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KZ650/750 Mac 4-1 exhaust? Pics? 05 Sep 2022 20:54 #873410

  • stinkfinger
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Well, my stock exhaust has cracked just behind the right muffler, so no more procrastinating on the exhaust purchase.

Seems as though Delkevic and Mac are the only "budget" choices?  I'm not super fond of how low the Delkevic hangs below the engine.  From the poor angle shots I've found of the Mac, it looks like it might tuck up under a little nicer... but it's hard to tell.

Does anybody have photos of it installed that they are able to share?  Also, I'm looking for confirmation that the center stand remains functional with the Mac.

Thanks!
1981 KZ750E, 2005 GasGas EC300, 2023 Husqvarna 701 Enduro

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KZ650/750 Mac 4-1 exhaust? Pics? 06 Sep 2022 07:28 #873441

  • Nessism
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My 750 had a MAC when I first bought it.  Check my build thread for a few photos, that unfortunately, don't show the clearance to the engine.  As I recall though, it tucks up half way tightly.

Header to engine clearance is one of my pet peeves, and like you, I don't like a header that hangs down too much.  I have a NOS Supertrapp header for my bike, which on paper sounds like the holy grail.  Problem, though, it hangs somewhat low.  Too low for my liking anyway.  That's why, in part, I stayed with the OEM exhaust for my bike.  It's not overly heavy, it tucks tight, and, in my opinion, it sounds great for an OEM system.  
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KZ650/750 Mac 4-1 exhaust? Pics? 06 Sep 2022 07:32 #873442

  • JR
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I had a MAC (black) for years. No problem with centre stand. See 1st pic. 
Cant seem to find a pic from the other side.


When it needed replacement I went with a Delkevic. Pics 2&3. Also no problem with centre stand. I dont think of the Delkevic as being lower than the MAC but perhaps it is. No problem the past 4/5 years.  Close up/underneath pic is from today.  I did like the sound of the MAC though. A deep rumble. The Delkevic is louder but I have a short muffler. The Delkevic website currently shows a longer muffler on the 750E so may be a bit quieter. 
Hope this helps

 
 
 
1980 kz750E1, Delkevic exhaust
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KZ650/750 Mac 4-1 exhaust? Pics? 06 Sep 2022 12:22 #873466

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Thanks for the pics JR, they are helpful... and interesting.  Your Delkevic looks good... seems like it doesn't hang as low as others I've seen online, this for example:



Budget Cafe Build E41: Installing the Delkevic Exhaust
1981 KZ750E, 2005 GasGas EC300, 2023 Husqvarna 701 Enduro

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KZ650/750 Mac 4-1 exhaust? Pics? 06 Sep 2022 13:05 #873468

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Yes the one in the video does look to hang low. I wonder though if this was related to how they connected to the rear bracket to allow for the rearset ?. Hmmmm
1980 kz750E1, Delkevic exhaust

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KZ650/750 Mac 4-1 exhaust? Pics? 06 Sep 2022 13:08 #873469

  • Nerdy
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Well, my stock exhaust has cracked just behind the right muffler, so no more procrastinating on the exhaust purchase.

Seems as though Delkevic and Mac are the only "budget" choices?

 

MAC went out of business last year, or maybe it was the year before. Anyway, there might still be some of their stuff available but there won't be any vendor support.

EDIT: It was 2020. I bought the last '81 GPz550 MAC system for half-price at denniskirk.com in November 2020.
1979 KZ400 Gifted to a couple of nephews
1967 Yamaha YCS1 Bonanza
1980 KZ440B
1981 Yamaha XT250H
1981 KZ440 LTD project bike
1981 GPz550
2013 Yamaha FZ6R

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Last edit: by Nerdy. Reason: looked up the date

KZ650/750 Mac 4-1 exhaust? Pics? 06 Sep 2022 14:24 #873474

  • Kelly E
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We just put a Delkevik on our 80' Suzuki GS 1100E. The centerstand works fine with the exhaust. The Delkevik doesn't hang too low. It's well made and it comes with a good centerstand stop. We're ordering a Delkevik with the megaphone muffler for the 77' KZ 1000 LTD. There was an issue with the capture nut that holds it into the muffler on the Suzuki system and Delkevik sent a new baffle right away. They told us to keep the other baffle, I might be able to reweld the capture nut on it and save it for a backup.
The Rust Bros. Garage Collection
1974 Honda CB 550 K0
1975 Honda CB 400F Super Sport
1977 Kawasaki KZ 1000 LTD
1980 Suzuki GS 1100E
1981 Suzuki GS 1100E
1982 Honda CB 900F Super Sport
1983 Honda CB 1100F
1984 Honda Sabre 700
1984 Honda Interceptor 1000
1994 Kawasaki ZG 1000 Concours
And more
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KZ650/750 Mac 4-1 exhaust? Pics? 06 Sep 2022 14:37 #873475

  • ShaneDude
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Well, my stock exhaust has cracked just behind the right muffler, so no more procrastinating on the exhaust purchase.Seems as though Delkevic and Mac are the only "budget" choices?  I'm not super fond of how low the Delkevic hangs below the engine.  From the poor angle shots I've found of the Mac, it looks like it might tuck up under a little nicer... but it's hard to tell.Does anybody have photos of it installed that they are able to share?  Also, I'm looking for confirmation that the center stand remains functional with the Mac.Thanks! 
dude, i have a 77 KZ650 and have a spare delkevic 4-1 slightly used exhaust. It sounds incredible. I can sell it to you for $100.

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KZ650/750 Mac 4-1 exhaust? Pics? 06 Sep 2022 18:13 #873483

  • rstnick
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I have a Delkevic exhaust on my KZ650 and highly recommend it.
Fit, finish, quality, price and sound are all great.


Rob
CANADA

Need a key for your Kawasaki? PM me

1978 KZ650 C2, 130K kms, Delkevic ex, EI, CVK32, PMC easy clutch, ATK fork brace, steering damper, braced swingarm, 18" Z1R front wheel.
2000 ZRX1100
2011 Ninja 250R
2005 z750s
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KZ650/750 Mac 4-1 exhaust? Pics? 07 Sep 2022 09:01 #873504

  • slayer61
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I have never owned or used a Mac header/exhaust... but I don't remember folks ever giving them the praises I hear about the Delkevic.
I gave my Mrs. the option of a new Del on her GPz or freshen & tart up her Kerker. She chose the latter. Suits me fine.
Don't be ridiculous! It's only a flesh wound!

Wife's little bike... 1984 GPZ 550 Kerker and DynaJet stage I kit
Wife's BIG bike...... 1981 GPZ 1100 Kerker and factory FI Mikuni RS34s W/ K&N pods

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KZ650/750 Mac 4-1 exhaust? Pics? 07 Sep 2022 12:39 #873517

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Yes the one in the video does look to hang low. I wonder though if this was related to how they connected to the rear bracket to allow for the rearset ?. Hmmmm
Yah, given the way it is installed as individual tubes, I guess there must be some latitude for adjustment?
1981 KZ750E, 2005 GasGas EC300, 2023 Husqvarna 701 Enduro

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KZ650/750 Mac 4-1 exhaust? Pics? 07 Sep 2022 12:41 #873518

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MAC went out of business last year, or maybe it was the year before. Anyway, there might still be some of their stuff available but there won't be any vendor support.
 
Good point... if there were fitment issues, I'd probably be out of luck.
1981 KZ750E, 2005 GasGas EC300, 2023 Husqvarna 701 Enduro

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