Who else could crack all the high-tech behind the all new 6.6L Duramax LML but the daddy of DPF Deletes, H&S Performance? Presenting the 4" Cat-Back DPF-Delete Exhaust without Muffler kit for your 2011-2012 Chevy/GMC 6.6L Duramax LML — engineered to act and feel just like the off-road racing machine it’s been dying to be! Designed for closed-course racing, the 4" DPF-Delete Exhaust replaces the Diesel Particulate Filter with a single free flowing 4" aluminized steel, mandrel-bent pipe — so no more clogged DPFs to end your day at the track early. It’s time to step up your game and leave the others behind.

Key Features

• Free flowing 4" mandrel-bent aluminized steel pipes
• Bolt-On Design — No cutting or welding necessary
• Replaces exhaust system from catalytic converter to tail pipe
• Removes the DPF – reducing damaging EGT’s and premature engine wear & tear
• Includes step by step instructions to optionally remove the DEF/UREA tank
• Requires a LML compatible H&S tuner — XRT Pro, Mini Maxx or Black Maxx to work correctly
• Excellent customer service & support for which H&S Performance is known

^{The H&S Tuners: XRT Pro, Black Maxx & the Mini Maxx}

H&S exhausts are designed for maximum flow with straight-piped sound. You can be sure these mandrel-bent pipes flow better than anything else out there, and sound even better! When used with one of the Duramax LML compatible H&S tuners — Mini Maxx or Black Maxx — this 4" DPF-Delete kit will not throw error codes or trigger the Check Engine Light. When you’re ready to take your 2011 or 2012 6.6L Duramax LML to new performance heights — an off-road exhaust system from H&S Performance is in your future! Not only will you feel the difference on the track, you’ll hear it too! Recently H&S installed the DPF-Delete exhaust kit -– with their Black Maxx tuner set to *"Hot!" Listen to this!

Consider including a stainless steel or black chrome H&S universal tip to complete this innovative exhaust system. Choose from either a 5" or 6" rolled-edged angled tip or a shorter 13" long, 5" outlet double walled, slanted — resonated tip for a dramatic looking effect. All tips presented here are bolt on kits for easy & secure installation.

This is a Race Only product used solely for competition. Its use is limited to closed-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state and federal laws ^{(see notes below)}. Removal of the DEF/UREA tank standard in all 2011 6.6L Duramax LML’s is recommended but NOT required when running H&S Performance DPF-Removed Tuning.

Notes:

• All DPF-Delete kits will engage the Check Engine Light unless they are installed in conjunction with an H&S Tuner.
• There aren’t any threaded bungs welded into this exhaust kit. No Bungs! H&S exhaust kits are designed to work with H&S Tuners which do not require any sensors to be re-installed into the new exhaust system.
• This exhaust kit does NOT include a tip — however, several H&S universal tip kits are available when ordering above.
• This high performance exhaust is intended solely for closed-course racing use and is not street legal in ANY state. This exhaust system cannot be used on any vehicles registered or certified for highway use. Please check your local, state, & federal laws before purchasing. This exhaust system 861 is not legal for sale or use in the state of California.

H&S FloPro   4" Cat-Back DPF-Delete No Muffler kit 861 will fit:

• Fits All 2011 – 2012 LML Duramax

Links

• Manufacturer Product Web Page
• Product Installation Manual: Coming Soon!
• DEF/UREA Tank Removal Instructions
• Manufacturer F.A.Q
• Manufacturer Product Support
• H&S Performance Warranty

Manufacturer Contact Info:

888-628-1730
h4. 435-628-1730

H&S Performance, LLC
4012 S. River Road
St. George, UT 84790