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Built4Speeed
12-22-2006, 03:51 PM
I decided to fabricate an exhaust and see how it turned out. I went to the nearest auto parts place, bought a collector/adaptor that went into a smaller turndown pipe to make sure i keep some back pressure and not F up the engine. It ran me about $7.49 not including the high temp paint I used. The note turned out extremely deep and EXTREMELY loud. Heres a little clip, but it really doesnt do it justice. I passed my friends house who lives next to the interstate, he could here me coming about a mile out. Well anyway here ya go, let me know what you think.

http://media.putfile.com/strait-pipes-gsx600f

loudnlow7484
12-22-2006, 06:18 PM
That's ungodly loud. I knew a guy that used to run an open header...........

at the track.

It kinda looks neat, though. If you could cram a baffle in there, (they do make baffles to stick in a straight pipe) I might keep it like that.

suzukisportrider2004
12-22-2006, 06:34 PM
try a supertrapp????

Black_peter
12-22-2006, 06:52 PM
putfile makes my 'puter crash...

madkatana
12-22-2006, 06:57 PM
Thats crazy, wild...

KatanaSoldier
12-22-2006, 09:27 PM
I love the sound of that. Might have to switch from my
D & D to that! That thing growls!!! 7 bucks, wow!

I have to compete with all the Harley riders up here!

rugby01
12-22-2006, 09:43 PM
Nice job I think it sounds better than my D & D.

KatanaSoldier
12-22-2006, 09:53 PM
It looks better and is less weight too! Post the exact how to directions, LoL!

grizzy2005
12-22-2006, 11:12 PM
I did something similar last week, only I went to the harley shop and bought a pair of 4" baffles, bolted one in (only one fit without modification) and this is the result: (I think this requires quicktime, if someone can convert it i'll rehost:

http://moebay.com/dan/katpipe.mp4

dodgeman
12-22-2006, 11:41 PM
is there any engine mods that should be done before I try this, dont want to mess up my bike. I must say that is bad azz. :shootdw:

gsxrluver
12-22-2006, 11:56 PM
i think they both sound good...did you notice a hp differance and did you need to rejet????

suzukisportrider2004
12-23-2006, 12:19 AM
i thought i heard thats bad for the valves.........

StevieB
12-23-2006, 12:23 AM
I did something similar last week, only I went to the harley shop and bought a pair of 4" baffles, bolted one in (only one fit without modification) and this is the result: (I think this requires quicktime, if someone can convert it i'll rehost:

http://moebay.com/dan/katpipe.mp4

Looks like it would have a detrimental effect on ground clearance.

And yeah, I do believe such a shorty runs the risk of valves cooling too fast after shut-down.

Of course, I should hate that stuff, given my much-ballihooed hatred of D&D's. Funny, somehow I don't hate it that much, maybe because I don't have to live with it, like I did with that damn D&D on my now-sold Kat 750.

mystahagy
12-23-2006, 01:00 AM
I like the idea, but would DEFINITELY go with some internal baffles. I once heard my exhaust straight out of the collecter, it was beyond loud, and not in a good way. These here might just be what you need, and they still keep the project cheap.

http://www.jcwhitney.com/autoparts/Product/tf-Browse/s-10101/Pr-p_Product.CATENTRY_ID:2006472/p-2006472/N-111+10211+600014672/c-10111

and

http://www.jcwhitney.com/autoparts/Product/tf-Browse/s-10101/Pr-p_Product.CATENTRY_ID:2006266/p-2006266/N-111+10211+600014672/c-10111

Black_peter
12-23-2006, 11:07 AM
Can someone post a screen shot?
I'm curious what this looks like.

mystahagy
12-23-2006, 12:50 PM
Finally watched the video, yeah someone get a screenshot because it looks great. However....whoa man, internal baffles please. :lol:

suzukisportrider2004
12-23-2006, 12:58 PM
does look nice!

madkatana
12-23-2006, 02:28 PM
Could just cut off the stock muffler and weld on a glasspack...wonder what that would sound like...sorry just thought it was funny to cut off the muffler. I can already hear the sirens now due to the police chase...

FloridaKat
12-23-2006, 03:28 PM
Looks like a good way to tank an engine, but I'm no expert. If it were me, I'd seriously consider how much back pressure you really need before keeping that thing on for too long.

Built4Speeed
12-24-2006, 09:17 AM
i think they both sound good...did you notice a hp differance and did you need to rejet????

yea definate hp increase. i would guestimate 8-10 easy....

as far as the valves go, thats why i purposely used a smaller collector and turndown to ensure some back pressure.... but yea ill prolly add more for insurance. As far as ground clearance, I can angle the turndown any way I want so ground clearance is no issure whatsoever.

I stayed with stock heads so rejetting wouldnt be an issue, although im sure it would make even more of a difference.

Im planning on fabricating a few more here soon, just to play with the sound length look and soforth. Ill keep you guys posted.....

mystahagy
12-24-2006, 11:24 AM
You plan any sort of baffling?

Built4Speeed
12-24-2006, 05:52 PM
You plan any sort of baffling?

yes. i wanna try a bunch of different things....

The CyberPoet
12-25-2006, 12:44 AM
The real risk of dropping the back pressure (aside from the attention of the police & going deaf in the process) is running the mixture lean; as long as the mix is richened up to compensate, everything should be OK. If the mixture isn't richened up, the temp at the exhaust valves can easily go too hot and burn valves. A minute or two on an exhaust gas analysis machine (even one at an automotive garage) should be able to tell you the status on the mixture.

Cheers,
=-= The CyberPoet

md86
12-25-2006, 12:48 AM
Wait , gained "8-10hp EASY" with no rejet ? :thinking ............

mystahagy
12-25-2006, 01:03 AM
Wait , gained "8-10hp EASY" with no rejet ? :thinking ............

+1 :scratch

steves
12-25-2006, 08:37 PM
Can someone post a screen shot?
I'm curious what this looks like.

Don't say I never got you anything for xmas....


http://img402.imageshack.us/img402/736/ssdq4.th.jpg (http://img402.imageshack.us/my.php?image=ssdq4.jpg)

Built4Speeed
12-26-2006, 01:29 PM
i noticed a big difference in power, as one normally would once they trade out the stock muffler/silencer. im sure a rejet would make a dramatic difference but im trying to stay away from that for now.

oh and thanks for the advice cyber, im going to look into that.... :-)

Astro4x4
12-28-2006, 12:51 AM
Hey man, have you seen these? MCM Mirage (http://www.mcmcustom.com/MCM%20Mirage.htm)

Those are for Yammies, but same idea.

grizzy2005
12-28-2006, 01:50 AM
Thats where I got the idea, but mine was cheaper (less than $20) and still works great. Being a poor college student has its drawbacks, but sometimes it works out :-P

Built4Speeed
12-28-2006, 04:48 AM
i bet that MCM would bolt right onto a kat, all you need is an adaptor that would run bout 3 bucks at and auto parts place... its not like it needs much room or a bracket to line up with... but yea its pretty much the same thing i did, only chromed and with a baffle

paperairplane
12-28-2006, 09:43 AM
I think you may be mistaking "sounds like more hp" with "makes more hp"....

I can't believe this doesn't pop and backfire on decelleration like a SOB with the stock jetting.

Much too raspy for me.. there's no tone, just loudness.

Black_peter
12-28-2006, 10:12 AM
Can someone post a screen shot?
I'm curious what this looks like.

Don't say I never got you anything for xmas....
:lol:
Deal!!

Looks cute..

BlackKatnWV
12-28-2006, 06:51 PM
Sounds like my gutted yoshi I had on my 98 gsxr600

Built4Speeed
12-29-2006, 12:11 AM
think you may be mistaking "sounds like more hp" with "makes more hp"....

I can't believe this doesn't pop and backfire on decelleration like a SOB with the stock jetting.

Much too raspy for me.. there's no tone, just loudness.

in the next day or to i should have a vid of a pass on the interstate..... trust me it sounds wayyyy better when it hits those high rpms, no rasp, plenty of tone

Robgsxf750
10-15-2008, 05:05 PM
That sound is sweet.

Enjay386
10-15-2008, 05:59 PM
That is insanely loud. I love it. Good work.

skidMarkNZ
10-15-2008, 06:18 PM
i thought i heard thats bad for the valves.........


it is if you dont downsize the tip, if you just yank our muffler off yes you will **** them, provided you have back pressure there is no issue

Psycho1
10-15-2008, 06:53 PM
Wow 12-28-2006,
"Holy deadthread Batman!!!"
lol

Psycho1
10-15-2008, 06:53 PM
:smt021

GytRDunKat
10-15-2008, 06:55 PM
Dead thread :-)

i think we've said that :-)

Katpilot36
10-15-2008, 09:05 PM
wow 2006

Robgsxf750
10-15-2008, 09:59 PM
Didn't even see the last post date. Noob mistake. :downhatch

Thinking of making one of these just for the sake of it.

Is there a way to tell if you don't have enough back pressure such as popping or backfiring?

GSXfs600
10-15-2008, 10:14 PM
I decided to fabricate an exhaust and see how it turned out. I went to the nearest auto parts place, bought a collector/adaptor that went into a smaller turndown pipe to make sure i keep some back pressure and not F up the engine. It ran me about $7.49 not including the high temp paint I used. The note turned out extremely deep and EXTREMELY loud. Heres a little clip, but it really doesnt do it justice. I passed my friends house who lives next to the interstate, he could here me coming about a mile out. Well anyway here ya go, let me know what you think.

http://media.putfile.com/strait-pipes-gsx600f

Very nice! could you move in next door so I can try out one of my new guns?

skidMarkNZ
10-17-2008, 04:22 AM
Very nice! could you move in next door so I can try out one of my new guns?


Yeah i was thinking basically that...

"f**k my neighbours would loathe me"

Robgsxf750
10-17-2008, 04:37 AM
What, the ones that sing along to country and western until 3am most weekends........boohoo for them and their interrupted morning sleep-in.

jimpennjr
10-17-2008, 11:53 AM
Rob if you do this, make a how-to with lots of pics. I might just have to follow in your footsteps. Plus, I'm bored with my quiet stock exhaust.

RandyRocks77
10-18-2008, 12:00 AM
Nice... I like it.. loud and cheap

dragoncutlery
11-04-2008, 11:57 PM
hows this for a question any one know a good way to quiet up a yoshy?

scottynoface
11-05-2008, 02:27 AM
If a Yoshimura is too loud you need to get earplugs. Yoshi's are among the quietest pipes out there if they aren't opened up. Now, rip some baffling out and it makes a whole world of difference.

Sasquatch
11-05-2008, 04:50 AM
You know, most places have a noise ordinance. And yes, you CAN get a ticket for too loud pipes.

That sounds just obnoxious...period.

XKillerEliteX
11-05-2008, 09:03 AM
is there any engine mods that should be done before I try this, dont want to mess up my bike. I must say that is bad azz. :shootdw:

:dito: I was going to do that but I went w/ a Yoshi instaed for that reason

eclipsespeed_1986
11-05-2008, 11:45 AM
Damn that things loud

whitecl0ver
11-05-2008, 11:48 AM
i cant get it too work