I have lost around 9-10 mpg since installing. Is this normal? Something has got to be wrong
881472
That doesn't sound right. I'd double check the vent tube and oxygen sensor. At the very worst you would not lose mpg, only gain hp.
881473
Lol and to answer your actual question.. I did not lose mpg , you should gain 2-5mpg. Sorry
881474
I know that dyno they used for the hp gain is on a 2009 RAM 1500 5.7 (test sheet comes in package) I got mine for a 2011 RAM 1500 5.7 sport. Ive noticed the trucks response is much quicker not sure about how much hp I gained but I've never heard a intake system taking hp. That shouldn't happen because the setup (for any brand really) allows more air flow to your intake. Then this in return turns into more of a responsive setup. If I had to guess ... You might have a faulty airflow meter which in return isn't telling your truck to adjust to the new setup that my be the reason you fell no hp gain. I know that dyno they used for the hp gain is on a 2009 RAM 1500 5.7 (test sheet comes in package) I got mine for a 2011 RAM 1500 5.7 sport. Ive noticed the trucks response is much quicker not sure about how much hp I gained but I've never heard a intake system taking hp. That shouldn't happen because the setup (for any brand really) allows more air flow to your intake. Then this in return turns into more of a responsive setup. If I had to guess ... You might have a faulty airflow meter which in return isn't telling your truck to adjust to the new setup that my be the reason you fell no hp... » Read More I know that dyno they used for the hp gain is on a 2009 RAM 1500 5.7 (test sheet comes in package) I got mine for a 2011 RAM 1500 5.7 sport. Ive noticed the trucks response is much quicker not sure about how much hp I gained but I've never heard a intake system taking hp. That shouldn't happen because the setup (for any brand really) allows more air flow to your intake. Then this in return turns into more of a responsive setup. If I had to guess ... You might have a faulty airflow meter which in return isn't telling your truck to adjust to the new setup that my be the reason you fell no hp gain. « Show Less
881475
Keep your foot out of it and don't make that sound. I drive as if it's not there unless I need the power and I gained 2-3 mpg over stock
881476
Did you disconnect the battery as instructed to help the ecu reset after installation? I had a slight drop as well and you may need to install a less restrictive exhaust as well. I went with a Magnaflow system. It helped with the sound and the mileage.
881477
Yeah that is not normal and something is definitely wrong. When I installed it, it gave me a slight increase in mpg.
881478
Sounds like you may have your transmission vent hose kinked or your oxygen sensor got damaged when you switched it to the new tube.
881479
Installing this air cleaner should not lower mpg. Did you make any other changes at the same time?
1871176
I got about 1-2 mpg extra on the performance tune... with a gentle right foot. Heavy right foot... not so much of a gain!
2176115
I have open exhaust, idle and driving g sounds normal. Nothing like an import intake.
1795454
My gas mileage definitely improved. More power and torque as wellI'm in canada so we measure in litres/100km. I went from 17-18 litres/100km down to 13-14 litres/100km. About 20-25% fuel savings. Biggest difference is in city driving and towing. They're are a lot of different models, make sure to get the right one for your tuck
1154282
I don't know man. I didn't experience that when I used this filter. Maybe you did some really hard driving or perhaps there was already a lot of crud in the engine.
939786
hope you used new gas ! i got a pressure washer that done the same thing!! i changed air filter/spark plug/(fuel filter) and replaced carburetor!!!! did not have to do any adjustment!! works like a new one.
152742
I have a 2004 F250 V10 the gas mileage went from 11-13 MPG to 13-15 but the power is must more noticeable with regular gas and even more with premium
979610
Try cleaning the air hole on the gas cap first. I replaced the fuel pump, but still had stalling until I cleaned out the air hole in the gas cap.
1874245
I would recommend you getting a tune. The factory tunes run lean as it is so I would seriously advise you to install a tune to compensate for added air flow
1353866
Overall my mileage dropped about the same amount ~15% that the performance increased according to the run on the dyno after the installation. I put a new higher flowing air cleaner, and exhaust system at the same time. Most of the decrease mileage is caused by me using the extra power. If I cruise gently, I get close to the same mileage. There should be a slight decrease from the fact that H-D runs the engine leaner than what is good practice for keeping the engine from overheating. At least that is the story that I have been told by several people. The Cobra tends to add a bit more fuel to the mix which is probably worse for emissions and mileage, but better for engine life. YMMV and YPerformanceMV Overall my mileage dropped about the same amount ~15% that the performance increased according to the run on the dyno after the installation. I put a new higher flowing air cleaner, and exhaust system at the same time. Most of the decrease mileage is caused by me using the extra power. If I cruise gently, I get close to the same mileage. There should be a slight decrease from the fact that H-D runs the engine leaner than what is good practice for keeping the engine from overheating. At least that is the story that I have been told by several people. The Cobra tends to add a bit more fuel to... » Read More Overall my mileage dropped about the same amount ~15% that the performance increased according to the run on the dyno after the installation. I put a new higher flowing air cleaner, and exhaust system at the same time. Most of the decrease mileage is caused by me using the extra power. If I cruise gently, I get close to the same mileage. There should be a slight decrease from the fact that H-D runs the engine leaner than what is good practice for keeping the engine from overheating. At least that is the story that I have been told by several people. The Cobra tends to add a bit more fuel to the mix which is probably worse for emissions and mileage, but better for engine life. YMMV and YPerformanceMV « Show Less
1517693
Mine was turbo'd and straight pipe'd when I got it and I live in Texas so it was the only way I could pass emissions, as far as power gains I'm not real sure since all I did was a rebuild and sold it with 30 miles on the engine
1871172
You may get 1 or 2 mpg better but its not a guarantee. Mostly depends on how you drive, how long and often you idle the truck and also fuel quality.
1633462
Well I have a 2006 f150 fx4 and I was getting an average of 10-12 mpg in the city and 14-15 mpg on the hwy. I have nitto 305/55 r20 tires and if I run it on power mode with premium fuel I average 14 mpg no matter where I go towing or the truck alone and now I run it on economy with reg fuel and average 15 mpg unless I'm pulling then I only get 13 mpg. Hope this helps!
238083
I have definitely. Before the install I was averaging about 19 city and 26 highway. After I'm looking at right around 24 city and and 32 highway... about an extra 40+ miles per 15 gallons. ALSO better acceleration and easier cruising.
14627
I didnt notice any change on MPG. I have a dodge ram 1500 5.7 and always get 12.9 around town and and roughly 17 highway. My tires are now a year old and look as good as when i put them on.
1439016
Yes, I am getting 1 or 2 mpg better than without it. For an upgrade this well priced, you can't go wrong really.
1775303
Before installing I was getting between 27 to 29 mpg highway. After installing during a 3000 mile trip I averaged between 31 to 33 mpg. I used a fram filter with it. It was installed on a 2005 Focus