2004-2010 6.6L LLY LBZ LMM Duramax CCV PCV ReRoute Delete Kit
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- Brand: SPETUNER
- SKU: #10156
- Availability: Many in stock
- Product Type: CCV Reroute Kit
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- Description
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- Review + Q&A
CCV/PCV Delete Kit for 2004–2010 Duramax 6.6L (LLY / LBZ / LMM)
Say goodbye to oily intake boots and engine bay mess. This complete CCV reroute kit is designed to eliminate crankcase blow-by issues on your 6.6L Duramax, keeping your engine cleaner and running stronger for the long haul.
Why Delete Your CCV/PCV System?
The stock closed crankcase vent (CCV/PCV) system on Duramax engines is notorious for allowing oil vapors to recirculate back into your intake. Over time, this leads to:
Gummed-up intercooler boots
Oil-soaked turbo inlet pipes
Reduced performance and longevity
This CCV delete kit vents crankcase gases to the atmosphere with a clean, high-flow solution that improves engine health and simplifies under-hood routing.
🚗 Fitment
Compatible with the following Duramax-powered trucks:
2004–2010 Chevrolet Silverado 2500/3500 HD (6.6L LLY, LBZ, LMM)
2004–2010 GMC Sierra 2500/3500 HD (6.6L LLY, LBZ, LMM)
✔️ Off-road use only
What’s Included
8ft of ¾” reinforced silicone hose – oil-resistant and flexible
Black anodized billet fittings – built to last and resist corrosion
Straightforward Venturi-style routing – no baffles, no restrictions
Installation PDF and diagram link for quick and easy setup
Click to view the installation diagram and access the installation PDF document.
Key Benefits
🛡️ Cleaner Intake System – No more oil pooling or boot soak
🔄 Better Flow – Simplified routing reduces pressure build-up
🧰 More Space – Eliminates the bulky stock CCV box
🛞 Long-Term Reliability – Prevent oil-related component wear
💧 No Mess – Smart design prevents drips or leaks
Why Choose SPETUNER?
We specialize in premium diesel performance parts for Ford, RAM, and GM trucks. Every product is tested, backed by expert support, and ships fast from North America.
📦 Order Yours Today
Enhance your Duramax with this CCV delete solution and extend the lifespan of your engine.
🔧 Click below to check fitment and add to cart.
Q1: What does a PCV reroute do on a Duramax?
A1: Rerouting the PCV system on a Duramax allows crankcase gases to vent externally, preventing them from entering the intake. This helps reduce oil buildup in the intercooler, turbo piping, and intake manifold, improving long-term engine reliability.
Q2: What does a CCV reroute kit do?
A2: A CCV reroute kit eliminates the factory closed crankcase ventilation system, which recirculates oil vapors back into the intake. By venting externally, the kit keeps your intake system clean and minimizes turbo wear from oil contamination.
Q3: Is a CCV delete bad for my Duramax engine?
A3: No, it's actually beneficial for off-road applications. A CCV delete reduces oil contamination in the intake system, which can prolong turbo and engine component life. However, it is intended for off-road or race use only.
Q4: Will this kit fit my 2007 LBZ Duramax?
A4: Yes, this kit is designed to fit all 2004–2010 6.6L Duramax engines, including LLY, LBZ, and LMM models. It fits Silverado and Sierra 2500/3500 HD trucks.
Q5: Do I need a catch can with this CCV delete?
A5: No catch can is required. This kit uses a direct venting system with reinforced hose and high-flow fittings to ensure clean evacuation of crankcase pressure without pooling or dripping.
Q6: Will installing this kit trigger a Check Engine Light (CEL)?
A6: No, installing this mechanical PCV/CCV reroute kit on 2004–2010 Duramax models will not trigger a Check Engine Light.
Q7: How long does it take to install this CCV delete kit?
A7: Installation is straightforward and typically takes about 1 to 2 hours using basic hand tools. A detailed installation PDF is included for guidance.
Q8: Is any custom tuning or programming required after installation?
A8: No, there is no tuning, flashing, or programming required. It is a simple mechanical upgrade that works perfectly with stock tuning.
Q9: Does this kit include all the necessary hardware?
A9: Yes, the kit comes complete with 8ft of reinforced silicone hose, black anodized billet fittings, and routing accessories for a hassle-free install.
Q10: How often should I perform maintenance on the reroute hose?
A10: The system is virtually maintenance-free. However, it is recommended to periodically inspect the hose during regular oil changes to ensure it remains free of kinks or blockages.
Let customers speak for us
The reroute kit was high quality and easy to assemble it really cleaned up the space on my 2014 lml .
The price doesn’t Reflect on the product. Very high quality heavy duty parts . The only thing lacking is instructions that would have put this kit over the top . I did the full lml delete and pcv reroute . The kit doesn’t come with the up pipe you have to order that separate.
Better sound, more power. Love it!
Purchased SPE delete for a F450. Was a little more than I could do to install. Took to my mechanic who installed it. He couldn't stop raving about the quality of the kit, and the difference it made in the truck's performance. This truck would endlessly code saying "cleaning exhaust filter" over and over. All of that nonsense is gone, the truck runs 100% better. AND went from 8.9 mpg to 15.1 mpg! Overly satisfied!
Everything went together good besides having to figure out the installation with only pictures. A video or better installation instructions would have been very helpful. Truck runs and sounds great now!
I was a little scared it would make the truck sound like a soda can but it actually sounds deeper and way better so I can’t complain easy to install ( if you have the long bed you may need to cut back 4” off one of the middle pipes to get the hangers to line up very easy solution make sure you cut the side that doesn’t have a bell end)
be sure to update mini Maxx with the latest firmware 2.0.0.8 FIRST! I learned that lesson😟
I also on my 2019 ram ended up plugging OBD bypass into middle row fourth one up after doing that I got zero codes truck runs great !! customer service isn't a whole lot of help mini maxx responds to emails but not quickly.
The product is great. Does what it's designed to do.
The instructions? Not so much. Luckily, the Customer Service people do their best when emailed and walk you through the process start to finish. The only other thing I'd like to see are the basic beginning settings for setting up "defuel". Every engine is different (Ford/Chevy/Dodge) and finding this info through forums is terrible.
I currently have the DPF deleted, the EGR turned off, and the race pipe has a 27" stainless resonator added to keep it quiet. It rolls coal on "Extreme" and the increase in power on "Stock" is very apparent. I run it on "Stock" 100% of the time and gained over 2 mpg so far on the first tank.
2013 F350 Crew Cab Dually 50225 miles on odometer. No rust anywhere, pristine Cali truck. I guess the original owner couldn't afford to drive it. LOL
It was packaged very nicely, quality is top notch and installation was very easy. Had installed in about an hour. That was taking my time and removing the old exhaust. Would highly recommend!
The craftsmanship is superb and wish I could say the same for the OEM Plastic CCV box. The four security screws were challenging and used Irwin external extractors versus easy outs.
I received both the EGR and Downpipe delete kit quick but there is no Tuner! No tracking number for the tuner and says all my parts have been delivered! What the heck no one spent a grand on a straight pipe and EGR! However they did fix it promptly and I did receive the tuner! So I would say five stars
Honestly, the exhaust was much nicer than I expected fitment wise. It fit just as well if not better than exhaust systems I have installed in the past that were a few hundred more dollars. Shipping time was pretty good as well… received it the same week I ordered it. That’s about all I can speak on for now as I have only put about 100 miles on it.
Everything you need and nothing you don't. The parts install really impressively smoothly.
Could definitely use better / ANY instructions, especially since youtube vids on deleting trucks have been taken down lately.
It took a day of searching and watching vids here and there to find out it is extremely important to go in a certain order:
1: install the tuner first
2: install a "smog equipment has been removed" tune even though the truck still has the equipment at the moment.
3: remove the dpf and egr bits
Money well spent. Install was simple. Do not misunderstand simple with easy. Although it was easy for me. Install of the MINI MAXX V2 was a bit different. The video provided on the site was not how my installation went. In fact it was very different. With that, it did go as expected. The tuner does have some what of a learning curve, not very much info out there now with all the bureaucratic garbage we, in the US, have to contend with. It is out there, just TOUGH to glein. The removal of that gargantuan nightmare of an exhaust filter was not for the faint of heart. It is heavy, and the connectors on all those sensors can be challenging. It will be worth the struggle. The removal of the Extra Grace Required part was the hardest part for me. Having had my exhaust and turbo out 2 times, one of the bolt heads got damaged in the last re-install. That took a huge amount of patience and correctly applied downward force and a special tool. FYI THE PYROS DO NOT READ CORRECTLY ON 2011 F350 IT WILL ONLY READ 1193°!
Then the block off bypass parts, easy install. Looks great and does everything I expected. As a plumber I was able to use some expansion couplings and cut the water tubes and did not use the supplied hose. Then back on the ground to install the exhaust pipe. That was a challenge. The hanger bracket wasn't quite on par and was bent a bit. Nothing like a torch and a quality set of Pittsburgh 3/4" box end wrenches. Got that squared away, lined everything out and the slip joint went in nicely. I only used one of the 3 bolt flange bolts because I saved 2 of the pressed in studs. The down pipe connector flange was a special kind of hurrah. Perseverance, busted knuckle, and lots of upward pressure, accomplished that.! Overall I like the kit, don't like it doesn't come with instructions, but if you're buying this kit I'm betting you're already a mechanic anyway. HUGE THANKS TO SPETUNER.
One more thing, FedEx delivered my 1st kit to 2 wrong addresses, SPETUNER made it right and sent out a new kit for my. That is worthy of my review!
No instructions, but plenty of videos on the tube, pretty strait forward instalation. Made a world of difference in how the truck runs and MPG.