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What kind of exhaust is this?

  • Thread starter Thread starter dlanes
  • Start date Start date
D

dlanes

Guest
I bought this exhaust locally, but he said he said he's not sure what brand it is. He said he thinks it's Kerker. I just repainted it today with some VHT flameproof paint. It's for my 78' GS750

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Kerker/Mac. Mac bought Kerker some years back. Used their design, but unfortunately didnt retain the quality.
 
Alright, so is this an earlier design or newer mac? It originally had like a glossy paint job. I repainted to fix some scratches and rust.
 
Hard telling honestly. I would bet its a Mac if it had a glossy paint job on it..
 
Kerker
Once fierce competitors, SuperTrapp purchased Kerker in 1991 and has worked to reinvigorate the brand, introducing dozens of new products since the purchase. Kerker exhausts have a long-standing reputation for quality and satisfaction and have long been popular with both the racing circuit and the street rider. They deliver superior top end power in one of the most lightweight designs available. The systems feature Dyno-developed cores for optimum performance, billet CNC aluminum flange adaptors and packing specially engineered utilizing sound absorption technology. Kerker is also fast becoming known for styling innovation with round and elliptical canisters and sleek rainbow titanium finishes.
 
blowerbike said:
mac is a low end/heavy/not known as a performance company.
i just had to tell ya:lol:
Click to expand...
Dunno where you got that info Terry, but Mac bought the old Kerker design years back. They also STILL offer replacement baffles for Kerker pipes. Now, I dunno if they bought ALL the designs, like the later canisters and what not, but the early pipe like this one, is a Kerker design, probably manufactured by Mac (which still produces this design) Look around for old Kerker pipe baffle replacements...they're sold thru Mac, the two pipes are identical, except as you said, Mac uses inferior quality metal and finishing components...
 
google it.
mac pipes dont have a megaphone shape.
kerker and V&H does.
mac baffles are the same size on either end unlike a megaphone collector.
what i just copied and paste was from a google search.
this guys pipe looks like a kerker megaphone system.:)
 
Ive got TWO of those in my garage. They BOTH have the same end, same baffle. One says Kerker. nice pipe for the day. The other says MAC, and its nearly the same pipe, little straighter actually, same baffle, but not as good of a finish as evidenced by the flaking finish and rust..heh...
 
Supertrap bought Kerker back in the day. Maybe Supertrap sold the properly rights for the old stuff to Mac?
 
original kerker baffle cones was aluminum.
i see mac offers there design baffle's for kerker's for less money.
my link shows supertrapp acquiring the company in the early 90's.
i don't believe mac makes complete kerker systems.
 
So this is kerker exhaust? The finish was good other than where it looked like it was scrapped in the front and a few other places where the finish was chipped. Kinda reminded me of my friend who just got headers, but his was ceramic coated. Either way there is no tag anywhere on the pipe or muffler. Google is no help for me since I tried searching.
 
I picked up the same MAC pipe from a member here a while back. There are no indications on it as to the make, but it is ceramic coated. One of the telltale signs that it is a MAC versus the Kerker counterpart is the quality, and strength of steel in the flanges. The MAC flanges bend quite easily when tightening them up. The almost Identical Kerker pipe on my CB750 has much stronger flanges, and is marked Kerker.

I agree that MAC pipes are a tad lower on the quality side, but if they are taken care of, and the flanges aren't torqued to 200 ft pounds, they are a great exhaust. The ceramic coating on my cheapo MAC is very nice...

I would assume yours has the removable baffle?

Jeff (teet)
 
Yah, it must be mac exhaust then. The baffle comes out, but I haven't taken it out. I have little problems fitting the exhaust as far as mounting the muffler end. Does anyone have pics of their 4 to 1 installed?
 
On the back end you'll have to probably fabricate a little bracket or something. They're kind of "universal" so they dont really fit right up to every bike without some doing. Ive used a simple piece of steel or alu bar stock with appropriate holes drilled into the ends to make it work..its just support.
 
Here is a pic of mine mounted. I bent up a Small piece of stainless stock for a bracket as it didn't come with one...

I just used a stainless bolt in the slot on the can and made up the little bracket to mount it to the stock exhaust mount...took 5 minutes.

Hope you can see it ok..

Jeff (teet)

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Ah, that's exactly the same exhaust on my bike haha. I Guess I'll have to figure out a bracket to support the end. I've just been idling it to cure the paint tonight. I was kinda wondering why the exhaust flanges weren't flush, but looks like that is normal.
 
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