how to make a 100cell cat by myself?
if I buy 2 100cell can I modify my stock cat?...it's very difficoult?

 

if you're good at welding, why not

 

You have to make a jig.. And your welding purging has to be top notch..

And that's not talking about the fitting process.. I spend over 8 hours on a set..

 

I had a set done by a very professional laser cutting and fabrication company - they rolled a new cylinder, jigged the cats on a bench, cut it all up, zipped it back up - looks absolutely factory and cost £360. Defo not a DIY. If you had the ability to do it you wouldn't be asking!

 

ACE,

Was that GBP 360 for the set of 2?

 

What happens if you just gut out the cats and put them back on the car? Will it hurt anything other than maybe not passing a smog test. Will it trigger the check engine light? Thanks doug

 

Doug,

The stock ECU will trip the CEL if the "pre cat" and "post cat" O2 sensor don't show the proper ratio of oxygen. If the cats are removed or get polluted, the ECU will trip the CEL. Aftermarket programs can do other stuff... many will ignore the O2 sensors for purposes of the CEL. It kinda depends on who did your programming.

 

That was for the INSTALLATION only. I paid around £500 for the 130mm 100 cell cats (they may be 200 cell, I can't remember now). I got them from a company on pistonheads - ast performance i think

 

Any MOT issues? Is ACEparts selling these in the UK? I didn't see any on your site.

 

Thank You, Steve

 

No i'm not selling them but i can point you in the right directions. There's no MOT issues and you'll be pleasantly surprised by the new free revvving nature of the engine - power well into the red line

 

Excellent! Can you PM me the info? Thanks, I'm back in blighty this weekend.