and running 4" from the turbo back?

I'm trying to gain a little more turbo noise and if it'll reduce EGT's that's just a side benefit.
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Old 07-07-2010, 10:06 AM
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Quote:
Originally Posted by Vip View Post
Right now I have a cat back 4" straight pipe on my truck. I was wondering if there is much difference in performance or noise between that and running 4" from the turbo back?

I'm trying to gain a little more turbo noise and if it'll reduce EGT's that's just a side benefit.
Is the cat still on the truck or is it deleted?
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Old 07-07-2010, 10:07 AM
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The Cat is still on the truck, starting after the cat it is a staight 4" run to the rear.
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Old 07-07-2010, 10:09 AM
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Originally Posted by Vip View Post
The Cat is still on the truck, starting after the cat it is a staight 4" run to the rear.
Order a cat delete pipe you will be fine.
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Old 07-07-2010, 10:13 AM
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Turbo back will give you more turbo noise, and probably lower EGT's(more free flowing). As long as you not in a state that has emission testing. I run a 4" turbo back MBRP with a 5" tip and like it...Good Luck....Steve
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Old 07-07-2010, 10:18 AM
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So I am runnin a 4" magnaflow system from downpipe back with no kitty and a magnaflow muffler. Would I stand to gain anything by removing the muffler and going straight out?
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Old 07-07-2010, 10:25 AM
Vip Vip is offline
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Going to the muffler shop after work to see what it'll cost to have them piece a cat-delete in there in the interest of $$$. Truck is bone stock and I won't be putting a serious tune on it any time soon so not sure running new 4" all the way up to the turbo will gain me much for the cost. Thanks for all the input -
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Old 07-07-2010, 10:30 AM
Almostdunfukinwidit


 

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Originally Posted by tmanscrew View Post
So I am runnin a 4" magnaflow system from downpipe back with no kitty and a magnaflow muffler. Would I stand to gain anything by removing the muffler and going straight out?
You will gain some exhaust tone and turbo whistle. Thats about it
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Old 07-07-2010, 10:50 AM
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Thanks, Dave. Didn't know if the muffler was causing enough restriction to justify removing or not. Kinda like the way it sounds now. Thanks again.
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Old 07-15-2010, 10:06 AM
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Ended up removing the cat and replacing the down pipe with 4" so it's now a straight 4" from the turbo back. Love the sound!
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