DPF Back Systems - Chevy and GMC Duramax Diesel Forum
2017+ L5P Performance Parts Discussion Discussion of Performance Parts For the '17 and up L5P Duramax Trucks No Advertising

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post #1 of 34 (permalink) Old 10-07-2019, 09:09 AM Thread Starter
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DPF Back Systems

Good morning everyone,

From what I can see and what I have read, I may be wrong on this which that's ok, all the DPF Back Exhaust Systems don't provide much additions other than better flow and looks.

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post #2 of 34 (permalink) Old 10-07-2019, 09:25 AM
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Flow is debatable. The banks supposedly cools better than stock and won't melt your fifth wheel front. Personally, I think is just because it changes the angle of the exit.

They do look nicer, though
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post #3 of 34 (permalink) Old 10-07-2019, 09:46 AM
J83
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Quote:
Originally Posted by tony.j.reese View Post
Good morning everyone,

From what I can see and what I have read, I may be wrong on this which that's ok, all the DPF Back Exhaust Systems don't provide much additions other than better flow and looks.

IMO, totally useless. If you take a garden hose, clamp it down in the middle with a pair of vice grips and blow through it, does it matter how thick the hose is on either end of the restriction?
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post #4 of 34 (permalink) Old 10-07-2019, 09:53 AM Thread Starter
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IMO, totally useless. If you take a garden hose, clamp it down in the middle with a pair of vice grips and blow through it, does it matter how thick the hose is on either end of the restriction?
If there were any positives other than better airflow and looks I would agree with the prices that they are sticking on them, but $599 for 5 inch tubing and a tip.

2019 Silverado 2500HD High Country
- S&B Cold Air Intake
- S&B MAP Sensor Spacer
---Coming Up---
Leveling Kit or Lift Kit
Blackened Out Badges
Bed Light Kit
Switchback Style Headlights w/ HID or LED bulbs
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post #5 of 34 (permalink) Old 10-07-2019, 09:55 AM
J83
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If there were any positives other than better airflow and looks I would agree with the prices that they are sticking on them, but $599 for 5 inch tubing and a tip.
oh yea, your just paying for bling at that point, no function what so ever. In fact, you may even end up with bumper damage from the heat if the aftermarket tip performs worse than factory.
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post #6 of 34 (permalink) Old 10-07-2019, 05:08 PM
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Just for looks and a little different angle.
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post #7 of 34 (permalink) Old 10-07-2019, 05:14 PM
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After seeing all the pics of the warped campers from the OEM tip I figured it was worth it to change the exhaust flow direction, there are cheaper ways to do the same thing but I found a great price on my 5" magnaflow and jumped on it.
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post #8 of 34 (permalink) Old 10-09-2019, 07:09 AM
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Any issues throwing codes at all or limp mode
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post #9 of 34 (permalink) Old 10-09-2019, 07:09 AM
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I have one on my truck all sensors n such are plugged in n I’m still throwing codes n stuff I don’t get why tho
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post #10 of 34 (permalink) Old 10-09-2019, 07:10 AM
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Let me know thanks
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