Old 25th January 2019, 04:45 PM #1
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Re-map or not?

Lads,

Looking for some advice. I bought a Bodis decat pipe for the bike.
When buying it I assumed that I'll have to get it re-mapped.
I've since read that with the Bodis, no re-map is needed, due to the fact that it's not a 'straight through' pipe but a bendy one, which builds back pressure. Then of course there was other folks that scoffed this theory and insisted that a re-map was needed. Some folks swore blind that it 'made all the difference'. So I emailed Bodis and they said:

"Hi Paddy.

With our exhausts and the original exhaust lambda-results on test-bench had been fine.

We did not measure any other exhaust.

Mit freundlichem Gruß/Best Regards

Dieter

Dieter Wolter

Geschäftsführer

Speer Racing Parts GmbH

Wannweilerstrasse 65

72770 Reutlingen

Deutschland"

So, I'm leaning towards no re-map, am I missing something?

[IMG][/IMG]

[IMG][/IMG]
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Old 25th January 2019, 05:44 PM #2
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Re: Re-map or not?

It might seem fine but your missing the benefits of a decat without a remap.
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Old 25th January 2019, 05:49 PM #3
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Re: Re-map or not?

The purest types will always insist ya dyno any bike after fitment of an aftermarket exhaust. The bolt on bling and tat crew will say no need. What I get from your reply from the manufacturer - is non commitment either way. The bottom line would seem to be what are your values. Delighted to have been no help to ya whatsoever.

If it was me and Id the readys, a re-map it would be.
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Old 25th January 2019, 06:24 PM #4
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Re: Re-map or not?

Going by that then it's a decat pipe
that doesn't do what a decat pipe does
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Old 25th January 2019, 06:31 PM #5
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Re: Re-map or not?

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Originally Posted by dec c View Post
Going by that then it's a decat pipe
that doesn't do what a decat pipe does
No it does exactly what it's meant to do. Remove the cat.

Changing from a exhaust to Abit more freer is not a massive difference.

Removing a cat makes a huge difference to exhaust flow. Too much of a difference to not need a remap
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Old 25th January 2019, 06:47 PM #6
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Re: Re-map or not?

Quote:
Originally Posted by corkgsxr View Post
No it does exactly what it's meant to do. Remove the cat.

Changing from a exhaust to Abit more freer is not a massive difference.

Removing a cat makes a huge difference to exhaust flow. Too much of a difference to not need a remap
That's what I'm saying.
Too fucking stoned to be explaining shite at the moment
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Old 25th January 2019, 07:07 PM #7
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Re: Re-map or not?

A remap will make all the difference...not like it needs it,they’re an insane machine.
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Old 25th January 2019, 09:34 PM #8
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Re: Re-map or not?

all bikes generally respond well to remaps anyway if they're still in stock fueling. with all the regulations on sound and emmisions i would think a remap would make a stock bike respond better let alone a system that has had a cat removed.
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Old 25th January 2019, 11:21 PM #9
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Re: Re-map or not?

Yeah I knew it was too good to be true so I'm not taking any chances. Re-map it is so.

Whatever about sound or performance gains, the most impressive and surprising part is the difference in weight! I was genuinely shocked when I removed the cat off the bike, fucking thing weighs a ton! Really notice the difference with it gone. I've never bothered with stuff like this before, just got on with riding the bikes but holy shit, money well spent
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Old 28th January 2019, 07:56 AM #10
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Re: Re-map or not?

Was thinking about a decat myself , was there much to it ?
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Old 28th January 2019, 08:48 AM #11
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Re: Re-map or not?

Since you're keeping the lambda, the bike can sort out the fuel/air mixture and keep running fine without the cat.

But, as the lads mentioned, you now have much more airflow which can generate more power so a remap be advantageous. OEM maps are usually conservative and try to go for reliability and mpg over the full potential of the engine.

So yeah, bike will run just fine without it but you'll have no gains. If you want more than sound, remap :)
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Old 28th January 2019, 07:41 PM #12
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Re: Re-map or not?

Quote:
Originally Posted by StarBoy View Post
Was thinking about a decat myself , was there much to it ?
Doddle, 20 minute job. Whip off the exhaust, two clamps either side of the cat and then it's just a straight swap. Fit and finish were perfect. No need to go near the Lambda sensor. That being said there is no butterfly valve in the exhaust on the 2016 SD-R. I believe the 2017 on-wards have a servo controlled valve in there that has to have the cables and/or wiring removed.

Bought from this crowd, very easy to deal with:

https://www.bodis-exhaust.com/index.php?site=18&lang=en
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Old 28th January 2019, 07:41 PM #13
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Re: Re-map or not?

Quote:
Originally Posted by RTV View Post
Since you're keeping the lambda, the bike can sort out the fuel/air mixture and keep running fine without the cat.

But, as the lads mentioned, you now have much more airflow which can generate more power so a remap be advantageous. OEM maps are usually conservative and try to go for reliability and mpg over the full potential of the engine.

So yeah, bike will run just fine without it but you'll have no gains. If you want more than sound, remap :)
Food for thought, thanks for the advice.
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Old 28th January 2019, 10:23 PM #14
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Re: Re-map or not?

Quote:
Originally Posted by PADDYOT View Post
Doddle, 20 minute job. Whip off the exhaust, two clamps either side of the cat and then it's just a straight swap. Fit and finish were perfect. No need to go near the Lambda sensor. That being said there is no butterfly valve in the exhaust on the 2016 SD-R. I believe the 2017 on-wards have a servo controlled valve in there that has to have the cables and/or wiring removed.

Bought from this crowd, very easy to deal with:

https://www.bodis-exhaust.com/index.php?site=18&lang=en
Looks great ! Where will you get the map from ? Looked at the website they only specified link pipe for a 2016 GT ( mine's 18). It has the servos etc. and probably a pain in the rocks to sort. That said I really like the look of the set up.
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Old 28th January 2019, 10:51 PM #15
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Re: Re-map or not?

Quote:
Originally Posted by StarBoy View Post
Looks great ! Where will you get the map from ? Looked at the website they only specified link pipe for a 2016 GT ( mine's 18). It has the servos etc. and probably a pain in the rocks to sort. That said I really like the look of the set up.
That's another thing I'm trying to decide on. Would like to bring it to my local, the folks in RPM in Drogheda. Top outfit but very busy so will likely have to book it in soon to avoid a long wait for Dyno time. Failing that I think mototuning would be the next port of call. Time to break open the piggy bank.

There's more than likely a few youtube clips out there for doing the same job on the GT. Bodis were very quick to respond to emails, maybe ask them what the story is with the 2018 model? Let us know if you decide to go ahead and how you fare.
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Old 29th January 2019, 08:16 AM #16
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Re: Re-map or not?

Mototuning.ie con definitely sort you out.

If they know the exhaust, you can just send them the ECU and they'll re-map it. If you want the full custom experience and dyno time, you have to go to them.

They did my MT09 and happy out with the results.
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Old 29th January 2019, 11:51 AM #17
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Re: Re-map or not?

Quote:
Originally Posted by RTV View Post
Since you're keeping the lambda, the bike can sort out the fuel/air mixture and keep running fine without the cat.

But, as the lads mentioned, you now have much more airflow which can generate more power so a remap be advantageous. OEM maps are usually conservative and try to go for reliability and mpg over the full potential of the engine.

So yeah, bike will run just fine without it but you'll have no gains. If you want more than sound, remap :)
Not necessarily. If you go outside the allowed factory fuel trims it won't adjust it near enough.

That's more for going between hot weather in the Alps to cold weather 1000 feet lower or that sort of crack
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Old 29th January 2019, 10:47 PM #18
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Re: Re-map or not?

Quote:
Originally Posted by PADDYOT View Post
That's another thing I'm trying to decide on. Would like to bring it to my local, the folks in RPM in Drogheda. Top outfit but very busy so will likely have to book it in soon to avoid a long wait for Dyno time. Failing that I think mototuning would be the next port of call. Time to break open the piggy bank.

There's more than likely a few youtube clips out there for doing the same job on the GT. Bodis were very quick to respond to emails, maybe ask them what the story is with the 2018 model? Let us know if you decide to go ahead and how you fare.
Will do
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Old 30th January 2019, 08:20 AM #19
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Re: Re-map or not?

This is cat
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Old 30th January 2019, 12:21 PM #20
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Re: Re-map or not?

Quote:
Originally Posted by corkgsxr View Post
Not necessarily. If you go outside the allowed factory fuel trims it won't adjust it near enough.

That's more for going between hot weather in the Alps to cold weather 1000 feet lower or that sort of crack
I would agree if you go with a straight pipe or something very extreme, but in this case the exhaust manufacturer told OP that it has been tested and it's OK.
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Old 30th January 2019, 04:42 PM #21
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Re: Re-map or not?

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Originally Posted by RTV View Post
I would agree if you go with a straight pipe or something very extreme, but in this case the exhaust manufacturer told OP that it has been tested and it's OK.
Yoshi say mine will be fine too and it wasn't. There interest is selling
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Old 28th March 2019, 09:45 PM #22
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Re: Re-map or not?

So, just in case someone googles this some day and are left wondering if the re-map was ever done......

There was a general failure warning on the bike ever since I tried to turn on the heated grips (which it transpired, weren't actually fitted ). I popped into M50 Honda/KTM in Ballymount a few weeks ago and rather cheekily asked them to reset the warning message on the dash (I bought my bike from a dealer in the UK). "No problem". I was advised that there was an outstanding recall due on the front brake master cylinder, which they offered to complete under warranty. Dropped the bike into them today for the recall and got them to download the Akra/decat map while they were at it.

I didn't notice any performance gains after fitting the decat pipe at Christmas, although the reduction in weight was very noticeable. After the re-map today it's a completely different bike!! Holy shit. To say I'm impressed would be a gross understatement Smoother response rolling on from a closed throttle at low speed, midrange vastly improved, top end of the rev range feels about the same as before. The whole connection between the throttle and the engine is so much smoother, crisper, better.

So to summarise, yes a remap is most definitely the way to go....
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Old 28th March 2019, 10:53 PM #23
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Re: Re-map or not?

Quote:
Originally Posted by PADDYOT View Post
So, just in case someone googles this some day and are left wondering if the re-map was ever done......

There was a general failure warning on the bike ever since I tried to turn on the heated grips (which it transpired, weren't actually fitted ). I popped into M50 Honda/KTM in Ballymount a few weeks ago and rather cheekily asked them to reset the warning message on the dash (I bought my bike from a dealer in the UK). "No problem". I was advised that there was an outstanding recall due on the front brake master cylinder, which they offered to complete under warranty. Dropped the bike into them today for the recall and got them to download the Akra/decat map while they were at it.

I didn't notice any performance gains after fitting the decat pipe at Christmas, although the reduction in weight was very noticeable. After the re-map today it's a completely different bike!! Holy shit. To say I'm impressed would be a gross understatement Smoother response rolling on from a closed throttle at low speed, midrange vastly improved, top end of the rev range feels about the same as before. The whole connection between the throttle and the engine is so much smoother, crisper, better.

So to summarise, yes a remap is most definitely the way to go....
To summarise... EVERY (fuel injected) bike needs a remap. They're supplied with a 'one-size-fits-all' map, which spans too many variables. It facilitates (see 'compromises') anything from below freezing at low pressures in mountain regions to sea level pressures at desert temperatures.
A remap should be on everyone's Christmas list.
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Old 1st April 2019, 12:11 AM #24
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Re: Re-map or not?

Quote:
Originally Posted by PADDYOT View Post
So, just in case someone googles this some day and are left wondering if the re-map was ever done......

There was a general failure warning on the bike ever since I tried to turn on the heated grips (which it transpired, weren't actually fitted ). I popped into M50 Honda/KTM in Ballymount a few weeks ago and rather cheekily asked them to reset the warning message on the dash (I bought my bike from a dealer in the UK). "No problem". I was advised that there was an outstanding recall due on the front brake master cylinder, which they offered to complete under warranty. Dropped the bike into them today for the recall and got them to download the Akra/decat map while they were at it.

I didn't notice any performance gains after fitting the decat pipe at Christmas, although the reduction in weight was very noticeable. After the re-map today it's a completely different bike!! Holy shit. To say I'm impressed would be a gross understatement Smoother response rolling on from a closed throttle at low speed, midrange vastly improved, top end of the rev range feels about the same as before. The whole connection between the throttle and the engine is so much smoother, crisper, better.

So to summarise, yes a remap is most definitely the way to go....
Result!! What did they charge you if you don't mind ?
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