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Discussion Starter · #1 ·
For those with a new Thruxton R spec'd with the Vance and Hines Slip On's - Do you need to get the bike re-mapped, so that it runs efficiently and effectively? Don't want to experience rough fuelling or the dreaded cutting out/stalling experience.

I've had other bikes that required a re-map after changing the end cans.

Is this brand of exhaust a real quality modern product - they seem to specialise in Harley Davidson systems?
 

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For those with a new Thruxton R spec'd with the Vance and Hines Slip On's - Do you need to get the bike re-mapped, so that it runs efficiently and effectively? Don't want to experience rough fuelling or the dreaded cutting out/stalling experience.

I've had other bikes that required a re-map after changing the end cans.

Is this brand of exhaust a real quality modern product - they seem to specialise in Harley Davidson systems?
I discussed this with y retailer yesterday and he confirmed that a remap was necessary. V&H is definitely a high-end quality brand. The issue is the remaining cat once you've swapped the cans.
 

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Discussion Starter · #4 ·
I discussed this with y retailer yesterday and he confirmed that a remap was necessary. V&H is definitely a high-end quality brand. The issue is the remaining cat once you've swapped the cans.
Many thanks for responding but now i'm puzzled - I thought the V&H slip-ons featured on the Triumph accessories list (non-track variety) just slipped on after the cat? Thus keeping the bike Euro-legislation compliant? Have spoken to a UK dealer who now thinks no remap is necessary or available.

This is worrying when there appears to be an inconsistency in approach or understanding from the dealers.
 

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Many thanks for responding but now i'm puzzled - I thought the V&H slip-ons featured on the Triumph accessories list (non-track variety) just slipped on after the cat? Thus keeping the bike Euro-legislation compliant?
Indeed. What I meant is that if you are seeking performance and sound, you'll still want to get rid of the cat after swapping the cans.

Regarding the remap, well, Triumph does seem to be inconsistent about a lot of things regarding the new classics range...
 

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Indeed. What I meant is that if you are seeking performance and sound, you'll still want to get rid of the cat after swapping the cans.

Regarding the remap, well, Triumph does seem to be inconsistent about a lot of things regarding the new classics range...
At least they are consistent in their inconsistency.
 

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Discussion Starter · #9 ·
Popped into my Triumph dealer and now I'm being told that there is a 'another' map which is downloaded after fitting the Vance and Hines slip-ons. Apparently it's part of the dealer fitting charge - maybe to discourage me from fitting the slip-ons myself?

I think I'll just live with the stock exhaust system for a few weeks and see how I get on.

It would have been nice if Triumph would allow you to order it from the factory with key accessories fitted - after all, who in their right mind wants to be left with all the parts you didn't want cluttering up your garage?
 

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Popped into my Triumph dealer and now I'm being told that there is a 'another' map which is downloaded after fitting the Vance and Hines slip-ons. Apparently it's part of the dealer fitting charge - maybe to discourage me from fitting the slip-ons myself?

I think I'll just live with the stock exhaust system for a few weeks and see how I get on.

It would have been nice if Triumph would allow you to order it from the factory with key accessories fitted - after all, who in their right mind wants to be left with all the parts you didn't want cluttering up your garage?
Well I spoke to Triumph tech here in the UK yesterday and they said their is still only one stock map for the Thruxton....I never asked about the V&H though, that wasn't the reason for my call....so someone is lying..

I would be surprised if the stock map was not OK for the V&H silencers, but then again, we have the "off road" and the EU ones....I wish Triumph would get their act together over this stuff..
 

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No remap necessary for Vance & Hines slip ons

At least in the United States, no remap is necessary for the Vance & Hines slip ons. My dealer told me that when I bought them, and I checked with Triumph directly on this.

I'm very happy with these mufflers. They are a little louder than the TORS I had on my '13 Thruxton EFI, but not as loud as Predators on those bikes.

They do rob a little torque from the bottom end, but come on strong at mid-RPMs. And the engine doesn't fell like it is fighting itself as you get up to the redline.

My only complaint is that with the decreased back pressure, the bike now burbles and pops on quick decelerations, which isn't that annoying unless you are putting around town.
 

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It would have been nice if Triumph would allow you to order it from the factory with key accessories fitted - after all, who in their right mind wants to be left with all the parts you didn't want cluttering up your garage?
No, it wouldn't. Chances are there's a legislative reason why they aren't installed at the factory - noise emissions, exhaust emissions, CARB certification, etc. Selling them as an accessory removes liability from Triumph and places it on the purchaser.

Back in the day this was quite common for auto manufacturers to do, particularly after the oil embargo and increasing fuel efficiency mandates. They called them "trunk kits" and are where the modern term "option package" comes from.

Also - Vance and Hines is a top quality manufacturer. They were the Yamaha factory team back in the days of the real Superbike racing, when GP bikes were all 2-stroke.
 

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At least in the United States, no remap is necessary for the Vance & Hines slip ons. My dealer told me that when I bought them, and I checked with Triumph directly on this.

I'm very happy with these mufflers. They are a little louder than the TORS I had on my '13 Thruxton EFI, but not as loud as Predators on those bikes.

They do rob a little torque from the bottom end, but come on strong at mid-RPMs. And the engine doesn't fell like it is fighting itself as you get up to the redline.

My only complaint is that with the decreased back pressure, the bike now burbles and pops on quick decelerations, which isn't that annoying unless you are putting around town.
Thanks for the feedback and comparison with the Tors.

Just one question did you remove the baffles or not?

Thanks
 

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Yes take them off

Thanks for the feedback and comparison with the Tors.

Just one question did you remove the baffles or not?

Thanks
It's not really the baffle. You take off the DB killer from the end of the exhaust. It's held in with a c-ring. It reduces it size of the output diameter. The manufacturer needs to install that piece in order to get them in the country for street use. Originally, I thought I would leave them on, and pop them out for track days. But the sound with them in is quieter than stock. So I'm riding with them out all the time. I'll try to post a photo so you can see what I mean.
 

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I just put my Slip ons "on" this evening. My first impressing was improved bottom end which is contrary to a previous post on here. It was a pleasant surprise I must say. I haven't tried popping the inserts out yet, right now the sound isn't really that different but noticeable. Also, I noticed the weight of the stock slip canisters were a few pounds heavier. The pop on decel is usually an indication that the fuel ratio isn't right so a remap is probably in order.

I too was informed by the dealer that a remap was advised, labor was about $55 for them to remap. If I can find someone with a dyno I might just pay the money to put it on and have it tuned properly and then have the image saved to a USB. While I'm at it, perhaps I will set it up on the road mapping :) We shall see what all that entails. I used to work at a performance shop with a dyno putting turbos on M3s and Porsches for golf pros in Florida. I know it can be done and its not very difficult.
 

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It's not really the baffle. You take off the DB killer from the end of the exhaust. It's held in with a c-ring. It reduces it size of the output diameter. The manufacturer needs to install that piece in order to get them in the country for street use. Originally, I thought I would leave them on, and pop them out for track days. But the sound with them in is quieter than stock. So I'm riding with them out all the time. I'll try to post a photo so you can see what I mean.
Thanks a lot. Do you think you could make a short video just to hear the sound?
 
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