Pre cat delete/sports cat question

[Johnny 99]

Hi,

I'm considering fitting a sports cat along with pre cat delete. Has anyone done this & did you have any problems with emissions come MOT time.

Thanks in advance,

John

 

[Sean197]

If it's any help, I'm running a K-Tec 200-cell sports cat with my Megane engine conversion, and the garage checked the emissions before I collected the car and it passed no problem.

One on ebay - http://www.ebay.co.uk/itm/Renault-S...921471?hash=item4d4e68043f:g:~9oAAOSwpLNX9XJl

 

[Johnny 99]

If it's any help, I'm running a K-Tec 200-cell sports cat with my Megane engine conversion, and the garage checked the emissions before I collected the car and it passed no problem.

One on ebay - http://www.ebay.co.uk/itm/Renault-S...921471?hash=item4d4e68043f:g:~9oAAOSwpLNX9XJl

Does that mean that you have no pre cat in the manifold? Reason I am asking is I have exhaust with sports cat on order & am considering getting a k-tek manifold too, which has no pre cat.

 

[Sean197]

Does that mean that you have no pre cat in the manifold? Reason I am asking is I have exhaust with sports cat on order & am considering getting a k-tek manifold too, which has no pre cat.

The Megane has the cat in the manifold which I replaced with a decat pipe, not sure if it has another like the Clio does. I only have the sports cat, and the emissions were fine, no emissions light either.

 

[Johnny 99]

The Megane has the cat in the manifold which I replaced with a decat pipe, not sure if it has another like the Clio does. I only have the sports cat, and the emissions were fine, no emissions light either.

Cheers bud

 

[Johnny 99]

Anyone else running Toyosports or K-Tec manifold with sports cat?

 

[kameleon]

Anyone else running Toyosports or K-Tec manifold with sports cat?

toyosport manifold,rc racing 200 cell cat,acrapovic evolution,emissions ok

 

[Don Hog]

Does this mean a re-map? Can the ECU handle the difference in flow through the engine? Any risk of it running too rich?

 

[kameleon]

re-map is the best thing to do

 

[Foxspeed]

Does this mean a re-map? Can the ECU handle the difference in flow through the engine? Any risk of it running too rich?

removal of the restriction will necessitate a remap