exhaust and remapping - KTM Forums: KTM Motorcycle Forum
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post #1 of 59 (permalink) Old 12-15-2016, 11:14 PM Thread Starter
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exhaust and remapping

So for a few months now i have been tryting to decide on an exhaust upgrade and i've come to the conclusion that it needs to happen. however i have a few questions. i would appreciate any knowledge or insight you could share with me/us.

1. so i've decided to go with the Austin racing (AR) high slung gp1 can and mid pipes. how ever i dont think im going to buy the $1900 pipe that connects to the headers. is it foolish to not buy the header pipes? i was told that the amount of airflow you gain is minimal and your really only gain weight savings (i weigh 300lbs in my eyes it would be stupid to spend $1900 on a header pipe that would reduce my bikes weight by a few lbs)

2. i have been told that buying a can and a mid pipe that is a "decat" is considerd a full system, is that true and if so should i remap my bike? i plan on leaving the db killer and baffle installed. is it stupid to buy a exhaust and mid pipe and not remove the baffle and remap it.

3. i know very little on remapping however the information i could find from internet / calling ktm dealers is that there are two ways to remap. a ktm flash, and doing some sort of "power commander" would it be wise to remap the bike with just the decat can installed and mid pipes? if i go this route do i need to remove the sas? im looking for the bike to run its best i dont want to half *** this and let my bike run lean or rich.

4. if i do end up remapping the bike is there anyway i can do that safley without a dyno (or is a dyno needed to optimise the ratio?) if i go this far should i install a rott intake? i guess what im asking is at what point do i need to remap and should i do an intake aswell..? i relize i will need a power commander to remap via a dyno. what type of powercommander should i use? are auto tuners worth it? once i remap the bike is there things i need to change/ update/ check every few months?

my reasoning for buying an exhaust is becuase i think the stock exhaust is a joke especially for a 18k bike. i want the bike to run great and sound amazing. im not necessarily looking to pinch every ounce of power that i can get out of the bike. its fast enough i just want to know whats the best way to go about a decat exhaust upgrade. id prefer to not spend upwards of 5k to make the bike sound good and run good but i dont want to do more harm then good :/

thank you for whatever light you can shed on this topic.
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post #2 of 59 (permalink) Old 12-16-2016, 07:34 AM
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Ok, first keep stock header pipes,just do a decat,and remove db killer in stock can(unless u want to spend $500+ on a can that doesn't improve performance and only removes about 3lbs) then u can remove emissions & add fuel dongles,or u can go pcv and download one of there maps to start.
It all depends on what u are looking for in regards to performance and how much u want to spend.
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post #3 of 59 (permalink) Old 12-16-2016, 04:54 PM Thread Starter
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okay so what your saying is i should do a decat system (AR can / mid pipes) remove the sas and add a pcv with a predownloaded map for the system and it wil be fine the bike will run with a proper fuel to air ratio for the added air flow? (i hate the stock can)
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post #4 of 59 (permalink) Old 12-16-2016, 05:32 PM
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Arrow can with an arrow mid pipe,ok,pcv comes with fuel dongles,SAS will eliminate popping
All good...There is a free map u can get from Powercommander that will work (#3) ....AFR's
Should be fine....I did similar mods ,but used a Remus decat and just removed the db killer in stock can, and used #3 map....quite honestly u can just use the KTM full akra re flash (installed by your dealer),and ar can& mid-pipe,I did just those mods initially and did a dyno to check afr 's and they were ok....if you intend add a rotty air box u should use the pcv with a "Kev map".
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post #5 of 59 (permalink) Old 12-18-2016, 09:01 PM Thread Starter
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what i've decided to do is the AR gp1 highslung can and mid pipes, pcv and maybe a KN air filter thats what ar reccomended
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post #6 of 59 (permalink) Old 12-19-2016, 06:59 AM
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Quote:
Originally Posted by Traviscurtis View Post
what i've decided to do is the AR gp1 highslung can and mid pipes, pcv and maybe a KN air filter thats what ar reccomended
Get a DNA filter instead it flows 20% more....u should also do a SAS, to eliminate
Decel popping.

Past rides:1970 750 honda
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1992 Suzuki GSX1100R
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2000 Suzuki Hyabusa
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post #7 of 59 (permalink) Old 12-19-2016, 09:09 AM
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The ar exhaust is different enough that I won't try and talk you out of it but if you buy one of the decat link pipes you may be surprised how nice the stock can really is. I, personally was disappointed when I swapped the Akra from stock and there was no increase in spl ant least my can was free. my bodis link pipe opened it up quite a bit and I heard a stock can with an arrow link pipe I thought was even a bit better sounding. My akra was like Drnick said 3 lbs lighter and losing the cat will lighten it up another 13 lbs if I remember correctly.
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post #8 of 59 (permalink) Old 12-19-2016, 09:26 AM
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I've done many an exhaust mod on all my jap crotch rockets,because "they needed it ",but this is the first bike I've owned, that the stock muffler/can is staying in place!,I refuse to pay
$500-$600 on something that has NO performance gain,other then u lose a couple lbs!
If you look through the stock exhaust,it's straight through! Except for the so called DB killer,it's a straight through exhaust glasspack!
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Past rides:1970 750 honda
1972 Yamaha 360 mx
1975 Honda goldwing
1979 Honda CBX
1984 Honda CR 500
1992 Suzuki GSX1100R
1996 ZX1100 Ninja
2000 Suzuki Hyabusa
2004 Yamaha YFZ450R
2006 Yamaha YZ450F
2008 Suzuki Hyabusa
2009 Suzuki DRZ400SM
2010 Kawasaki Z1000 (current)
2012 Kawasaki Concours 1400
2008 Suzuki B-King (current)
2016 KTM 1290R (current)
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post #9 of 59 (permalink) Old 12-19-2016, 12:30 PM
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I agree with the stock exhaust can being no better than an aftermarket one besides weight. But. My issue is that to open up the bikes exhaust the main hindrance is the cat. So you get rid of the cat. Now you have to do an sas delete. Now you must do a reflash. Than pick which link pipe you want. And stay with the stock can or not.
If i I touch the exhaust I might be inclined to just spend th money on the Ktm/ akrapovic package deal that was designed start to finish for this application. But the cost of that is a tad high. About $200 per horsepower. Horsepower that in my opinion is not needed for street riding.
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post #10 of 59 (permalink) Old 12-19-2016, 02:28 PM
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$200 for Remus decat,$40 for rotty fuel dongles
$50 for Akra remap flash( dealer installed),& throw in the SAS,so you don't get that annoying
Decel popping....and if your at sea level,and ambient average 70-80 temp,you should be 👌 ok😎
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Past rides:1970 750 honda
1972 Yamaha 360 mx
1975 Honda goldwing
1979 Honda CBX
1984 Honda CR 500
1992 Suzuki GSX1100R
1996 ZX1100 Ninja
2000 Suzuki Hyabusa
2004 Yamaha YFZ450R
2006 Yamaha YZ450F
2008 Suzuki Hyabusa
2009 Suzuki DRZ400SM
2010 Kawasaki Z1000 (current)
2012 Kawasaki Concours 1400
2008 Suzuki B-King (current)
2016 KTM 1290R (current)
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