foxk56 Posted May 6, 2016 Share Posted May 6, 2016 @eraser8, no I didn't run it without the heat shield, I stuck it on right after drilling the holes Yeah I'm about 99% sure I'll never get an aftermarket exhaust. At this point it would just be for looks and that's not worth $400+ to me, especially considering it'd probably be too loud for my tastes Link to comment Share on other sites More sharing options...
eraser8 Posted May 6, 2016 Share Posted May 6, 2016 @eraser8 , no I didn't run it without the heat shield, I stuck it on right after drilling the holes Yeah I'm about 99% sure I'll never get an aftermarket exhaust. At this point it would just be for looks and that's not worth $400+ to me, especially considering it'd probably be too loud for my tastes I'm thinking exactly like you. I will not spend d many hundred buck just for the look Link to comment Share on other sites More sharing options...
bmwpowere36m3 Posted May 6, 2016 Share Posted May 6, 2016 and weight... not that its much (maybe a few pounds). Link to comment Share on other sites More sharing options...
topazsparrow Posted May 6, 2016 Share Posted May 6, 2016 and weight... not that its much (maybe a few pounds).Someone weight the stock exhaust in at 18 lbs or so. So, yea maybe saving 10 lbs. Link to comment Share on other sites More sharing options...
fxdbisam Posted May 19, 2016 Share Posted May 19, 2016 I just got my bike last week, I'm wanting some sound out of the bike but I'm not so sure about drilling holes. This bike was also my first "New" one. Could it damage the bike in some way? Such as sensors and what not? Link to comment Share on other sites More sharing options...
bmwpowere36m3 Posted May 19, 2016 Share Posted May 19, 2016 The holes themselves wont damage anything… Exhaust gases will being directed behind the muffler tip/heat-shield, which I'm not fond of. However the person drilling the holes can cause damage… unlikely, but anything is possible. The only sensor in the exhaust is the O2 sensor and that's up under the engine (so far away from where you're drilling). Link to comment Share on other sites More sharing options...
foxk56 Posted May 19, 2016 Share Posted May 19, 2016 @fxdbisam , the bike supposedly runs a few degrees cooler after the holes are drilled. I felt no performance difference at all. If you don't like the idea of the exterior holes check out my post here from page 2 of this thread where I propose cutting out a chunk of the final pipe, which I would theorize would be louder than multiple small exterior holes but would avoid the exterior holes Link to comment Share on other sites More sharing options...
foxk56 Posted May 19, 2016 Share Posted May 19, 2016 @fxdbisam by the way I didn't actually go this route, I did the hole drilling too and was very happy with the results. Opening the exhaust was just an option I was theorizing but decided against it because I thought it might be too loud for my tastes and it cost $60 from my local welder vs free holes with my drill Link to comment Share on other sites More sharing options...
topazsparrow Posted May 19, 2016 Share Posted May 19, 2016 Rather than opening it up, you could drill a large hole INSIDE the main pipe. This would allow a partial bypass of the last baffle (like the outer holes method) but not require you to perform surgery on the muffler. It's probably too deep to get a hole saw in there realistically, but I bet you could fine some long drill bits and work your way up in size pretty easy. Something like this would surely work: https://www.amazon.ca/Irwin-39108-2-Inch-18-Inch-Installer/dp/B00004YO6F Link to comment Share on other sites More sharing options...
foxk56 Posted May 19, 2016 Share Posted May 19, 2016 @topazsparrow I considered that option heavily but without buying something I didn't have a long drill bit to do it. Plus you have to abuse the drill and drill bit a little because you're significantly side-cutting, the pipe going into the can takes a really slow curve so there's no flat surface to really press into to drill the hole. I even tried using a long punch to a make a pilot mark of sorts and it barely made a dent. Link to comment Share on other sites More sharing options...
topazsparrow Posted June 6, 2016 Share Posted June 6, 2016 @topazsparrow I considered that option heavily but without buying something I didn't have a long drill bit to do it. Plus you have to abuse the drill and drill bit a little because you're significantly side-cutting, the pipe going into the can takes a really slow curve so there's no flat surface to really press into to drill the hole. I even tried using a long punch to a make a pilot mark of sorts and it barely made a dent. I just drilled mine today. It sounds a little better - not louder, but growlier from idle to 4k, then it sounds just like before. I tried using a 3/4 inch hole saw first (you'll see the marks in the video) but quickly found out there's a slight bend to the pipe before the "main" part of the muffler. I just grabbed the next size down hole saw, removed the drill piece from the chuck and then grabbed a 6 inch long 1/2inch fine thread bold and slid it in. Took a little while with some gently pressure and eventually I was through. I left the piece attached (shaped like a bunny ear sort of inside) and bent it out to open the hole without worrying about loose pieces in the muffler. Link to comment Share on other sites More sharing options...
Premium Member Jeckler Posted June 6, 2016 Premium Member Share Posted June 6, 2016 The last few posts reminded me of this old joke.... THE GYNECOLOGIST WHO BECAME A MECHANIC A gynecologist had become fed up with malpractice insurance and HMO paperwork, and was burned out. Hoping to try another career where skillful hands would be beneficial, he decided to become a mechanic. He went to the local technical college, signed up for evening classes, attended diligently, and learned all he could. When the time of the practical exam approached, the gynecologist prepared carefully for weeks, and completed the exam with tremendous skill. When the results came back, he was surprised to find that he had obtained a score of 150%. Fearing an error, he called the Instructor, saying, “I don’t want to appear ungrateful for such an outstanding result, but I wonder if there is an error in the grade?” “The instructor said, “During the exam, you took the engine apart perfectly, which was worth 50% of the total mark. You put the engine back together again perfectly, which is also worth 50% of the mark.” After a pause, the instructor added, “I gave you an extra 50% because you did it all through the muffler, which I’ve never seen done in my entire career”. - Andy Link to comment Share on other sites More sharing options...
Redstang4 Posted June 6, 2016 Share Posted June 6, 2016 @topazsparrow I considered that option heavily but without buying something I didn't have a long drill bit to do it. Plus you have to abuse the drill and drill bit a little because you're significantly side-cutting, the pipe going into the can takes a really slow curve so there's no flat surface to really press into to drill the hole. I even tried using a long punch to a make a pilot mark of sorts and it barely made a dent.I just drilled mine today. It sounds a little better - not louder, but growlier from idle to 4k, then it sounds just like before. I tried using a 3/4 inch hole saw first (you'll see the marks in the video) but quickly found out there's a slight bend to the pipe before the "main" part of the muffler. I just grabbed the next size down hole saw, removed the drill piece from the chuck and then grabbed a 6 inch long 1/2inch fine thread bold and slid it in. Took a little while with some gently pressure and eventually I was through. I left the piece attached (shaped like a bunny ear sort of inside) and bent it out to open the hole without worrying about loose pieces in the muffler. This Video I look forward to! Been really thinking about doing this, you may just push me over the edge @topazsparrow Link to comment Share on other sites More sharing options...
shuarez Posted July 20, 2016 Share Posted July 20, 2016 Guys posting two videos here: First I drilled a hole with a 1/2 inch drill bit, the sound was ok but not loud enough Than I decided to drill holes on the outside, started with 4 holes, than drilled a 5th one, sounds so much better IMO. Link to comment Share on other sites More sharing options...
wesleyc6 Posted July 28, 2016 Share Posted July 28, 2016 Just drilled 5 holes. Love it! Link to comment Share on other sites More sharing options...
aaron Posted July 31, 2016 Share Posted July 31, 2016 I just drilled 6 3/8 holes today. It sounds "alright." 6 holes gets it pretty loud. Definitely doesn't sound as nice as an aftermarket system but it will get me through until I can afford one. I am planning on just getting the M4 so I didn't mind drilling the stocker. I have to chop the muffler off for the M4 anyways. Link to comment Share on other sites More sharing options...
axelxl3mm Posted August 1, 2016 Share Posted August 1, 2016 No downsides to it at all I love the fact that I came across this cheap mod. Link to comment Share on other sites More sharing options...
mattypfunk Posted August 4, 2016 Share Posted August 4, 2016 I drilled holes in my old bike's (Yamaha Raider) stock exhaust and it didn't sound bad at all. If you drill directly into the headers it might, but if drill into the "muffler" area as shown in the video above it will be fine. It improved the sound of my Raider's exhaust for sure, though it still very obviously had a "stock" sound. With such small changes you won't notice a difference at all in performance/fuel economy. And many people think fart cans on civics sound good too. Bwhahaha so true! Link to comment Share on other sites More sharing options...
aaron Posted August 4, 2016 Share Posted August 4, 2016 That's how I would describe the sound. It's very "fart can like." I wouldn't do it unless you are planning to change out your exhaust anyway. Link to comment Share on other sites More sharing options...
yamahaha Posted August 5, 2016 Share Posted August 5, 2016 After riding a R3 for the last week, I can see why people get frustrated with the 07 sound. There is nothing awe inspiring about the stock sound at all. The R3 sounds like a banshee wailing with the stock pipe. Link to comment Share on other sites More sharing options...
n3ren Posted August 16, 2016 Share Posted August 16, 2016 After riding a R3 for the last week, I can see why people get frustrated with the 07 sound. There is nothing awe inspiring about the stock sound at all. The R3 sounds like a banshee wailing with the stock pipe. I did it just to drown out the sound of the chain. Tension and alignment are perfect...you should hear the damn thing ZING from the rear sprocket when I run it on it's stand. I have a hard time justifying spending 1/6 of the total purchase price of the bike on a damn exhaust set up. Maybe it'll wear out the flimsy cover in a year or two and motivate me to buy an aftermarket setup...maybe they'll come down in price by then when a new gen is introduced as well. Link to comment Share on other sites More sharing options...
robborboy Posted August 16, 2016 Share Posted August 16, 2016 Naah. As much as I would like it to have more growl I also like steath mode and the much lower emissions. Link to comment Share on other sites More sharing options...
sgtdrew Posted August 18, 2016 Share Posted August 18, 2016 Yes, i drilled 6x3/8" holes. Much improved growl at idle and low RPMs. For the most part its still just as quiet at cruising speeds. Its louder but doesnt sound as good as aftermarket pipes. 2016 FZ07 - LOVING IT!! 2003 R6 - SOLD 2006 FZ6 - SOLD Link to comment Share on other sites More sharing options...
robborboy Posted August 19, 2016 Share Posted August 19, 2016 Yes, i drilled 6x3/8" holes. Much improved growl at idle and low RPMs. For the most part its still just as quiet at cruising speeds. Its louder but doesnt sound as good as aftermarket pipes. I wonder if drilling the actual pipe that comes from the converter or chopping off all together changed the sound much while still allowing proper emissions. Link to comment Share on other sites More sharing options...
n3ren Posted August 20, 2016 Share Posted August 20, 2016 Yes, i drilled 6x3/8" holes. Much improved growl at idle and low RPMs. For the most part its still just as quiet at cruising speeds. Its louder but doesnt sound as good as aftermarket pipes.I wonder if drilling the actual pipe that comes from the converter or chopping off all together changed the sound much while still allowing proper emissions.It's been done before. The guys who tried drilling inside the pipe ended up drilling the 6 - 3/8" holes anyway because it made little difference. Chopping off altogether? Like straight piping it?? There's no need to wonder if straight piping it would change the sound or allowed proper emissions. lol Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.