Cat less factory header
Tourer
Joined: Mar 2015
Posts: 348
Likes: 54
From: Big Rock Va.24603
I didn't take mine off just the slip on and saddle bag hammer and long chisel bought at Lowe's and paddle bit about 16in long also at Lowe's.
Tourer
Joined: Nov 2016
Posts: 467
Likes: 154
From: New Mexico
Looks like blocking off the contorted pipe that leads to the left muffler would be a perfect low cost option for a 2 into 1 set up. Drill out the cat and you are good to go. You only need one can if you want it louder. I'd give it a try with the stock right muffler first as the sound deadening Cat would be removed.
Last edited by Another Old Timer; Feb 15, 2017 at 08:20 AM.
Thread Starter
|
Road Master
Joined: Jan 2017
Posts: 1,169
Likes: 324
From: slinger wi
replacing it
Seasoned HDF Member
Joined: Sep 2008
Posts: 14,156
Likes: 11,244
From: San Diego, CA
These changes are different from just removing the CAT. From all I've read, these CATS don't restrict as much as people think. The biggest benefit of removing them is the heat...
When I had a stage II on my '12 Limited; SE A/C, SE cams, stock head pipe with CAT, and high-flow SE mufflers. I talked with Fuelmoto about getting a tune for it. I had a powervision from them. I also mentioned that in a few more months I would have the money for their head pipe... I was told then, that they would send me a tune, and when I put on their head pipe, just run a couple auto tunes. The tune would be the same, with or without the CAT. He mentioned the CAT doesn't restrict too much...
FWIW...
Stellar HDF Member
Joined: Sep 2009
Posts: 2,114
Likes: 666
The new M8 cats are less restriction than the previous cat. HD has increased flow by making it bigger.
They also did a bang up job of relocating the cat and rear headpipe further away from the rider and passenger. So cat heat is no longer an issue.
Bob
They also did a bang up job of relocating the cat and rear headpipe further away from the rider and passenger. So cat heat is no longer an issue.
Bob
Banned
Joined: Feb 2014
Posts: 277
Likes: 48
From: Hometown
Your statement about heat no longer being an issue is inaccurate. Is it better, somewhat, but it is still clearly an issue. Another benifit of the Fuel Moto 2-1-2 headpipe. I need to get me one.
Last edited by hikervt; Feb 16, 2017 at 11:59 AM.
Stellar HDF Member
Joined: Sep 2009
Posts: 2,114
Likes: 666
I live in California and have over 5k on my RG since Sept and can say without reservation the heat from these engines and exhaust is night and day different (cooler) than my TC ever was.
Just my observation,
Bob
Just my observation,
Bob
Seasoned HDF Member
Joined: Jan 2008
Posts: 13,672
Likes: 11,459
From: State of Confusion
it's better from my September experience so far...but can't change the fact your are basically sitting on an engine..so gotta' keep things in proper perspective
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Cruiser
Joined: Mar 2016
Posts: 163
Likes: 13
From: SW Florida
I've done this on a Jap bike a while ago. No welding, use concrete drills bits long enough 5/16" drilled a round pattern and pulled out the loose piece with long needle nose. Then with long flat bladed screw driver peel off the cat that's stuck to the wall and use a shop vacuum to remove small particles before starting engine.
Stage II
Joined: Mar 2017
Posts: 2
Likes: 0
From: BRAZIL
Hey Folks,
I decated my factory header yestasrday.
Did it with a 1.3/16(30mm) x 16in (400mm) paddle bit,and a home vacuum cleaner with a long hose to suck the debries from inside the pipes.
Took me about an hour to do it, piece of cake.
I'am still running the stock mufflers and in idle does not make much difference, but when you wrist the throttle the sound goes deeper.
For me it sounds good for now and way better than with the cat, I'm waiting for the VH OS450 to put in and let the apocalypse horns to scream loud
Regards!
I decated my factory header yestasrday.
Did it with a 1.3/16(30mm) x 16in (400mm) paddle bit,and a home vacuum cleaner with a long hose to suck the debries from inside the pipes.
Took me about an hour to do it, piece of cake.
I'am still running the stock mufflers and in idle does not make much difference, but when you wrist the throttle the sound goes deeper.
For me it sounds good for now and way better than with the cat, I'm waiting for the VH OS450 to put in and let the apocalypse horns to scream loud
Regards!