Black Panther SM Exhaust alternative

[hulagun]

Here's pics of the new pipe on my Black Panther.

- Holeshot Y-pipe new from Bernd at http://www.tunebike.de $150.
- Vance & Hines S4 stainless (Yamaha R1) canister, used off ebay $60.
- Welding and mounts $200.
- TOTAL: $410.

I removed my stock exhaust but had a local fabricator do the install work. He shortened the Y-pipe to get the angle I wanted. He built a transitional adapter and made a beautiful stainless clamp from scratch for the inlet, since I forgot to get one. The pipe hangs from the rearmost stock pipe mount using a stainless tube and a piece of threaded stainless rod with 2 stainless nuts, mostly hidden by the sidepanel. It all looks great, and including Y-pipe is 4.5 lbs lighter than stock.

I used a street (not race) muffler for an R1 hoping it would be quiet. Wrong. The bike barks loud on hard accel and most decel. Sounds almost quiet at idle and good while cruising.

If I did it all again I'd try to remember all the springs and clamps, try to get a muffler with a 1-7/8" inlet, try to get a quieter muffler maybe off a Buell or a Ducati. I'd also tell the fabricator "Measure twice... cut once!" hahahaha

It sounds GREAT although it could be a bit quieter. The fabricator and I are going to try making a db-killer insert to knock a couple decibels off.
The bike runs noticeably smoother and even feels lighter. (The motor does now cough and die occasionally idling at stoplights, but it's really seldom, and it starts right back up). I also bought a jet kit from Bernd that may cure this once I install it.

Oh yeah, my turnsignal melted right off so i am on the hunt for a clean but still finctional turnsignal set up that will be out of the pipe blast.

Ivan

[bikemike]

That looks real nice Ivan. I can appreciate what you are saying about the noise but be careful what you wish for. I used a stock Ducati can on my underseat mod (furthur down this page) and it is so quiet I can hear the cam turning in the head! It sounds as quiet if not quieter than stock.

My next move is to get a performance Ducati can and try that out.

Once again, nice job!

BTW, what tires are you running??

Mike

[hulagun]

Thanks Mike!

Watch ebay there are some good deals to be had especially if there is a dent or scrape that only you can see after it is mounted on your MZ!

Tires on my bikeare Metzeler Sportec M1, if I recall correctly. Next tires will be Avon Distanzia, only because I like their aggressive look (and if they are a bit less sticky... so what? I can slide the rear. )

Half the fun of this bike is it's Bat-Cycle looks. I just had a cute female runner pause and tell me my bike was "cool" as she ran by (no she wasnt running to get away...)

Ivan

[keithcross]

Hi

Re the Avon tyres. I purchased a set of Avon `Rain' Tyres last year and while the grip was real good evewn in the wet, the rear only lasted 958 miles. I have since put a distanza on teh rear and it is just about done after about 3500 miles. The most I have ever got out of a rear tyre. The grip is real good and teh rubber nice and soft. A tyre dealer at a Supermoto race meet reckons it uses the same rubber as the rain tyre and to be honest in dryish conditions it feels it. Not as good in the rain of course.
All in all the mixture of Avon rain on teh front and a Distanza on teh back seems to work well. Be awaare theough that Avone have recommended that I inflate the front rain tyre to 2.3 bar (32-33 psi).

keith

[Du Can]

(The motor does now cough and die occasionally idling at stoplights, but it's really seldom, and it starts right back up).

Ivan, Mine does the same exact thing after installing my carbon M4 pipe.
I found bumping the idle up a bit makes this problem occur less frequently.

Plus, I run Pirelli Diablos. I can get the back to kick out a bit if I really want to, but they really stick. Plus, you can get it in softer compounds like the Corsa and Super Corsa. The tread looks cool too.

Duncan

[hulagun]

OK here is an update on my recently installed V&H exhaust can.

The pipe was not so bad but I like to fly stealth around cops. I asked a few people and they said the pipe was loud but OK not loud bad like a Harley with open pipes. I noticed a couple times cops looked up as I went by, even though I wasn't being a rev head. I figure they heard me coming at high speed and knew I had slowed down as I got near them. Paranoid maybe but I ride every day and have only got 2 tix in 25 years of riding like a hooligan.

I like stealth.

We went in today and welded a disc of perforated stainless steel into the end of the inner perforated tube, at the end closest to the motor. The perfed metal matched exactly the perf metal used inside the pipe, and in effect this created a perforated "wall" that the exhaust pulses have to go thru to get out. Sorry I dont have photos. It works great. It took the sharp bite off the exhaust noise, but the pipe still sounds good. It doesn't feel any slower either.

Now it's time to install the jet kit and look at the carb (because the bike is definitely running rich, and has been since I got it).

Ivan