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Description
Airdog II-5G 165 GPH Air Fuel Separation Lift Pump System 15-16 6.6L GM Duramax LMLWhy GM opted to not include a factory fuel lift pump on all of the early model Duramax's is still a mystery. This lack of consistent fuel pressure coupled with the switch from the proven CP3 to a CP4 injection pump beginning in model year 2011 has spelled disaster on these trucks, especially for those trying to increase the horsepower through performance programmers and or larger displacement injectors. Even at stock power levels, this insufficient
Why GM opted to not include a factory fuel lift pump on all of the early model Duramax's is still a mystery. This lack of consistent fuel pressure coupled with the switch from the proven CP3 to a CP4 injection pump beginning in model year 2011 has spelled disaster on these trucks, especially for those trying to increase the horsepower through performance programmers and/or larger displacement injectors. Even at stock power levels, this insufficient fuel pressure and volume equates to limited overall power, decreased fuel economy, and potentially harming the injection pump and injectors due to a lack of lubrication.
The AirDog II-5G is an all in one premium fuel pump and filtration system for your 2015-2016 LML Duramax diesel. This system removes water, particulates, and entrained air from the diesel fuel. The entrained air that is separated from the fuel is returned to the tank through a small return fitting. The fuel is delivered to the engine at the correct pressure and flow rate to meet the demands of the engine under all operating conditions.
The AirDogII-5G DF-165 systems feature a built in adjustible diaphragm pressure regulator. All AirDog II-5G systems include a complete installation kit. The AirDog II-5G, for this particular application, is preset at 8-10 psi from factory for a stock application. The regulator is adjustible up to 55 psi for fine tuning the system to perfectly match up to your current and future performance upgrades.
HOW IT WORKS:
The AirDog II-5G DF-165 draws fuel from the fuel tank through a 5/8” suction line to reduce the risk of cavitation at the pump. The fuel is then drawn through the water separator where 92% of water is removed per SAE spec 1488. It is then pressurized through a Gerotor pump and sent to the 2 micron fuel filter before it is sent to the injection pump. The air from aerated fuel, due to tank sloshing and engine return lines, is separated and sent back to the tank through the 3/8” return fitting. The excess fuel that the engine does not use is recirculated through the diaphragm regulator back to the suction side of the pump.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.3 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 5
It’s a great bargain.
Color: A-Abyss Blue
Fits nicely. Good quality and it’s sturdy.
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Reviewed in the United States on June 5, 2026
★★★★★ 5
Great cover for the money
Color: Green
Looks a fits great. Should be a nice protector for my wife’s new iPad. Quick delivery. She likes the color!
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Reviewed in the United States on March 24, 2026
★★★★★ 5
Perfect for Ipad
Color: A-Abyss Blue
Very sturdy and perfect for the apple ipad. My son loved it he says it looks very professional.
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Reviewed in the United States on March 29, 2026
★★★★★ 5
Perfect!
Color: A-Abyss Blue
I'm very pleased with this case. Does the job, easy to put on and the color blue is beautiful!
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Reviewed in the United States on April 14, 2026
★★★★★ 4
Sleek look and perfect fit, but the stand stability needs a tweak
Color: A-Abyss Blue
I purchased the TiMOVO case in Abyss Blue for my iPad, specifically looking for something that offered protection without adding the bulk of a heavy-duty rugged case. After using it for a week, I think it is a very strong contender for the price, though there is one specific design element that keeps it from being a perfect 5-star product.
The Positives:
Precision Fit: The shell snaps on with a very satisfying click. The cutouts for the speakers and USB-C port are perfectly centered. Crucially, the cutout for the Touch ID power button provides ample room for my finger to unlock the device instantly—a problem I’ve had with other cases that are too thick around the button. The pen holder is also great.
Aesthetics: The "Abyss Blue" is a sophisticated, muted navy that looks professional. I really appreciate the hard translucent back; it’s a nice touch that allows the Apple logo to show through while resisting fingerprints much better than clear glossy plastic.
Auto Wake/Sleep: This functions exactly as it should. The magnets are strong enough to keep the cover closed when I toss it in my bag, so I haven’t had any issues with battery drain.
Where it falls short (Why 4 Stars): While the materials are good, the trifold stand mechanism could be improved. When folded into the "viewing" (upright) position, the magnets holding the triangle shape aren't quite strong enough. If I tap the screen too enthusiastically while selecting a movie, the stand occasionally collapses.
Additionally, while the hard back looks great, it is a bit slippery. A slight rubberized coating on the translucent polycarbonate would make holding the iPad one-handed much more secure.
Verdict: If you want a slim, lightweight case that looks premium and protects against scratches, this is an excellent choice. However, if you do a lot of heavy tapping or drawing while the iPad is propped up, you might find the stand stability slightly lacking.
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Reviewed in the United States on January 20, 2026
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