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EDGEMAN

Joined: 01/05/2001 Posts: 124899
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Will, good to know!


I would grade the MPG drop being worth it to avoid those engine issues down the line. Longevity and reliability are at the top of my "wish list." One day GM may solve the lifter issue...maybe switch back to mechanical lifters? (I know that isn't going to happen...lol)

If you plan to keep this truck "long term," recommend going with a stainless steel aftermarket exhaust. I would also look at installation videos to see which ones you can install yourself. Some require welding, and others will bolt in. The bolt in "cat back" systems are fairly straight forward and easy to install yourself. Just make sure you order the correct one for your truck. They will offer different lengths for standard cabs, extended cabs, and crew cabs.

Happy motoring!

(In response to this post by Will Stewart)

Posted: 05/28/2020 at 2:10PM


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Current Thread:
 
  Installed the DFM Disabler on the Sierra the other day. It gets a solid "A" -- Will Stewart  05/28/2020 10:50AM
  GM isn’t required to make sure you get a certain MPG. They just have to -- vatechcowpatty 05/28/2020 4:02PM
  I wonder if your MPG is actually worse than you think -- turkeytrot 05/28/2020 2:31PM
  Will, good to know! -- EDGEMAN 05/28/2020 2:10PM
  I've learned not to plan on keeping vehicles long term. -- Will Stewart  05/28/2020 2:29PM
  Regarding the reduced mileage, it is -- Spudnut 05/28/2020 2:05PM
  Yeah, the focus on gas mileage always makes me chuckle. -- Will Stewart  05/28/2020 2:20PM
  But most of the gas mileage discussion is not focused on the consumer, it's -- HokieEngineer 05/28/2020 3:38PM
  Exactly. ** -- Will Stewart  05/28/2020 5:06PM
  You should have -- Spudnut 05/28/2020 2:40PM
  I did the same on my Ram with its "MDS" system. -- MP4VT2004 05/28/2020 1:26PM
  Does a Super Chip void the warranty? ** -- Will Stewart  05/28/2020 1:33PM
  Will, can you give us an update in another 10k miles - some reviews online -- 3011Cochrane 05/28/2020 12:45PM
  Yep, I'll let you know. -- Will Stewart  05/28/2020 1:23PM
  Deleted** -- VT Pops 05/28/2020 12:30PM
  Wish they made one for my old Sub...Z71 '07. ** -- Vtskier1 05/28/2020 12:21PM
  It works on a 2007 Suburban. Here's a review. -- Will Stewart  05/28/2020 1:27PM
  Well...there is this one too... -- Vtskier1 05/28/2020 1:46PM
  I did the same with the wife's '06 Odyssey. It was like a new, yet beat -- Josey Wales 05/28/2020 12:20PM
  That truck is too sexy. I am pretty sure that is where I am headed, I just -- 3011Cochrane 05/28/2020 12:16PM
  Vroom vroom ** -- LonghornHokie 05/28/2020 11:42AM
  I just sold a 2012 that had the non electronic DoD -- typed by ben 05/28/2020 11:37AM
  What model year is the Sierra? ** -- Hokie360 05/28/2020 11:25AM
  2019 ** -- Will Stewart  05/28/2020 1:28PM
  On days like this I recall seeing that Will is an engineer. Inland proud! ** -- PhotoHokieNC 05/28/2020 11:20AM
  Yep, he's a car (truck) guy! ** -- `lag 05/28/2020 12:01PM
  Uh why would you expect the same or better mpg with all cylinders engaged? -- HokieForever 05/28/2020 11:14AM
  I would not expect it. -- Will Stewart  05/28/2020 1:29PM
  Er, what? ** -- `lag 05/28/2020 11:01AM
  120k-130k is old? ** -- 48zip 05/28/2020 10:59AM
  Making the point that it doesn't cause failures within, like, 50k miles -- Will Stewart  05/28/2020 11:06AM
  What sort of failures is it causing and how? ** -- Pylons 05/28/2020 12:29PM
  In the old AFM system, it switches from V4 to V8 mode. -- Will Stewart  05/28/2020 1:31PM
  Gotcha. You did say "older", not "old". ** -- 48zip 05/28/2020 11:08AM
  It's all in your head. ** -- Stork 05/28/2020 10:51AM
  Definitely not. ** -- Will Stewart  05/28/2020 11:06AM

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