DPF Delete Installed
#1
DPF Delete Installed
Hey y'all, I finally got around to deleting the pesky exhaust stuff on my 6.7L Cummins. I bought these components:
H&S Performance stainless DPF delete kit w/ downpipe - $319
H&S Performance EGT sensor sims - $40
Aero 4040XL muffler w/ resonator - $153
MBRP black 5" tip T5051BLK - $66
A local shop did the install for me. Everything behind the turbo was removed except for the tailpipe. The tech said the H&S kit only had one hanger on it, so he welded on another. I kept the old exhaust stuff just in case I ever need to return it to stock configuration.
I've only put about 75 miles on it since the install, but here are my initial observations:
- The exhaust sound is a little louder than I expected, but it's not harsh or droning.
- EGTs are considerably lower! I have a pyro probe in the exhaust manifold hooked up to an Auto Meter EGT gauge. Cruising on the highway normally generated 800-900 degrees; now it's more like 600 degrees.
- The exhaust brake is not as effective as it was with the original exhaust, probably because it has a lot less back pressure.
- The overhead readout is already showing higher MPG since the engine no longer goes into regeneration.
- The turbo seems to spool up a little faster.
So far I love this modification. The lower EGTs should make the turbo last a lot longer. I'll get back to you guys with what happens to long term fuel economy.
H&S Performance stainless DPF delete kit w/ downpipe - $319
H&S Performance EGT sensor sims - $40
Aero 4040XL muffler w/ resonator - $153
MBRP black 5" tip T5051BLK - $66
A local shop did the install for me. Everything behind the turbo was removed except for the tailpipe. The tech said the H&S kit only had one hanger on it, so he welded on another. I kept the old exhaust stuff just in case I ever need to return it to stock configuration.
I've only put about 75 miles on it since the install, but here are my initial observations:
- The exhaust sound is a little louder than I expected, but it's not harsh or droning.
- EGTs are considerably lower! I have a pyro probe in the exhaust manifold hooked up to an Auto Meter EGT gauge. Cruising on the highway normally generated 800-900 degrees; now it's more like 600 degrees.
- The exhaust brake is not as effective as it was with the original exhaust, probably because it has a lot less back pressure.
- The overhead readout is already showing higher MPG since the engine no longer goes into regeneration.
- The turbo seems to spool up a little faster.
So far I love this modification. The lower EGTs should make the turbo last a lot longer. I'll get back to you guys with what happens to long term fuel economy.
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