PSA Scorpion Exhausts (Negative Review)

First, in late 2016 I bought the Hustle Hard 2015 R1 and dealing with Mark was awesome! The bike came with two Scorpion exhausts. In 2018 one of the oxygen sensor bungs blew out of the exhaust.

I had to get a titanium patch welded over the hole. The replacement Y-Pipe was over $600, so a $175 welding bill seemed fine. That exhaust was destroyed last year in a crash, so the second exhaust was installed.

Two weeks ago another bung blew out of the second Y-Pipe. After another trip to the welder and a $210 bill, I have a second repaired Y-Pipe.



I expect a lot criticism of the weld. This is a crappy little welding place, but there are places that didn't want to touch it in the first place, so I'll deal with how it looks if it holds up like the other one did. The first blow out happened along a bunch of expansion welds which may have weaken the bung weld. This one was right in the middle and should not have had any weak points.

I am very disappointed in this product and would not buy this brand in future. Maybe this is a common occurrence, but I have not data to support that. Anyone have experience with this issue with other brands?

 

Can't say for certain, but probably less than 50 on the second failure. The first had maybe double that

 

Steel > Titanium is my understanding for exhaust. Titanium being prone to cracking. Seen it firsthand so many times on race bikes might be something to it. But always aftermarket. So maybe oems used thicker stuff?

 

FMF Powerbomb exhaust on my brothers KTM 690 did the same thing. Not many hours on it either.

 

Wow I never seen that happen before. I have a Scorpion slip on my GSXR 750 never had an issue with it, but it’s stainless/carbon.

I would contact Scorpion with this and see what they say. Those systems were more than likely really pricey new so I would assume they would want to make you happen to avoid this from happening lol..


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Better off taking a good dump in the morning to save weight.

 

Or at least not something you thought you would ever willingly post about on the beeb!

 

Hindle

 

M4 stainless/carbon
https://m4exhaust.com/yamaha/yamaha-r1/yamaha-r1-2015-18/

 

Damn that Welder making Lawyer $$$, and for that weld should be embarrassed... IMO.

 

Yeah but titanium makes more hosepowah. Whoop!

 

As opposed to the alternative?

I hear this kind of stuff often, as if one component in itself makes the difference in weight savings. Paying attention to numerous small details is what nets significant weight savings. I knocked 80 pounds off a 300 ninja by doing that and some of it was by substituting lighter materials but most of it was removing unnecessary weight from what was already there. There was another 10 to 15 pounds that I could've done with a bit more effort too.
Sure there can be tradeoffs to using lighter materials, but simply trading out lighter materials without accounting for their properties gets things like the problem the OP presented. The exhaust bung is way more solid that the titanium around it, so the thin stuff is going to vibrate and work harden right at the root where the weld meets the tube. If there was no bung there would be no problem. When you're talking about things this light and thin there's less margin for error in fabricating as well. The skill of the welder and the need to completely shield the titanium with Argon while welding is going to play a major factor in how long it lasts. The pretty rainbow color of the repair is an indicator that it wasn't shielded properly but considering the alternative I'd go with it.

 

I’ll be honest, when I saw this weld my first thought was man, I bet Britt will throw up when he sees this weld,

 

Hehe I was honestly hoping Britt wouldn't show up. Poor Op is hurting already

 

My expectations were not high from the start. If you only saw the office of this place, you would know the expectation of good quality work is not included. If it holds, great. If it doesn't, they said they would fix it for free.

 

That's the whole point of using Ti to begin with..

 

That's weird it would blowout at two bungs and not anywhere else, like at a joint. I wonder how their weld process differs between locations.

Maybe tightening O2 sensors or plugs broke/weakened the bung welds.

 

Show us a pic of the back side of that repair