Cat delete + slip-on = close to full system?

MirinNinja · April 28th, 2014, 04:34 PM

So I already have a 2Bros slip-on but I want to squeeze a bit more power out of it now that it's a dedicated trackie. Instead of spending money to get a full system, how close to a full system would getting a muffler shop to delete the cat be?

P.S. I will also be adding the stardard air filter upgrade/PC5 to it as well.

alex.s · April 28th, 2014, 04:42 PM

https://www.ninjette.org/forums/showthread.php?t=122220

do it. then run it on a dyno. and post the dyno chart here please.

misfitsailor · April 28th, 2014, 05:44 PM

Even if you were to cut out the front cat and weld a plain tube there, the diameter of the headers is larger on an aftermarket system. At least it is on my Yoshi.

kbryant · April 28th, 2014, 06:38 PM

Quote:

Originally Posted by MirinNinja

So I already have a 2Bros slip-on but I want to squeeze a bit more power out of it now that it's a dedicated trackie. Instead of spending money to get a full system, how close to a full system would getting a muffler shop to delete the cat be?

P.S. I will also be adding the stardard air filter upgrade/PC5 to it as well.

Hi John - This is a post from July 2013 of essentially that question. Link here to thread -
https://www.ninjette.org/forums/show...777#post718777

Quote:

Originally Posted by kbryant

We did actually test this. It simply was not worth posting any info about it. No matter how hard we tried, the only significant difference is sound and a slight reduction in radiant heat. We even tested it with the Slip-On. If you can truly feel that slight difference in low-end, you are a human dyno my friend.

Honestly, there is more power increase by simply re-mapping.

April 28th, 2014, 04:34 PM	#1
MirinNinja ninjette.org member Name: John Location: Australia Join Date: Feb 2014 Motorcycle(s): Ninja 300 Posts: 48	Cat delete + slip-on = close to full system? So I already have a 2Bros slip-on but I want to squeeze a bit more power out of it now that it's a dedicated trackie. Instead of spending money to get a full system, how close to a full system would getting a muffler shop to delete the cat be? P.S. I will also be adding the stardard air filter upgrade/PC5 to it as well.

April 28th, 2014, 04:42 PM	#2
alex.s wat Name: wat Location: tustin/long beach Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much. Blog Entries: 5 MOTM - Oct '12, Feb '14	https://www.ninjette.org/forums/showthread.php?t=122220 do it. then run it on a dyno. and post the dyno chart here please. __________________________________________________

April 28th, 2014, 05:44 PM	#3
misfitsailor Ninjette Jockey Name: Tim Location: Stockton, Ca Join Date: Oct 2010 Motorcycle(s): Ninja 250R, Harley Davidson Heritage Softail, 2 Honda Monkeys, Polini & GRC mini GP Posts: A lot. Blog Entries: 3	Even if you were to cut out the front cat and weld a plain tube there, the diameter of the headers is larger on an aftermarket system. At least it is on my Yoshi. __________________________________________________ For what shall it profit a man, if he shall gain the whole world, and lose his own soul?.

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