Stage 1 Problems
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Joined: Sep 2007
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Stage 1 Problems
I installed Krome Werks slip on mufflers with a Cobra Fi 2000and K&N RK-3909.. The engine is very free reving now..But I lost my torque, when accelerating...........I replaced my original filter box back...my torque is back again...why did I lose torque in low to midrange with the K&N? filter kit?
Road Captain
Joined: Jan 2006
Posts: 603
Likes: 14
From: AZ
RE: Stage 1 Problems
I had the same exact problem on my '07 FLHX. My bike has stage 1 download, screamin eagle one piece street legal mufflers, stock air box with kn filter element runs awesome. I had that pos kn kit, leaked oil everywhere. I took it off and went with the s/e a/c kit. After reading Joe Mintons article in American Rider where he did a comparison between air filters and proved that stock air box makes more torque in usable range I decided to put my stock air box back on to try.He was right bike makes more low end torque.
Cruiser
Joined: Sep 2007
Posts: 217
Likes: 1
From: Out west ... sorta'
RE: Stage 1 Problems
ORIGINAL: fastbagger
I had the same exact problem on my '07 FLHX. My bike has stage 1 download, screamin eagle one piece street legal mufflers, stock air box with kn filter element runs awesome. I had that pos kn kit, leaked oil everywhere. I took it off and went with the s/e a/c kit. After reading Joe Mintons article in American Rider where he did a comparison between air filters and proved that stock air box makes more torque in usable range I decided to put my stock air box back on to try.He was right bike makes more low end torque.
I had the same exact problem on my '07 FLHX. My bike has stage 1 download, screamin eagle one piece street legal mufflers, stock air box with kn filter element runs awesome. I had that pos kn kit, leaked oil everywhere. I took it off and went with the s/e a/c kit. After reading Joe Mintons article in American Rider where he did a comparison between air filters and proved that stock air box makes more torque in usable range I decided to put my stock air box back on to try.He was right bike makes more low end torque.
Anyone have any dyno info on that? Screw top end ... the speed limit is never higher than 75 in my area and I cruise 85 anyway. Torque is where it's at for me.
Road Captain
Joined: Jan 2006
Posts: 603
Likes: 14
From: AZ
RE: Stage 1 Problems
Snakum check out the April edition of American Rider, that's where the article is. Also another thing I noticed when I replaced the stock air box the motor seems quieter as I do not hear the intake noises. Bike runs great. I did notice that with the screamin eagle air cleaner kitmy bike would rev to red line quicker, but I feel more power on the low-mid range with the stock air box. I never rev past 4K rpm, so Isee no need to use the s/e kit as it probably makes morehp on top end, which I am not interested in.I just had the IDS installed and it smooths out the ride. It just made a great bike excellent. '07 FLHX
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