Removing cat - SV650.org

DomP · 07-02-17, 09:11 PM

I fitted a Fuel end can to my pointy last year but left the cat in just in front of the connecting pipe. If I rip it out will it alter my exhaust note at all? I've decated cars before and it makes quite a difference.

ophic · 07-02-17, 09:56 PM

Yeah it won't meow quite so much.

Oh come on, someone had to.

I have an 03 pointy with oval fuel can and obviously no cat. I'd post a sound clip but I always find exhaust recordings sound nothing like the real thing.

DomP · 07-02-17, 10:06 PM

Nice dad joke! Well that's what I always get told when I come out with them.

Mine is an oval stubby too which sounds really rumbly but more rumble would never be a bad thing.

ophic · 08-02-17, 07:27 AM

Quote:

Originally Posted by DomP

Nice dad joke!

Touché!

I would imagine the cat would muffle the highs so removing it might release more crackle and bark rather than affect the rumble or boominess. Total conjecture tho.

aesmith · 08-02-17, 12:15 PM

Would removing the catalyst mean an MOT fail, or isn't this tested?

carelesschucca · 08-02-17, 12:35 PM

Depends on the tester, if you find a nice decent MOT tester they won't fail the bike...

I know mines is mad about bikes and quite likes my arrow cans

suppose that's different to removing the cat.

Bibio · 08-02-17, 01:22 PM

i left the cat in mine and a few folk comment on how nice the bike sounds

DomP · 08-02-17, 05:39 PM

Might just leave it in there then, just trying to think of a cheap or free mod to do that I haven't already- lighter evenings are fueling my desire to tinker!

11-02-17, 05:46 AM

Quote:

Originally Posted by aesmith

Would removing the catalyst mean an MOT fail, or isn't this tested?

Motorcycle MOT's don't include an emissions test at the moment, so removing the CAT won't make any difference.
Some testers don't like race cans, depends how friendly they are!

07-02-17, 09:11 PM	#1
DomP Member Join Date: Oct 2014 Location: Kington Herefordshire Posts: 916	Removing cat I fitted a Fuel end can to my pointy last year but left the cat in just in front of the connecting pipe. If I rip it out will it alter my exhaust note at all? I've decated cars before and it makes quite a difference.

07-02-17, 09:56 PM	#2
ophic Member Mega Poster Join Date: Jan 2004 Location: Whyteleafe Posts: 3,395	Re: Removing cat Yeah it won't meow quite so much. Oh come on, someone had to. I have an 03 pointy with oval fuel can and obviously no cat. I'd post a sound clip but I always find exhaust recordings sound nothing like the real thing. __________________ Silver SV650SK3, Fuel exhaust

07-02-17, 10:06 PM	#3
DomP Member Join Date: Oct 2014 Location: Kington Herefordshire Posts: 916	Re: Removing cat Nice dad joke! Well that's what I always get told when I come out with them. Mine is an oval stubby too which sounds really rumbly but more rumble would never be a bad thing.

08-02-17, 12:15 PM	#5
aesmith Member Join Date: Mar 2013 Location: Aberdeenshire Posts: 966	Re: Removing cat Would removing the catalyst mean an MOT fail, or isn't this tested?

08-02-17, 12:35 PM	#6
carelesschucca Member Mega Poster Join Date: Oct 2003 Location: Kilsyth - Bonnie Scotland Posts: 2,727	Re: Removing cat Depends on the tester, if you find a nice decent MOT tester they won't fail the bike... I know mines is mad about bikes and quite likes my arrow cans suppose that's different to removing the cat. __________________ Innuendo - it's great when you get it. sv650s (gone) gsx-r600 (gone) Street R675 (now living in Inbhir Nis )

08-02-17, 01:22 PM	#7
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,541	Re: Removing cat i left the cat in mine and a few folk comment on how nice the bike sounds

08-02-17, 05:39 PM	#8
DomP Member Join Date: Oct 2014 Location: Kington Herefordshire Posts: 916	Re: Removing cat Might just leave it in there then, just trying to think of a cheap or free mod to do that I haven't already- lighter evenings are fueling my desire to tinker!

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