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UTC quote
STILL NOT! Header arrived the muffler not yet...🤬
@giallo avatar
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UTC quote
SC68TER wrote:
On taking the exhaust out of the box, I have noticed that the dB killer screw has been spot-welded in place!

It's an E5 requirement for the db killer to be not removable.
@sc68ter avatar
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Member
2018 GTS 300 Super Sport (Grey)
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UTC quote
giallo wrote:
It's an E5 requirement for the db killer to be not removable.
Ok thanks.

So whilst not very E5 compliant, has anyone had any experience of successfully removing a dB killer?

On reflection it looks like I should have bought the race version plus an additional down pipe with cat.

Would have been more than I've spent here but would have given me the option to remove the end.
UTC

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UTC quote
I think the header without cat and the muffler with db killer combo will have a correct neighbour friendly, sporty sound.
@sc68ter avatar
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2018 GTS 300 Super Sport (Grey)
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UTC quote
AronMarton wrote:
I think the header without cat and the muffler with db killer combo will have a correct neighbour friendly, sporty sound.
Unfortunately without the cat it won't pass an MOT from what I can see.

I'll have to come up with a plan B!

Facepalm emoticon
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UTC quote
SC68TER wrote:
Well I'm stuck with it now, and looking at it in more detail, the screw doesn't even serve a purpose - removing it won't make a difference!
are you really sure about that? looking at pictures like this makes me thing you could just dremmel the tack weld off and then remove the screw (and reinstert)
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@znomit avatar
UTC

Veni, Vidi, Posti
LX190 Friday afternoon special, Primavera, some pushbikes
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UTC quote
rdhood wrote:
Yuck. If you go down, that thing poses an additional threat to get torn off or further damage the bike. It's also extremely pillion unfriendly, and poses a burn danger to anyone on the back. Overall, a crappy design for a Vespa.
And most importantly no curry hook.
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UTC quote
znomit wrote:
And most importantly no curry hook.
and I couldn't stick a box of beer between my feet (one of the many reasons that a vespa is better than a bike)
@steelbytes avatar
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UTC quote
Another choice exhaust for the connoisseurs
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@sc68ter avatar
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2018 GTS 300 Super Sport (Grey)
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UTC quote
steelbytes wrote:
are you really sure about that? looking at pictures like this makes me thing you could just dremmel the tack weld off and then remove the screw (and reinstert)
When I get a moment I am going to post some pictures as it looks like the insert is held in place by more than just the welded-screw - the edges look almost joined.

It will hopefully make more sense once I photo it...

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UTC quote
I recently installed an Akrapovic.

They were on sale!

I love everything about it.

Power, sound, volume and looks.
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@sc68ter avatar
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UTC quote
steelbytes wrote:
are you really sure about that? looking at pictures like this makes me thing you could just dremmel the tack weld off and then remove the screw (and reinstert)
Ok so here are the photos.

The screw appears to hold the two pieces of exhaust together but do not do anything other than penetrate through the two pieces.

Visually the two parts of the exhaust appear to be joined but of course this could be just the paint and will break away once the screw is removed.

That said, looking at the photo (can't upload more than one from my phone) I cannot believe that pulling the dB killer out will work as easily as hoped…

Have tried to contact Remus but they're as much use as tits on a man, so hoping to draw on the combined wisdom of the MV forum!

Photos attached and grateful for any/all opinions (as long as they're helpful!)
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@sc68ter avatar
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Photo #2
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SC68TER wrote:
Ok so here are the photos.

The screw appears to hold the two pieces of exhaust together but do not do anything other than penetrate through the two pieces.

Visually the two parts of the exhaust appear to be joined but of course this could be just the paint and will break away once the screw is removed.

That said, looking at the photo (can't upload more than one from my phone) I cannot believe that pulling the dB killer out will work as easily as hoped…

Have tried to contact Remus but they're as much use as tits on a man, so hoping to draw on the combined wisdom of the MV forum!

Photos attached and grateful for any/all opinions (as long as they're helpful!)
maybe remove the weld (dremel etc) then remove the screw and see what happens. You can always put the screw back in if you have no success
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And another off Instagram
https://instagram.com/drvvespa
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⚠️ Last edited by SteelBytes on UTC; edited 1 time
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Molto Verboso
2009 GTS250, Ducati Monster M900, KTM 390 Adventure, Honda CR125
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@shebalba avatar
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UTC quote
The look of the clamp on that Nuke is really quite nice.

I would also be upgrading my swingarm to one of those slick SIP or Zelioni options to complete the clean look.
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2018 Vespa GTS 300 Super
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UTC quote
I love my Remus
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UTC quote
I just purchased a Malossi, hopefully having it fitted on the 7th Nov, I'll provide some feedback later 👍
And here it is
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⚠️ Last edited by paul blknblu on UTC; edited 1 time
@yellow300gts avatar
UTC

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300 GTS supertech HPE
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Location: Icy Norway:)
 
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UTC quote
labphoto wrote:
I love my Remus
i have the same exhaust om my, but does anyone else have a malossi tuning on??
as i learnt from a wise man that a engine with sports exhaust would run lean!!
the tuning as i have dialed it in doesent do anything else then give it a little more gas.no effect boost...just to be nice to the engine.

thoughts??

and yes....i love the sound of my doubble remus, i run it with the noice killer in!
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Yellow300GTS wrote:
i have the same exhaust om my, but does anyone else have a malossi tuning on??
as i learnt from a wise man that a engine with sports exhaust would run lean!!
the tuning as i have dialed it in doesent do anything else then give it a little more gas.no effect boost...just to be nice to the engine.

thoughts??

and yes....i love the sound of my doubble remus, i run it with the noice killer in!
I added a malossi lambda emulator when adding my arrow exhaust. made zero performance different so remvoed it.
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UTC quote
boovilly wrote:
TSR Odyssey. Nice deep tone. Good size (for showing off more of the rear wheel) and at least half the price of Akra, Remus etc
How's your TSR odyssey holding up. I want one!
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UTC quote
Yellow300GTS wrote:
Remus Dual i cool:)
How's the Remus holding up after two years. Looks to cool!
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UTC quote
Eelco wrote:
REMUS RSC Dual Flow Carbon (i live near the beach).
What an absolutely sweet looking muffler. How's it holding up?
@cdwise avatar
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GTS 300, Buddy 125
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UTC quote
My interest in an aftermarket exhaust would be a quieter and sleeker if possible. Anyone know of an exhaust that is quieter and does not negatively impact performance.
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UTC quote
just some like fancy exhausts ...
primavera / sprint
primavera / sprint
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UTC quote
A short while back Akrapovic introduced a cover for the front end of their exhaust, carbon fibre? It matches the outlet cover, and looks quite neat. It is held on by two screws going into clamps around the pipe, a little fiddly to set up and align but very simple to remove to get at the springs.

My Akra has migrated from my GTS250 to my GTS300. It was silver but is now black, and I have replaced the wadding twice.
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UTC quote
Hi I'm a PM tuning fan... Have one on my GTSand RT$ and have lasted me fro 12 years and 15 years... Oomphy and great sound...whereas in London with rain and salt on the roads the stock ones last only 3 years.
Saw this twin exhaust last mont, don't know the make , but looks stealthy.
Gass silver machine GTS 250
Steath bomber like exhaust.
Steath bomber like exhaust.
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gass wrote:
Hi I'm a PM tuning fan... Have one on my GTSand RT$ and have lasted me fro 12 years and 15 years... Oomphy and great sound...whereas in London with rain and salt on the roads the stock ones last only 3 years.
Saw this twin exhaust last mont, don't know the make , but looks stealthy.
Gass silver machine GTS 250
How do you like those rear crash bars. I think they are FA or Falco?
@yellow300gts avatar
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300 GTS supertech HPE
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@yellow300gts avatar
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UTC quote
gass wrote:
Hi I'm a PM tuning fan... Have one on my GTSand RT$ and have lasted me fro 12 years and 15 years... Oomphy and great sound...whereas in London with rain and salt on the roads the stock ones last only 3 years.
Saw this twin exhaust last mont, don't know the make , but looks stealthy.
Gass silver machine GTS 250
the make is Remus dual flow, i have the one in stainless as i ride in snow and salt.
sounds goood tho.....
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Love the look of the Remus Dual flow! They are expensive I believe. Around $600-$700? Anyone seen a better price? Thanks

You have the Homologated version?
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another unusual choice (yeah, not a gts)
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2023 GTS 300 Supertech
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Location: Ottawa Canada
 
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UTC quote
Ok do tell me…is it really worth over 10% of the total cost of my 2023 GTS scooter TO BUY THIS?

https://www.scooterwest.com/2021-hpe-black-akrapovic-gts-gtv-super-250-300-performance-exhaust-muffler-coming-soon.html
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TheBrentBeatty wrote:
Ok do tell me…is it really worth over 10% of the total cost of my 2023 GTS scooter TO BUY THIS?

https://www.scooterwest.com/2021-hpe-black-akrapovic-gts-gtv-super-250-300-performance-exhaust-muffler-coming-soon.html
The scooter west ad copy says this: "As if giving it balls weren't enough, visually the Akrapovic are simply a work of art."

Hard to place a value on these attributes!
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UTC quote
Billrush wrote:
The scooter west ad copy says this: "As if giving it balls weren't enough, visually the Akrapovic are simply a work of art."

Hard to place a value on these attributes!
🤔
⬆️    About 1 month elapsed    ⬇️
@vespian avatar
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2022 GTS 300
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UTC quote
TheBrentBeatty wrote:
Ok do tell me…is it really worth over 10% of the total cost of my 2023 GTS scooter TO BUY THIS?

https://www.scooterwest.com/2021-hpe-black-akrapovic-gts-gtv-super-250-300-performance-exhaust-muffler-coming-soon.html
To me, the value of everything is gauged individually. I feel it's worth it to drop some scooter weight and have a different look and sound. I am considering adding this updated model exhaust to my 2022 GTS, I just need to change the header pipe to the Euro 5 std, which is available too. This costs some money for sure, like all good things.
Anyone know if changing the header and installing this new model Akropovic might cause any running issues on a 2022 US model GTS?
⬆️    About 2 months elapsed    ⬇️
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UTC quote
spower wrote:
Hello friends, I want to share with you my purchase of a replica Akrapovic muffler for my Vespa GTS 300.
Because as a motorcycle mechanic I went through a lot of mufflers of different brands: Yoshimura, Arrow, Leo Vince, Scorpion..
I decided to take a risk and order this vespa muffler to see what the quality is and whether it is worth it.
Many of you would probably reproach me that I did wrong, but as we all know, even the new Vespa HPEs are made in China.
The muffler came very well packaged, and the kit includes everything you need for installation. I asked the merchant to brand him with Akrapovic. It looks very well made.
I have yet to mount it on the scooter.
In addition, I want to say that the Chinese also offer a cat for this type of sports muffler. It is mounted at the beginning of the muffler.
I also made a video with unboxing. If you decide you can see it.

With considerable trepidation, I ordered this muffler. It arrived today about week early. Cost about $140.00 including shipping. Very well packed. Not a scratch. Looks quality. Arrived in 7 days!

Now to find if it fits, though it looks like it will "slip on"

It fit and was easy to install. Here is how it looks and sounds:

https://youtube.com/shorts/ZDxWAhHggpU?feature=share
Chinese made Scorpiovic..
Chinese made Scorpiovic..
Mid pipe.  Do not plan to use the part which directly attaches to the manifold.  This is how the poster above did it.  Much easier if it works.
Mid pipe. Do not plan to use the part which directly attaches to the manifold. This is how the poster above did it. Much easier if it works.
⚠️ Last edited by Billrush on UTC; edited 3 times
@motovista avatar
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UTC quote
SteelBytes wrote:
I added a malossi lambda emulator when adding my arrow exhaust. made zero performance different so remvoed it.
Do you know what it does?
The Lambda Emulator is one of the most misunderstood tuning parts offered by Malossi.

The stock GTS tries to maintain an air fuel ratio around 14.7:1, which is best for emissions, but not for performance or engine longevity.
The Malossi Lambda emulator lies to the ecu so it richens the mixture to around 12:1, which is better for the engine, and better for performance. The ecu only listens to the o2 sensor on a Piaggio scooter until about 6000 rpms, so above that, it doesn't do anything.
Most people who think they don't work aren't sure what they are supposed to do, and when they don't make the vehicle suddenly able to wheelie, think they do nothing. What you will notice is that the bike will run cooler, idle and take off smoother, and have more low end pickup. But it's subtle. If you pound the bike hard, then come to a stop, the bike will idle smoother, and take off better. In addition, the combustion chamber will be cooler, and cool faster.
Make sure to disconnect the battery for at least half an hour when you install one.
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UTC quote
Motovista wrote:
Do you know what it does?
The Lambda Emulator is one of the most misunderstood tuning parts offered by Malossi.

The stock GTS tries to maintain an air fuel ratio around 14.7:1, which is best for emissions, but not for performance or engine longevity.
The Malossi Lambda emulator lies to the ecu so it richens the mixture to around 12:1, which is better for the engine, and better for performance. The ecu only listens to the o2 sensor on a Piaggio scooter until about 6000 rpms, so above that, it doesn't do anything.
Most people who think they don't work either aren't sure what they are supposed to do, and when they don't make the vehicle suddenly able to wheelie, think they do nothing. What you will notice is that the bike will run cooler, idle and take off smoother, and have more low end pickup. But it's subtle.
Make sure to disconnect the battery for at least half an hour when you install one.
I have an emulator for my HPE and didn't get better 0-40kph or 0-60kph which are my basic measurements so I removed it. What I never got around to testing properly is 20-40 and 20-60 as they might have shown a difference.

Interesting about the running cooler - might install it again ...
@motovista avatar
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UTC quote
What you're looking for is smoothness off the bottom. Once it gets to 6K rpm, no matter the speed, the ecu ignores it. So when you open the throttle and the engine races up past 6K rpms to accelerate, it's not going to affect anything.
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