Stage II. question...
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Road Warrior
Joined: Jul 2012
Posts: 1,521
Likes: 185
From: Ft Myers FL
Stage II. question...
Can I skip stage I, and go directly to a torque cam change Stage II.....i am not interested in new mufflers or air filter..changes.
Mostly 2-up riding and torque cam would help.
Mostly 2-up riding and torque cam would help.
Road Warrior
Joined: Jul 2009
Posts: 1,408
Likes: 1,808
From: pa
I think the stock pipe is a pretty good flowing pipe even with the cat. The biggest gain in decat was heat which is why I took it out and you gain some hp where its made in the hi rpm area. But if you're good with stock sound I'd do same as Max bet you'll like it
Seasoned HDF Member
Joined: Jan 2008
Posts: 13,679
Likes: 11,470
From: State of Confusion
assuming you're using the SEPST Stage II ECM calibration, not sure it would hurt anything..and if doesn't seem right for whatever reasons you can just bolt on one at a time or both SE intake and slip-ons at any time yourself without having to do anything else..keep us posted
Intermediate
Joined: Mar 2009
Posts: 34
Likes: 0
I did stage 2 torque cam, high flow air filter, plus Power Vision tune. Stock pipes.
93hp and 108 torque. Runs great.
93hp and 108 torque. Runs great.
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Road Master
Joined: Feb 2014
Posts: 1,240
Likes: 170
From: Wisconsin
I have stage 2,SEPST , hi flo air filter and Stock pipes. If You search utube You will find an M8 dyno from an Illinois dealer. When He changes stock to Screaming Eagle slip-ons, there is no horse power change. Besides the stock pipes are really light compared to most slip-ons. I had Street Cannons until the left baffle came loose and rattled. I exchanged and sold the new ones on ebay. Ran stock ever since.
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Road Captain
Joined: Sep 2012
Posts: 609
Likes: 159
From: Allover
447 Cam
Keep the stock filter cover,switch up to the Screaming air flter insert.Even lifts the sound with a definite power gain!Even without the Cam.No sense to leave the small internal baffle pipe.For zero cost of removing the mufflers and grinding the baffle loose 2" inside the outlet end.Do one step at a time and see the difference yourself,then throw in the cam for the best value for the money upgrade, with a tangible result!
Leave the Cat,it has twice the capacity of the old Twincam.
Leave the Cat,it has twice the capacity of the old Twincam.
