Sports Cat vs. Decat

[dbouwer]

If one can get 7bhp from a sports cat, what gains will one get from a decat?

 

[viceroy]

Possibly 1 or 2bhp more since there isnt the restriction of the cat anymore.

Danie, you up for a Dyno day at Zwartkops on Saturday the 8th Nov? Its being organised by the VW club. Im gonna get a run in, then decat and hopefully get another run on the same dyno to compare

 

[dbouwer]

Sounds like a good idea. Will check with the wife an let you know.

Would be good to see what power lies beneath.

What do you do with the sensors on the cat back if you remove the cat?

 

[viceroy]

I know on the mk1 there is only one sensor before the cat so removing it doesnt affect the ECU at all.

On some of the mk2 there are 2 sensors, and Ive heard things like nothing happens. Hopefully someone whos done a decat on a mk2 will reply with an answer

 

[Rich-D]

Quote: Originally posted by dbouwer on 29 October 2003

If one can get 7bhp from a sports cat, what gains will one get from a decat?

Probably not much, if any more actually...

The de-cat just removes the restriction of the catalyst, but with a free-flow sports cat that aint an issue.

 

[Rich-D]

Quote: Originally posted by viceroy on 29 October 2003


On some of the mk2 there are 2 sensors, and Ive heard things like nothing happens. Hopefully someone whos done a decat on a mk2 will reply with an answer

Its fine, theres no probs on a mk2 if you de-cat it...

Know of several that have done it now!