i NEED somewhere to but in a sports CAT for my mongoose as i really really cant put myself through taking it off for the MOT, i deally would like a 100 cell cat section that allows me to pass the MOT, anyone done this? and can you recommend anywhere?

 

???????

 

Would like to know this aswell.

Does the power go down then or what?

 

speedy power will go down slightly i think but im having a cat section built in with flanges, they will also build me a decat section to fit in nicely, somewhere thats easily accessable!!! just gotta find someone to do it

 

That would probably solve my MOT problems I'm still having over here in Belgium since 1st March 2006.

 

speedy i will let you know how it goes

 

perhaps more useful for speedy as he can probably read german

http://unifit-daten.de/baseportal/20...ats_metall_100

i have ordered from them before, and they were a good company to deal with

 

I have 400cell 3" Catco ceramic cat in my car and it passed exhaust tests with it. It did need quite alot warming before it passed them. The car was dynoed with catalysator on (400bhp/400lbft), but I have no idea how much it would have been with out it. I just cant be bothered to take it of after mot so it stays always on.

 

Would a smaller cell size warm up quicker or is it the larger ones that gets warm fast due to being more restrictive?

Need one as well on my car.

 

no the more cells a cat has the more exhaust gases it can flow with less restictions and it can clean, ( lower the emissions ) the hotter a cat gets the better it works.
so a smaller cell cat will restrict the engine ( exhasust flow, by incressing back pressure ) and will not lower the emmisions as much as a larger cell cat.

best bet

fit the largest cell cat ( or run 2 x 300 cell ) and convert to coil pack ( wasted spark as this also helps by firing on the exhaust stroke to burn as much as poss ) and on a car running gray injectors you can run at well below 0.5%

or just get one of MSD s closed loop lambda conversions !!!!

or do both and Mr green will love ya !!

 

Any more info on this?