Removing catalytic converter

[capecommuter]

Has anyone had their catalytic converter removed? I am considering it and had an exhaust manufacturing expert look at it. He says it is a simple process to cut it out and replace the cat with a piece of pipe. It is situated after the lambda sensor so should not affect the fuel mixture. He however suggested that I research it to see if anyone has reported any detrimental effect of removing the cat. It will be his first on an NC but has done plenty other bikes with only positive results, ie better performance.

[Machiel]

Howzit,

Have you done this yet or perhaps found out more about this?

I also want to remove the cat.

Thanks

[boerseun]

More manne

Ek sal ook like om te weet.... Machiel het jy al iets gekry op dit?
Sal dit meer voordelig wees dink julle??

dankie

[seanmc]

I know arrow do a de cat system but it costs a bit

[Cronos]

Hay everyone,

I am not sure about removing the Cat, but I do know that doing a slip on, on the end leaving the cat in place and giving it a better sound, works well. The demo I am riding at the moment has one on fitted by Honda and it works well. I am having one fitted to my new bike as well.

[capecommuter]

I am still making enquiries and it seems it will void my warranty. It expires in Jan 2015 but I may take a chance and do it soon. My exhaust guy says it won't affect the bike except to increase performance as a major restriction will be removed. The dyno-chart of the Arrow system shows a big difference with a de-cat, more than just putting on a slip-on.

[Cronos]

Please keep us posted. Will be interesting to see the change in performance. Will you also have to change the air filter when doing the exhaust?

[cpor94]

have a look at kontrolfreakz website .. the guys mention how a exhaust works and why
it needs to be de catted correctly.
btw i'm not advertizing for them
i just wanted mine done as well cost is R1600 to de cat
and R2500 for one of thier own slipons.

[davido]

I'd not decat at all. It will affect the fuel consumption and kill more trees while doing so.

If it is the loud exhaust noise you want, get a good slip-on and leave the cat in place.

If it is the manic performance you want, get a superbike!

If you want to waste fuel, make a lot of noise and get no performace in return, get a Harley

[Cronos]

Oct 2, 2014 10:55:41 GMT 2 davido said:

If you want to waste fuel, make a lot of noise and get no performace in return, get a Harley

[capecommuter]

Hi Guys

I had the Cat removed last weekend I am glad I did!! Sorry Davido but I will plant a tree or 2 to compensate!!

The ride is so smooth, throttle response much more immediate and I don't have to gear down to quickly overtake. The shudder I felt when changing to 6th gear below 100km/h is also greatly reduced. The bike just feels much more alive!! The noise factor has not changed a bit, which I am glad about, and the consumption was initially higher due to my heavy throttle-hand, but after I concentrated on riding like I always used to, my consumption is at least the same, if not better. Only the first tank so I will check over the next few to get a better impression.

Cronos... I had already put in a genuine K&N filter before the mod so I am not sure if it was necessary but it works great.

My object was to make the airflow thru the engine as efficient as possible to make the bike as economical as I can get it. The guy charged me R600 to do the job and I can highly recommend his work. If you are in Cape Town, send me a PM for his details if you are interested. Will take some photos when I take off the cowling at some stage to show the weld quality and how it was done. He only uses top quality stainless steel.

Looking down the Cat, I can't imagine how the engine used breathe properly.

Another one for the Harley guys... saw a patch on a biker's jacket recently... " I'd rather kiss a bergie than ride a Harley..."

[sl0m0]

Hi, I would be interested in doing that mod as well... PM details please.

[apollo11nc700x]

Sorry not sure if you removed your cat yet but I did too and completely agree with Capecommuters comments, I get an extra 10 - 15 KM per tank of fuel around 410 - 415 km using 95, and the better feel as mentioned at 100 Kph before and about 2900 rpm the bike would feel unhappy after CAT removal it can go to 2800 and smoothly accelerates, and there is a nice gruntier sound after CAT removal, the bike certainly revs better and goes better.

[Paul]

Hi. I had mine removed last week and added a BMC filter. I feel it has made a big difference. About a half a second quicker to 100, but the best is the pulling power between 70 to 120. Having more power on tap up the hill between Malibongwe

[Paul]

And Nicol off ramp is huge. Next up a slip on