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Diesel Truck Parts And Accessories

2007.5 - 2010 Chevy/GMC 6.6L LMM Duramax

The release of the 2007.5 LMM Duramax came at a time of great change in the light duty diesel market. Beginning January 1, 2007, new emissions standards were put in place that would forever change th ... read more

Suspension & Steering

Wheels & Tires

The release of the 2007.5 LMM Duramax came at a time of great change in the light duty diesel market. Beginning January 1, 2007, new emissions standards were put in place that would forever change the requirements from the manufacturers for the overall emissions output of the engines. Early off, it was very evident that GM had done their homework ahead of time having the least amount of emissions related failures in comparison to Ford and Dodge. For the most part, there were not any MAJOR changes to the LMM engine in comparison to its predecessor, the LBZ, especially when you compare this to the complete redesign that the Powerstrokes went through and the major overhaul of the Cummins platform. Overall, the LMM's have and are still proving their overall reliability and ease of adding additional horsepower and torque to make them a force to be reckoned with.

As always, if you are uncertain as to what products are right for you and your Duramax, do not hesitate to give us a call.

Products in this section are designed to work on 2007.5, 2008, 2009 and 2010 LMM 6.6L GM Duramax equipped trucks unless otherwise noted.

We get a lot of calls and e-mails each day with various product, vehicle, and installation questions. Some are completely off the wall and can even catch us off guard at times, but many others are fairly routine, so we thought we'd post some of the most popular questions that can hopefully be a good resource for you.

Q: I have an EFILive AutoCal for my earlier Duramax. Can that same tuner work on my LMM Duramax?
A: In short, yes!(Except L5P's) Autocals get linked to the tuners computer so if you are not getting the same company's tunes, you must get it unlocked first by the original tuner so it can be locked to the new tuner. After that, a new VIN license must be purchased to open up a slot on the tuner. And tunes must be purchased for the new vehicle. They would be sent to your e-mail along with instructions to load them onto the tuner.

Q: Will a DPF (Diesel Particulate Filter) back system provide more sound to my truck?
A: Generally speaking no, the emissions equipment upstream will still act as a muffler. However, that doesn't mean installation will not help in other areas by improving exhaust flow. While minor, the benefits are noticeable, plus an aftermarket exhaust looks way better than the stock exhaust.

Q: I'm looking at an exhaust kit on your website, but it doesn't state which cab and bed configuration it fits, will this fit my application?

A: In most cases, unless it is specifically stated as fitting a certain configuration, all exhaust kits on our website will fit all cab and bed lengths. Further, most kits will not fit cab and chassis applications unless otherwise noted.

Q: I'm looking at this 5" (or other) exhaust kit, but my truck only has a 4" exhaust now. Does this 5" exhaust include an adapter / reducer?
A: Yes, the exhaust systems we sell will adapt down to fit the application at the designated starting point (turbo back, cat back, DPF back, etc.) for a hassle free installation.

Q: What are EGT's?
A: EGT stands for Exhaust Gas Temperature, which is the temperature of the exhaust leaving your engine. This measurement is typically measured before the turbo to ensure you are not overheating components. For most applications, we recommend not exceeding 1300 degrees.

Q: Do you offer smoke and lope tunes with any of your preloaded EFILive AutoCal options?
A: No we do not. In short, both smoke and lope tunes create these results at the expense of the overall reliability of your engine. The tuning companies we have chosen to partner with are top notch and are most intested in creating increased power, fuel economy, and overall drivability. We at Diesel Power Products invest a substantial amount of time and effort to ensure that the products we recommend are in the best overall interests of our customers and their trucks, and unfortunately, these types of tunes do not align with that overall goal.

If you've got a question about your Duramax, feel free to give us a call at 888-99-DIESEL and we would be happy to assist.

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