exhaust recommendations

[rbaldenegro]

Hey people, I am Looking to put a different exhaust on my 79" gs750 cafe. At the moment I have a Jardine Exhaust Muffler System that sounds great at high rpms, but barely noticeable when cruising around town and also not the sound I'm looking for. I want an exhaust that sounds crisp and has some bark to it. Any suggestions? Would also like to keep my headers if possible and just buy the exhaust to save some loot.

 

[shark]

Contact Chris Redpath at MotoGPWerks.
if anyone has an idea or could fabricate it for you, Chris is your guy.
I have a Jardine exhaust on my Gs1000G by the way. Just had it ceramic coated and it looks great.

 

[Steve]

I have a Jardine exhaust on my Gs1000G by the way. Just had it ceramic coated and it looks great.

Hey, Shark, would you mind sending me a picture (or posting it here) of your Jardine? I have been told that's what might be on my 850, but nobody has been able to tell me for sure. Would be nice to see side and rear shots of the muffler, especially.

Thanks. :encouragement:

.

 

[Guest]

Why don't you buy a Harley muffler? they usually go real cheap.

 

[tkent02]

Because they will make it run like crap, very restrictive.

 

[Wraith]

Have a look on the bay at a seller called pro-race at their end cans, a good place and will make the can to take your link pipe do different stiles and they sound cool at hi and low ROMs.

 

[Ace07]

Because they will make it run like crap, very restrictive.

Hey Tkent02 what exhaust do you plan on running with when you do the 550 to 650 big bore rebuild? My exhaust is completely shot and I will need a new one.

 

[Ric]

Crisp with bark to it??? Straight pipe. B(

 

[boris.h]

For my own, I bought a gsxr 650 full one, if you want to make the gs 650 / 550 swap I think this is a good deal. The exhaust is made in stainless steel, and it fits to the motorcycle. The big advantage is that the Id of the tubes is 33mm, so it's bigger than everything stock you can get. For my own, I drilled inside the head to finish to 33mm, where the echaust starts.

 

[Grimly]

Because they will make it run like crap, very restrictive.

With the 1" baffle stop drilled out, they come alive. I've been running a pair of Dyna mufflers on the XJ the past few months, with good results even in stock form (baffle stop in place). There was an annoying slight sonic / gas mismatch between them, so I attempted to even them up a bit.
Hah; so much for that idea. The packing on one side was firmly stuck to the baffle tube and just wouldn't come out, and the attempt to remove the baffle tube dislodged the 1" plate.
Faced with the impossibility of replacing it, I removed the one from the other muffler and fitted the pair back on.
It's nothing like as loud as I thought it might be (two small pots per muffler, instead of one big one) and now has quite a nice crispy bark to it.
Also, it takes off like a scalded cat.
More testing tomorrow, and plug chops, etc, just to make sure of what's happening low, mid and high ranges.
If necessary (I'm no great fan of overly loud pipes) I can put some extra mesh down the centres, or fit cones on the ends.
This is the handy thing about only paying a quid for the pair - so cheap as to be near free and I've no hesitation about playing with them.

 

[tkent02]

Hey Tkent02 what exhaust do you plan on running with when you do the 550 to 650 big bore rebuild? My exhaust is completely shot and I will need a new one.

I'd like to get something interesting like a stainless or titanium Tri-Y or something but not having any luck finding anything at all, I'll run the old 550 Kerker until I do.

 

[tkent02]

With the 1" baffle stop drilled out, they come alive. I've been running a pair of Dyna mufflers on the XJ the past few months, with good results even in stock form (baffle stop in place). There was an annoying slight sonic / gas mismatch between them, so I attempted to even them up a bit.
Hah; so much for that idea. The packing on one side was firmly stuck to the baffle tube and just wouldn't come out, and the attempt to remove the baffle tube dislodged the 1" plate.
Faced with the impossibility of replacing it, I removed the one from the other muffler and fitted the pair back on.
It's nothing like as loud as I thought it might be (two small pots per muffler, instead of one big one) and now has quite a nice crispy bark to it.
Also, it takes off like a scalded cat.
More testing tomorrow, and plug chops, etc, just to make sure of what's happening low, mid and high ranges.
If necessary (I'm no great fan of overly loud pipes) I can put some extra mesh down the centres, or fit cones on the ends.
This is the handy thing about only paying a quid for the pair - so cheap as to be near free and I've no hesitation about playing with them.

I had them on my 650G, that's the only time I've ever run them. Terrible power, terrible fuel economy, kind of loud but an annoying sound, Honda-like. I put stock 650G mufflers on and it was a Hell of an improvement. Mine may have been some aftermarket crap, dunno for sure.

 

[Ace07]

I think my exhaust is shot. Whenever I took it off, I could hear the baffles rattling around.

 

[DSS]

Hi
I am wondering if a 4-1 exhaust system made for GS 550 77-80 could fit a GS 650 G / GT 82
Can anyone tell me?

 

[Spyder]

I might be persuaded to sell my D&D muffler... I just replaced it with a "refurbished" V&H with no packing. Sounds pretty good, looks pretty good.

The D&D is in great shape, no scuffs or scratches, and has LOTS of crispy bark, lol. Make me an offer...

 

[tkent02]

Hi
I am wondering if a 4-1 exhaust system made for GS 550 77-80 could fit a GS 650 G / GT 82
Can anyone tell me?

It can be made to fit. I just put my 550 Kerker on my bike with the 650 head. The inside of the ports are fatter on the 650, so you need to make some kind of spacers to hold the smaller 550 pipes in the center of the 650's larger ports. Not sure how it would fit on the rest of the motorcycle, you may have to rig up some brackets or something.

 

[Grimly]

I had them on my 650G, that's the only time I've ever run them. Terrible power, terrible fuel economy, kind of loud but an annoying sound, Honda-like. I put stock 650G mufflers on and it was a Hell of an improvement. Mine may have been some aftermarket crap, dunno for sure.

After a day of being assaulted by a nasty off-beat sound, which made a noise like a defective Ducati (I'm sure this is caused by the connector pipe underneath, and the problem of 1&2 and 3&4 feeding into LH and RH mufflers respectively) I had another go at them. I effectively put the baffle plates back in place and augmented them by holding a stainless steel pot scrubber in the main absorption pipe, via some washers and threaded rod.
Hola! Sanity is restored. It now revs cleanly and quietly.

 

[DSS]

Thanks tkent02!
Im worried about it could hit the frame at any point.Have searched the internet for 4-1 system,and I have found a black Mac for GS 550 77-80 which I hope could fit my bike.

 

[tkent02]

Thanks tkent02!
Im worried about it could hit the frame at any point.Have searched the internet for 4-1 system,and I have found a black Mac for GS 550 77-80 which I hope could fit my bike.

I don't know about that, my frame is the 550 frame. Mac makes a 650 4-1 pipe too.

 

[DSS]

Yes they do,a chrome megaphone.But I dont want chrome and I dont want megaphone.