M4 street slayer question - ZX6R Forum
 
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post #1 of 10 Old 11-27-2016, 07:41 AM Thread Starter
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M4 street slayer question

My used 2014 zx6r has some kind of no name shorty exhaust and it is painfully loud even with ear plugs. I was looking at the M4 street slayer slip on. I had the m4 Gp on my last bike. Does anyone know if the street slayer is less loud and a little more comfortable on the ears than the GP? I'm kind of limited on what exhaust I can get because the previous owner took off the prechamber to put on the aftermarket shorty and I don't have it.

Last edited by James3504; 11-27-2016 at 07:50 AM.
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post #2 of 10 Old 11-28-2016, 04:22 AM
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I had a 09 that came with the gp and I pulled it off for the street slayer and it was so much better. Still loud as with any short low mount, but it pointed at a different angle making it easier on the ears and larger can that actually quieted it down and gave it a bassy sound.

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post #3 of 10 Old 11-28-2016, 08:37 PM
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I have the Street Slayer. It comes with a baffle. I took it out. If you need it even quieter, M4 sells a Stage 2 dB killer, but the one that's in it should be fine. The other M4 is a damn megaphone. This is actually a muffler. Go for it. $319 shipped us what I paid for it. If it's too loud, call M4 out of Dallas and they will hook you up with a Stage 2, but at that point, you're really robbing the power. I saw the dyno comparison charts between no baffle, stock baffle (stage 1) and Stage 2. I was actually thinking of putting my Stage 1 back in, but drill the hell out of it just to quietest down a little. It's the loudest 600cc class bike in town. MJS Headers (no catalytic converter), Driven Engine Block Off Plates, FlashTune, Bazzaz Z-Fi, Bazzaz Z-AFM, K&N RACE-SPEC air filter (not the street filter), all the foam taken out of the air cleaner and intake. Doesnt help thatbthe slip-on also replaces the exhaust valve setup too. If ypu can fund a good slup on that retains that, then that oughta be quiet.

But Yeah. It's loud, but like I said, I could quiet it down with just one thing. Everything else makes it loud, but yes, it is one of the louder exhaust slip-ons. Yoshi makes a quiet slip on. They're all quiet to me. Overpriced is my opinion. Just order it straight from M4 and have them include both baffles
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post #4 of 10 Old 11-29-2016, 04:24 PM Thread Starter
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Thanks ya'll for the replies I ordered my street slayer today.
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post #5 of 10 Old 12-03-2016, 02:32 PM
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Please let us know how are you are liking this exhaust i am considering this for my bike next year.
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post #6 of 10 Old 12-03-2016, 02:36 PM
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Quote:
Originally Posted by Texas636 View Post
I have the Street Slayer. It comes with a baffle. I took it out. If you need it even quieter, M4 sells a Stage 2 dB killer, but the one that's in it should be fine. The other M4 is a damn megaphone. This is actually a muffler. Go for it. $319 shipped us what I paid for it. If it's too loud, call M4 out of Dallas and they will hook you up with a Stage 2, but at that point, you're really robbing the power. I saw the dyno comparison charts between no baffle, stock baffle (stage 1) and Stage 2. I was actually thinking of putting my Stage 1 back in, but drill the hell out of it just to quietest down a little. It's the loudest 600cc class bike in town. MJS Headers (no catalytic converter), Driven Engine Block Off Plates, FlashTune, Bazzaz Z-Fi, Bazzaz Z-AFM, K&N RACE-SPEC air filter (not the street filter), all the foam taken out of the air cleaner and intake. Doesnt help thatbthe slip-on also replaces the exhaust valve setup too. If ypu can fund a good slup on that retains that, then that oughta be quiet.

But Yeah. It's loud, but like I said, I could quiet it down with just one thing. Everything else makes it loud, but yes, it is one of the louder exhaust slip-ons. Yoshi makes a quiet slip on. They're all quiet to me. Overpriced is my opinion. Just order it straight from M4 and have them include both baffles
How are you liking the K&N Races-spec filter? I was looking into this and specifically says not for street use due to it being only two layers. Have you had any issues with it?
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post #7 of 10 Old 12-08-2016, 11:31 AM Thread Starter
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Well I got my street slayer in the mail last week and when I pulled the old exhaust it had the exhaust gasket stuck on it. That being said if anyone getting this exhaust I would suggest getting a new exhaust gasket as the street slayer doesn't come with one. I also learned that you need the rubber bushings from the pre-chamber to attach the exhaust. There were no installation instructions either, but it wasn't that hard to figure out. After my new exhaust gasket came in the mail I put the new exhaust on, but couldn't test ride it because it has been so rainy and crappy here in Ga for the past week. I finally got to take a short ride last night and after having basically just a straight pipe for an exhaust the street slayer is definitely more comfortable on my ears. I didn't have to touch my ear drums with my ear plugs ha ha. I was also impressed with the exhaust note. The engine seemed to be running smoother and the throttle seemed a little more smoother as well. All in all I am highly satisfied with this exhaust.
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post #8 of 10 Old 03-01-2017, 07:45 PM
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Im sorry, but what gaskets are you talking about? Do you mean the clamp sleeve before the prechamber that tightens the pipe to the can? And what bushings are you talking about too?

I ask because i just put on a street slayer Sunday. I just removed the muffler and prechamber box. And then the m4 can just slid in. No gaskets or bushings that i saw?

Lemme know bro! Thanks!
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post #9 of 10 Old 03-01-2017, 10:04 PM
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Quote:
Originally Posted by Sammy510 View Post
Im sorry, but what gaskets are you talking about? Do you mean the clamp sleeve before the prechamber that tightens the pipe to the can? And what bushings are you talking about too?

I ask because i just put on a street slayer Sunday. I just removed the muffler and prechamber box. And then the m4 can just slid in. No gaskets or bushings that i saw?

Lemme know bro! Thanks!
The gasket is a graphite ring that goes inside the end of the header where the slipon slides into it. You may not have noticed it because it's dark gray (kinda the same color as the inside of the header pipe.

This is what it looks like:

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post #10 of 10 Old 03-02-2017, 05:20 AM
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I think ill hafta take it off real quick to see, just to make sure. Does that gasket usually more than likely stick to the inside of the header when you remove the pre-box? Or are there chances it will stick to the pre-chamber when coming out? Oh well, i think im alright. It was a pretty snug fit going into the header with that M4.

Thanks, Slider for the info! Appreciate it.
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