Drilling the stock exhaust - quick poll... - Yamaha FZ6 Forums - International FZ6 Motorcycle Community Forum

jamesmorgan · 08-10-2008, 03:13 AM

OK - so after my 8 mins headlight Mod I am thinking of an 8 minute exhaust mod - like getting a 1/2 inch drill bit and drilling two holes in the exhaust (and I wont get in to any arguments about whether I should have soldered the whole thing up this time).

Whats the general feeling on this one? Reading the old threads it seems people are pretty split down the middle on this one............ but its about £400 and 3 hours cheaper/quicker than the obvious alternative.

Thoughts?

Tebster _ fz6 · 08-10-2008, 03:33 AM

Personally I wouldnt bother, it would probably make it louder but cant see that there would be any performance gains, and once done if too loud theres nothing that you can do to make it quieter again as the outlets are too small for db killers.

**reiobard** · 08-10-2008, 05:02 AM

i think i might try this, but i am going to start with a small hole and then stop drilling when i get to the volume that i want, one big hole is scary

pedwards89 · 08-10-2008, 05:18 AM

I was an engineer in a former life. And as is the way with engineers, I'm a bit of a belt & braces bloke (others would say a bit anal). The way I would go about it, would be to buy a scrap exhaust of e-bay - there's plenty about for not too much money - the as Reio suggests start small & work your way up in size. If you completely stuff it up. put the old exhaust back on.

**grommit** · 08-10-2008, 08:20 AM

Ultimately it is you decision and I suppose it depends why you want to drill the holes. Personally I like the look of the stock one but it does sound a bit refined.

As another former engineer (can you be a former engineer

) I agree with pedwards89, but you could just try it and if you make a mess buy a second hand or a aftermarket one later.

jsp · 08-10-2008, 09:33 AM

I did that in the past. In the beggining I liked a lot but a few months later I felt forced to have a decent exhaust...

Think well about you are about to do because there's no way back.
If you don't like it or get bored of it, then you are screwed!

oldfast007 · 08-10-2008, 11:14 AM

It' kinda like getting a tattoo, are sure you want to

**FZ6inNH** · 08-10-2008, 11:24 AM

I'd be inclined to do it but rather different. I'd like to open the can and redesign the innards for a quicker flow then increase the diameter of the two exhaust ports. But, I'd only do this is I had another one to put back to stock, or, full funding to just go get the new titanium Scorpions with the cool cones!

stumbles06 · 08-10-2008, 05:13 PM

One of the Aussie's here (Wolfman) has had a "de-baffle" done, cost a couple of hundred, but sounds pretty good. From what I saw, they removed the small outlet pipe and attached baffle, and also drilled small holes in the plate inside the can.

You can see the small holes in some of the photo's he took.
http://www.fz6-forum.com/forum/austr...y-mates-5.html (ha, chillin with my mates)

Sounds much better than the stock can, but I think he's going to get some Two Bro's now.

Hope that helps.

goran21220 · 08-10-2008, 06:14 PM

Anybody here actually did this mod?? Maybe a comment about the sound?

08-10-2008, 03:13 AM	#1 (permalink)
jamesmorgan Junior Member Join Date: Aug 2008 Location: London Bike: FZ6 S2 (08) Posts: 30 Rep Power: 2 Member #4242	Drilling the stock exhaust - quick poll... OK - so after my 8 mins headlight Mod I am thinking of an 8 minute exhaust mod - like getting a 1/2 inch drill bit and drilling two holes in the exhaust (and I wont get in to any arguments about whether I should have soldered the whole thing up this time). Whats the general feeling on this one? Reading the old threads it seems people are pretty split down the middle on this one............ but its about £400 and 3 hours cheaper/quicker than the obvious alternative. Thoughts? __________________ Bikes so far.... FS1E (1977), RS100 (Yamaha), CB200, CB400/4 (x2), CB900, CB550, CBR600 (original version - 1987), GSXR750, ZXR750, ZXR400 (x2), R1 (05 underseat Ex), and finally an FZ6 (and there was a scooter in there somewhere when I was REALLY broke)

08-10-2008, 03:33 AM	#2 (permalink)
Tebster _ fz6 Junior Member Join Date: Jun 2008 Location: Walsall, UK Bike: FZ6 Fazer Posts: 50 Rep Power: 3 Member #3147	Re: Drilling the stock exhaust - quick poll... Personally I wouldnt bother, it would probably make it louder but cant see that there would be any performance gains, and once done if too loud theres nothing that you can do to make it quieter again as the outlets are too small for db killers.

08-10-2008, 05:02 AM	#3 (permalink)
reiobard Postaholic Join Date: Nov 2007 Location: Concord, NH Bike: 2007 FZ6 (The Faster Blue) Posts: 5,369 Rep Power: 72 Member #991	Re: Drilling the stock exhaust - quick poll... i think i might try this, but i am going to start with a small hole and then stop drilling when i get to the volume that i want, one big hole is scary

08-10-2008, 05:18 AM	#4 (permalink)
pedwards89 Super Member Join Date: May 2007 Location: Leamington Spa, Warwickshire, UK Bike: Yamaha FZ6-SA Posts: 601 Rep Power: 12 Member #125	Re: Drilling the stock exhaust - quick poll... I was an engineer in a former life. And as is the way with engineers, I'm a bit of a belt & braces bloke (others would say a bit anal). The way I would go about it, would be to buy a scrap exhaust of e-bay - there's plenty about for not too much money - the as Reio suggests start small & work your way up in size. If you completely stuff it up. put the old exhaust back on. __________________ Phil "Dave's not here." '07 FZ6 SA in super cool *Gunmetal*

08-10-2008, 08:20 AM	#5 (permalink)
grommit Moderator Join Date: Aug 2007 Location: Birmingham, UK Bike: FZ6 S2 Posts: 1,515 Rep Power: 32 Member #488	Re: Drilling the stock exhaust - quick poll... Ultimately it is you decision and I suppose it depends why you want to drill the holes. Personally I like the look of the stock one but it does sound a bit refined. As another former engineer (can you be a former engineer ) I agree with pedwards89, but you could just try it and if you make a mess buy a second hand or a aftermarket one later. __________________ Emperor Dalek: "Daleks: WE SHALL RETURN! WE SHALL RETURN! WE SHALL RETURN!"

08-10-2008, 09:33 AM	#6 (permalink)
jsp Easyrider Join Date: May 2008 Location: Portugal Bike: FZ6 S2 Posts: 114 Rep Power: 4 Member #2698	Re: Drilling the stock exhaust - quick poll... I did that in the past. In the beggining I liked a lot but a few months later I felt forced to have a decent exhaust... Think well about you are about to do because there's no way back. If you don't like it or get bored of it, then you are screwed! __________________ *Nemo Nascitur Sapiens...*

08-10-2008, 11:14 AM	#7 (permalink)
oldfast007 "Thread Killer" Join Date: May 2008 Location: NH Bike: Fastest Red 06' Posts: 221 Rep Power: 5 Member #2741	Re: Drilling the stock exhaust - quick poll... It' kinda like getting a tattoo, are sure you want to

08-10-2008, 11:24 AM	#8 (permalink)
FZ6inNH Moderator w/ Twisted Fate Join Date: Mar 2007 Location: New Hampshire Bike: 2008 FZ6 Cobalt Blue Posts: 3,151 Rep Power: 51 Member #18	Re: Drilling the stock exhaust - quick poll... I'd be inclined to do it but rather different. I'd like to open the can and redesign the innards for a quicker flow then increase the diameter of the two exhaust ports. But, I'd only do this is I had another one to put back to stock, or, full funding to just go get the new titanium Scorpions with the cool cones! __________________ -={FZ6inNH}=- . . Member #9 . . 2008 Cobalt Blue FZ6 -My Rider Resume Mods: Yamaha Lower Cowl, Racetech Springs w/15w oil, FAZR6 F.E. Kit, Puig Smoke Racing Screen, Tank Camera mount, Cortech Sport saddle and tail bags, dual headlight mod, Shogun Sliders, Yamaha Comfort Seat, Mild Airbox Mod, De-Stickered, and Custom Carbon Fiber SwingArm Decals

08-10-2008, 05:13 PM	#9 (permalink)
stumbles06 Junior Member Join Date: Apr 2008 Location: Adelaide, Australia Bike: 2004 FZ6S Posts: 707 Rep Power: 12 Member #1886	Re: Drilling the stock exhaust - quick poll... One of the Aussie's here (Wolfman) has had a "de-baffle" done, cost a couple of hundred, but sounds pretty good. From what I saw, they removed the small outlet pipe and attached baffle, and also drilled small holes in the plate inside the can. You can see the small holes in some of the photo's he took. http://www.fz6-forum.com/forum/austr...y-mates-5.html (ha, chillin with my mates) Sounds much better than the stock can, but I think he's going to get some Two Bro's now. Hope that helps.

08-10-2008, 06:14 PM	#10 (permalink)
goran21220 Junior Member Join Date: Feb 2008 Location: memphis Bike: 2008 yamaha fz6 Posts: 27 Rep Power: 4 Member #1447	Re: Drilling the stock exhaust - quick poll... Anybody here actually did this mod?? Maybe a comment about the sound?

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