Cat removal

[Spaggy]

I have a second gen bike and was wondering if anybody has removed or gutted their catalytic converter. If you did, what was the result?

 

[Juan]

Very misleading title

 

[Dogdaze]

Very misleading title

Snap!! I was thinking a big dog should do the trick.

 

[OldRider]

Well I got all excited when I read the subject line and thought you wanted to borrow my cat remover.

 

[greg the pole]

I've looked into this, and it's a PITA unless you are a good welder/know a good welder that owes you a favor.

I have/know neither,
so I solved it by installing the arrow headers and slip on. Job done.

 

[Jono49]

I've looked into this, and it's a PITA unless you are a good welder/know a good welder that owes you a favor.

I have/know neither,
so I solved it by installing the arrow headers and slip on. Job done.

Can you feel the difference?or even better have you tried it on a rolling road to see the power gains?

 

[greg the pole]

Can you feel the difference?or even better have you tried it on a rolling road to see the power gains?

Yep. The bike pulls like a freight train without the cat. It spins up much faster than it did with just the slip on.

Never had it on a dyno.

 

[Spaggy]

I've looked into this, and it's a PITA unless you are a good welder/know a good welder that owes you a favor.

I have/know neither,
so I solved it by installing the arrow headers and slip on. Job done.

Good advice Greg.

 

[Xt1200zsupertenere]

http://www.yamahasupertenere.com/index.php?topic=20696.0

Look att the youtube at that one ... shit that i dont know anyone that's tig weld

 

[Niterunnr]

http://www.yamahasupertenere.com/index.php?topic=20696.0

Look att the youtube at that one ... shit that i dont know anyone that's tig weld

The above link takes me to main forum page.
I’m looking at a used bike with CAT delete, any negative side effects I should watch for?

 

[Paul466]

Here’s another question: If one flashed the ecu and than decided to remove the cat or install headers is the different flash needed?

 

[fac191]

Probably much easier to put the Arrow headers on and a much better result.

 

[RIVA]

 

[Madhatter]

english

Very misleading title

 

[lukasteam]

I just gutted my exhaust headers . I will create a thread on how to do it etc.
It was easy and I would say it's a must do mod on ST .
Why spend $300 on Arrows when stock ones are stainless (the part where cat sits is not ) and weight the same as Arrows when you remove the cat . Actually I think stockers work even better because the cavity where cat was now acts like a little expansion chamber for the gas making the gas flow even better .
I just did a short 2 hour ride to test it and all I can say is wow , what a difference !!!
Engine now it's smoother , way smoother , runs cooler . Feels like it spins so much free'er and faster now through out all the rpm range .
I still have a choked off stock can , but I can only imagine how nice it will be when I will get some good aftermarket .
I'm not sure about power gains and torque gains , can't be that much imo , but removing that cat just makes your engine sing , completely different feel to it .

 

[Niterunnr]

lucasteam, I’m looking forward to your write up. Maybe you can add a link here for those that might land on this first during their search.

 

[lukasteam]

lucasteam, I’m looking forward to your write up. Maybe you can add a link here for those that might land on this first during their search.

Sure thing !!!

 

[Jlq1969]

it would not be better to replace the catalyst part with a stainless steel tube, and leave the cat intact? ... I think it would be better to keep the cat, if it were necessary to mount it in the future, to destroy it completely

 

[richarddacat]

Now we’re talking!

 

[lukasteam]

Here's my "How to" as promised :
https://www.yamahasupertenere.com/index.php?threads/cat-removal-ok-my-17-st-how-to.26858/