Author Topic: WTB Exhaust system - But not Mac (Read 2682 times)

seven · « **on:** August 21, 2008, 04:22:54 AM »

Can anyone point me in direction of a decent set of 4 into 1 headers for my 78K. I don't like the Mac systems because there seems to be way too much gap between the frame and the pipes where run underneath.

Thanks $:-\$

KB02 · « **Reply #1 on:** August 21, 2008, 04:59:05 AM »

Yamiya used to have a nice 4 into 1, but I can't seem to find it on their website anymore... Hmmm...

Go with a Kerker.

cb650 bobber · « **Reply #2 on:** August 21, 2008, 05:40:02 AM »

how do you tell if it is a mac or kerker

dusterdude · « **Reply #3 on:** August 21, 2008, 05:57:04 AM »

um,by the tag on the pipe?

timdhawk · « **Reply #4 on:** August 21, 2008, 06:21:07 AM »

Quote from: cb650 bobber on August 21, 2008, 05:40:02 AM

how do you tell if it is a mac or kerker

and price!!!!

rbmgf7 · « **Reply #5 on:** August 21, 2008, 08:32:58 AM »

so are the few kerker sets that are still being sold NOS or are they still being made? i know supertrapp owns the kerker name but the only place i can find kerker is at dynoman.

edit. nevermind. i see the kerker listed in the supertrapp catalogue. wowwa woowee! almost $660!

george · « **Reply #6 on:** August 21, 2008, 08:58:36 AM »

I've been real pleased with this Mac , I've always had Kerker but $$ got in the way. I'm thinking of ditching the can and using an auto tail pipe that looks cleaner. The Mac has a very unique sound with the internal baffle removed. Either you love the sound or hate it, it's much higher pitch than the low rumble of no baffle.

seven · « **Reply #7 on:** August 22, 2008, 05:51:44 AM »

yeah, your Mac headers seem to hug the lower frame pretty closely.

I have just been going by the shots off their catalogue (see pic) there is a fair bit of daylight showing.

Maybe they have revised the design since the photo was taken or something.

Big price difference between the Macs and Kerkers though ($300).

thanks

george · « **Reply #8 on:** August 22, 2008, 06:35:34 AM »

Hey Seven,
I actually paid less than $300. for the black/chrome set. I too had concerns of fitment but have been very pleased all around. I actually have 2 baffles, one stock that is very quiet and restrictive and one I cut everything off of except the end that scews into the can. I really dont care for the chrome can and am thinking about removing / replacing it with an auto type chrome tailpipe extension that is about 8" long and fits perfect over the header. Baffle, if any will be some type of slip in. Only prob is making some type of support as I will lose the mount at my pillion peg.
If you like I can take better pics and post for you
George

seven · « **Reply #9 on:** August 22, 2008, 06:58:09 AM »

You are very persuasive there George.

Sure, if you could post some pix of the baffle details would be handy.

So you can buy extra baffles separately then?

george · « **Reply #10 on:** August 22, 2008, 07:55:37 AM »

Sorry

No I dont work for Mac, I was in a $crunch when I went Pipe shopping and really really WTB a Kerker but not enough dinero ! Anyway I found a stock baffle on evil bay, but there are many sellers out there.

http://www.dynoman.net/exhaust/baffles.html

I'll use this with the straight tip :

http://www.jirehmetric.com/servlet/Detail?no=2351

The stock baffle is in the can now , sounds awesome with nothing, but it sets off car alarms

george

NPHLYT · « **Reply #11 on:** August 23, 2008, 01:04:52 PM »

To add to this thread...... I am looking for a short exhaust as I will be ditching my passenger pegs and would like something like Carpy's (www.cb750cafe.com), I sent him an email, and he replied, but I cannot find that. DO any of you know if there is a short set with a baffle (however small), I don't care about setting off alarms

. I currently have a 4-into-2 setup that my mechanic hates (says they are crap, who am I to argue). I was thinking to get the Mac and hack it down to a few inches aft of the peg. What jetting pitfalls am I in danger of?

seaweb11 · « **Reply #12 on:** August 23, 2008, 01:40:50 PM »

I just noticed that the cool 4-1 these guys had is no longer on their site?

http://www.yamiya750e.com/index.php?main_page=index&cPath=35_88&sort=20a&filter_id=9&alpha_filter_id=0

http://www.yamiya750e.com

george · « **Reply #13 on:** August 23, 2008, 06:51:07 PM »

Quote from: NPHLYT on August 23, 2008, 01:04:52 PM

To add to this thread...... I am looking for a short exhaust as I will be ditching my passenger pegs and would like something like Carpy's (www.cb750cafe.com), I sent him an email, and he replied, but I cannot find that. DO any of you know if there is a short set with a baffle (however small), I don't care about setting off alarms . I currently have a 4-into-2 setup that my mechanic hates (says they are crap, who am I to argue). I was thinking to get the Mac and hack it down to a few inches aft of the peg. What jetting pitfalls am I in danger of?

I removed my can and installed this car tail pipe tip in less than an hour. I've seen many SOHC's with this set-up , don't know if I like it or not. Very loud as no baffle in yet , sounds good tho. My K8 came with 110 jets of course and with the Mac with baffle or no baffle , and Pods it runs great with 115 mains and no other carb mods. I have the stock air box on now and it is quite rich , top end falls off. With open headers and pods I have done an indicated 110 mph with throttle left @ about 8200 rpm, pretty good I thought !
Hey , NPHLYT , where you at in H-town ? I'm out by Katy, PM me and we'll go riding,
George 281-995-9322

NPHLYT · « **Reply #14 on:** August 23, 2008, 08:09:06 PM »

Currently bikeless, I just sold my Nightchicken as I need something bigger for highway battles and taking trips, I am looking for a new (er) bandit 1250.
A few weeks ago I was waiting for my wife to decide what she wanted to do and during that time I pulled the whole wiring harness out, battery box and electrics, the bars off and stripped them, pulled the rear fender, grab bar and lights as well as front lights and brake hoses. As soon as I figure out what I am going to have powdercoated, painted or polished I will strip the frame and send them to their various places.

I live in the Meyerlandish/S.W. Houston area, you are more than welcome to come by for a brainstorming/beer drinking session.

I am out of town for the next few weeks.

seven · « **Reply #15 on:** August 24, 2008, 07:48:41 AM »

Bingo, thats exactly what I was after too.

Looks like it's the Mac's for me then. Now I just gotta find a way to get them to this great southern land.

Thanks a bunch Georgy.

george · « **Reply #16 on:** August 24, 2008, 08:07:02 AM »

Yeah, as I said I put this together in less than one hour. Removed the chrome can , put a sleeve in the header that was snug on the car tip and used a chrome clamp. The tip cost about 5usd , but I work in auto parts so big help

.
Im going to run it today with no baffle and see how it acts. I think I like the look but do want to baffle it a bit. I will be running on the highway and will do a plug chop just to see whats up.
Here are some, hopefully better pics
G

JS550 · « **Reply #17 on:** August 24, 2008, 09:29:43 AM »

I have a similar set up on my 550. I used a baffle out of my old 2 into 1s and it works great. Kinda sounds like a louder sport bike. Without the baffle it was ridiculous loud! I run the pods with this setup with no jet changes and it runs & idles great.
Jim

NPHLYT · « **Reply #18 on:** August 24, 2008, 10:19:42 AM »

SO I am guessing you had to ditch the center stand?
JS550, what kind of tip is on yours?

george · « **Reply #19 on:** August 24, 2008, 10:58:18 AM »

Hey JS550,
What, or do you have the header braced to the frame ? I lost my brace point at the rear peg so I'm going to fab up something under the bike to brace it . I know eventually it will loosen up the head clamps and leak at the collars .Occaisionaly I feel it vibrating.
Rode it about an hour , sounds great , good power but need to open up the air box or put the pods back on , or change to a 115 main jet which I dont have.
Nice bike BTW how is it to ride with clubmans ? I'm thinkin bout em for the K8 but Im an old man

JS550 · « **Reply #20 on:** August 24, 2008, 11:43:08 AM »

I dont have it braced either. Its actually an auto (sport compact) tip! $6.99 at Murrays. The header I got on ebay, dont know manufacturer, but the collector is 2.5. & I didnt care for the ginormus megaphone it came with. I actually took the center stand off just for looks, it wasnt interfering with the exhaust. My 550 had that long protrusion sticking out & with the short pipe it was really ugly. I kept it & have put it back on to work on the bike, its pretty easy to swap on & off. I'm thingking I could probably brace it on the center stand clamp, it lines up almost perfect. There was a guy on here too ( real nice red 350 or 550?) that I asked & he has a spark arrester on his header. Said its a little loud but provides some back pressure. Thanks for the compliment.
Jim

JS550 · « **Reply #21 on:** August 24, 2008, 11:48:22 AM »

Oh yeah the clubmans. They sure do look cool! Only comfortable for a few miles, then your hands & wrists hurt, then start to tingle, and hopfully by then you get a red light to shake em out! LOL...No thier not that bad, I wouldnt have it any other way.

george · « **Reply #22 on:** August 24, 2008, 12:15:12 PM »

My Bike was fine with the center stand , the Mac came with a gizmo to stop the stand from fouling the chain , but I bought a set of 11.5 " Redwing shocks which lowered the rear about 2" . All was fine until I got on the chicken strip and grounded the stand !! Wow that was a rush to be sliding on the stand .!!! Didn't drop it somehow ! The car behind me said it was a great light show ! I have not touched any part of the undercarriage since.
So now I just use it for maint.
Here is a baffle I may try :

http://www.jirehmetric.com/servlet/Detail?no=2350

That price is cheaper than you can fab one, Dont know where this link came from but I' ordering soon.
G

NPHLYT · « **Reply #23 on:** August 24, 2008, 12:20:07 PM »

This will, by no means, be a distance bike, just something that will look cool as heck and compete for a noise ordinance ticket with the Harleys. Oh, and there is a guy in my neighborhood who parks on the street, his alarm is set waaay too sensitive (my stock nighthawk set it off)

.

NPHLYT · « **Reply #24 on:** August 24, 2008, 12:23:12 PM »

Holy perforated pipes, Batman! That is cheaper that the can opener they used to make the holes. Let me know how it works out for you.

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Author Topic: WTB Exhaust system - But not Mac (Read 2682 times)