Is there a disadvantage of it being very tight?
R18 TC with drilled out exhaust baffles video
- Thread starter moleculo
- Start date
moleculo
Active member
I measured the inside diameter of the muffler to determine the hole saw size. I recall that i thought 1.5" was slightly too big and would hit the side of the outside baffle. But take your own measurement and let us know what you think
Gr8adv
Well-known member
Do t ever show me a pic of you in tennis shoes again... lol
Just to report back. Couldn't find any 1.5" but I did find a 1-3/8ths. Its tight but it fits... have to wiggle it around a bit but it works.
moleculo
Active member
What do you think about the sound of the revised exhaust?
300 more miles and I let you know lol I did a test fit of the drill bit only. waiting for my 600 mile service then I will drill.
moleculo
Active member
I didn't even wait for the 600 mile service, lol.
Brownie
New member
Drilled mine out today. Happy with the results. Definitely made a solid improvement without being the over top. If anyone else is thinking of doing it don't waste time trying to hook out the disk. Simply take each exhaust off and give it a shake. They came straight out and ensured all the swarf did as well.
So all you had to do is drill a 1 1/4 hole and thats it (get the metal out too) I think I will have to try on my 2022 R18 TC
moleculo
Active member
Yep
Brownie
New member
After I drilled out the baffles I recommend taking each exhaust to clean out the dwarf etc. I found it to be quicker and more effective then trying to scrape it out.
moleculo
Active member
I did not take the mufflers off, but I did ensure that I got the drilled out metal disk out. When my Freedom Exhaust mufflers finally arrived I took the stock mufflers and dumped them over to see if any metal shards were still kicking around in there from the drilling process. There wasn't any, which means it all blew out from the exhaust pressure.
Brownie
New member
That’s great. How do you find the freedom exhaust? A better note?
moleculo
Active member
Louder, more refined throaty sound. I initially ran the with the baffles in, which is a nice sound and louder than drilled out stock baffles. Now I run the Freedom with no baffles and it is loud but not obnoxious and really nice sound. While cruising, it sounds to me like a Sousaphone hitting the low notes.
Done!
Ulrich
Well-known member
Sounds great!
Specially considering the cost to get it!!
Thanks!
Scott Semone
Well-known member
Maybe go with a stepper unibit vs a hole saw; the hole saw uses the pilot bit to prevent the hole saw from jumping around when cutting.
I would think there isn't a purchase point for the pilot drill bit at the center of the exhaust output?
I'm sure that will work nicely too.