Best full exhaust system with bags?

3940 Views 156 Replies 12 Participants Last post by ggetzoff, 13 d ago

Redlinez

Discussion Starter · 2 mo ago

I am about done waiting for a decent low mount system (not interested in M4). Are there a couple that are far enough below the bag? I guess I can put some kind of heat tape on it. I don’t use them often, but I want to make sure I don’t have to worry about melting it. I also have noticed bikes make more power with a full exhaust with a longer muffler and I don’t have to worry with it being too loud. Thanks for any input. Considering Lextek and Delkevic. Yoshimura would be on the high end price wise.

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Redlinez

Discussion Starter · #121 · 1 mo ago

Here's another one from webbike Japan. r's gear : Real Spec Titanium Full Exhaust System Single Type [RS16-01RT]

871JZ

· #122 · 1 mo ago (Edited)

Redlinez said:
Here's another one from webbike Japan. r's gear : Real Spec Titanium Full Exhaust System Single Type [RS16-01RT]

That one has an underbody primary muffler/resonator and a catalytic converter for the guys who want an aftermarket exhaust, but don't want to decat their bike for whatever reason. It also appears to have an integrated exhaust valve for the guys who want to keep that, too. Those three things are probably going to make it one of the quietest full exhaust systems available. It's the only aftermarket system I've ever seen that has an exhaust valve. At least I'm assuming that's what it is...

Catalytic converter:

Microphone Liquid Office supplies Cylinder Automotive lighting

What I believe is an exhaust valve:

Automotive exhaust Rim Bicycle part Nickel Auto part

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Redlinez

Discussion Starter · #123 · 1 mo ago

Yea, I saw all that. Definitely the only one like it.

Reactions: 1

FreePenguiny

· #124 · 1 mo ago

Don’t see a point. Weird to even waste material on it

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871JZ

· #125 · 1 mo ago

FreePenguiny said:
Don’t see a point. Weird to even waste material on it

You mean offering a system with all the factory noise/emissions control devices in place? If so, I agree. Kind of interesting, but still pointless.

Reactions: 1

ggetzoff

· #126 · 1 mo ago

BMW employs a servo in the cross pipes as well.

This is certainly an interesting product. But, as you already said, these bikes have so much power that all of the academic “toys” of exhaust tuning are mostly just that: this k5 derived motor has insane power for everyday riding.

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871JZ

· #127 · 30 d ago

ggetzoff said:
BMW employs a servo in the cross pipes as well.

This is certainly an interesting product. But, as you already said, these bikes have so much power that all of the academic “toys” of exhaust tuning are mostly just that: this k5 derived motor has insane power for everyday riding.

That great power is a big part of why it's so fun to ride!

Reactions: 1

temporarykiwi

· #128 · 29 d ago

871JZ said:
@temporarykiwi

I've noticed from some of your posts that you seem to have a good handle on the potential gains (or lack thereof) with different exhaust systems on our bikes. What do you think of the design elements implemented here with this West Power titanium system? Do you think it's a well designed system and what are your thoughts as far as whether or not it would offer good or bad overall performance gains?

its very difficult to rate an exhaust from a picture. ...but. the gsx eng does respond well to longer secondary pipes, and a longer tailpipe, as those aid in applying extra ex gas extraction by boosting vacume on the cyl, they need to maintain good flow and ex gas speed to do this well, crudely formed bends, and collectors disperse that effect greatly, as will a poorly designed muffler, the looping feature is a means to retain exhaust lengths while keeping the current facination with stubbie hidden exhaust systems, so id say until dyno testing b4/after its hard to say

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ggetzoff

· #129 · 29 d ago

Since this is the “with bags” thread one thing to consider is that any short exhaust and or angled slip-on could cause the right bag to resonate. I say MAY as I don’t know. But, just another + for a longer system, that hangs at a lower angle. Of course heat is also a factor, as had been said.

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Redlinez

Discussion Starter · #130 · 29 d ago

I originally was only going to consider a "low mount" style exhaust because of my bags. After seeing such a difference in power with a full length system and the few times I use my bags, I'm going with a full length one. I'll just get some heat shielding for the bottom of that bag for when I do use it. I'm about 95% sure I'm going with a Dominator system. They have about the longest secondaries, appear to be great quality, they disclose the DB levels, and are extremely well priced.

aztrex08

· #131 · 27 d ago

Redlinez said:
I originally was only going to consider a "low mount" style exhaust because of my bags. After seeing such a difference in power with a full length system and the few times I use my bags, I'm going with a full length one. I'll just get some heat shielding for the bottom of that bag for when I do use it. I'm about 95% sure I'm going with a Dominator system. They have about the longest secondaries, appear to be great quality, they disclose the DB levels, and are extremely well priced.

I am want the HP8 low black system that is for the previous gen bike. I do not like the one for the GT. Silver with the bracket for the heat shield. Dominator says the previous gen system will not fit and the do not offer the black/carbon can for the GT. Thoughts? Are they wrong about the fitment? Is it just the spacers?

Redlinez

Discussion Starter · #132 · 27 d ago

I think they are wrong as all the other companies prev gen exhaust work from what I’ve seen. I noticed they include a db reducer with the newer system.

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871JZ

· #133 · 27 d ago

aztrex08 said:
I am want the HP8 low black system that is for the previous gen bike. I do not like the one for the GT. Silver with the bracket for the heat shield. Dominator says the previous gen system will not fit and the do not offer the black/carbon can for the GT. Thoughts? Are they wrong about the fitment? Is it just the spacers?

I do not believe they are correct about the system for the previous generation not fitting the GT. I've seen a few guys who have fit systems marketed as being for the old bikes on the new bikes (naked and GT). Did you inquire about what they say is different between the two or why their old system won't work on the GT?

Redlinez

Discussion Starter · #134 · 27 d ago

I did and they told me they are different, but he couldn’t tell me why. I left it at that.

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Redlinez

Discussion Starter · #135 · 20 d ago

Where would you see the difference with headers that have the center two pipes joined and outer two pipes joined versus headers that have no crossover pipes?

871JZ

· #136 · 20 d ago

Redlinez said:
Where would you see the difference with headers that have the center two pipes joined and outer two pipes joined versus headers that have no crossover pipes?

I understand the theory behind what the crossover tubes joining the primaries are supposed to do. Whether or not there's any actual benefit to performance that would be noticeable on the dyno in terms of peak power output and/or where in the RPM band the power is made, I can't say. The OEM headers do have them, so it's probably best to retain them when choosing an aftermarket header, IMO. Although, it seems most aftermarket headers do not include them in their design for some reason.

I originally installed Lextek headers which do not have the crossover tubes. I then switched to Arrow headers, which do have the crossovers. Running the same Akrapovic slip-on with both headers, the only difference I noticed was in the sound of the exhaust note. To my ear, the Arrow header produced a better/cleaner/deeper sound. Whether that difference in sound was due to the crossover tubes, the larger diameter tubing used throughout the system, or a combination of both, I cannot say.

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ggetzoff

· #137 · 20 d ago

The dimensions between the two mounting brackets and the four in one is the problem: the exhaust valve was relocated to the rear and that is what he may be thinking.

You can certainly make it work but you may have to move a bracket. That would be worse case which I don’t think even that is necessary. Call Chris Moore and ask him what he had to do using an “S” system with the Gt. He mentioned a bracket.

I did multiple cuts and measurements for the link pipe designed for the “S” and they were not the same. However, I did a completely custom fit for it to hang on the stock points. Brackets are easy and anything can me made to work if indeed necessary.

871JZ

· #138 · 20 d ago

ggetzoff said:
The dimensions between the two mounting brackets and the four in one is the problem: the exhaust valve was relocated to the rear and that is what he may be thinking.

You can certainly make it work but you may have to move a bracket. That would be worse case which I don’t think even that is necessary. Call Chris Moore and ask him what he had to do using an “S” system with the Gt. He mentioned a bracket.

I did multiple cuts and measurements for the link pipe designed for the “S” and they were not the same. However, I did a completely custom fit for it to hang on the stock points. Brackets are easy and anything can me made to work if indeed necessary.

I'm not sure which two mounting brackets you're referring to. Same with the four in one. The Dominator isn't a four into one system, if that's what you're talking about. Also, the relocating of the exhaust valve shouldn't matter because it gets eliminated with the full system.

ggetzoff

· #139 · 15 d ago

871JZ said:
I'm not sure which two mounting brackets you're referring to. Same with the four in one. The Dominator isn't a four into one system, if that's what you're talking about. Also, the relocating of the exhaust valve shouldn't matter because it gets eliminated with the full system.

The hanger spacing was wrong when I used the link pipe for the previous gen “S”, there simply wasn’t enough length after the hanger to reach the stock slip on location. Also, the reference point to cut the header was not the same. That’s all I’m saying. It of course can be made to work, it just requires some modding.

notice the length after the hanger on the precious gen:

www.blackwidowexhausts.co.uk

GSX-S 1000 F De-Cat Headers Downpipes Race Pipes

Performance De-cat Race exhaust headers Fits SUZUKI GSX-S1000 & GSX-S 1000 F 2015, 2016, 2017, 2018, 2019, 2020, 2021

www.blackwidowexhausts.co.uk

ggetzoff

· #140 · 15 d ago

Then notice the length with the current GT / S after the hanger:

www.blackwidowexhausts.co.uk

GSX-S 1000 GT 2021 - 2023 Performance Exhaust De-Cat Downpipes Headers

Performance Exhaust Headers Fits SUZUKI GSX 1000 GT 2021-2023 Our latest release from the Black Widow Performance Department. Bring your GSX-S

www.blackwidowexhausts.co.uk

That corresponds with what I experienced and why Dominator states the the previous gen will not work.

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