Page 1 of 1
need help with free flow catalytic convertor
Posted: Sat Jun 21, 2008 11:51 pm
by avipolo16v
i found those on ebay and i would like to know if it's not causing problem in the MOT test , and if it's increasing the padel respones (tourqe)?
thanks
http://search.ebay.com/search/search.dl ... &save=Save
Posted: Sun Jun 22, 2008 12:18 pm
by Bepe
if you want a CAT speak to Fin @ dynoflow mate
http://www.dynoflow.co.uk/
Posted: Sun Jun 22, 2008 2:26 pm
by avipolo16v
thanks mate,
what is the size that i need to my polo 2" or 2.5" it's a 6n2 16v 100BHP
there is any difrence between this high flow cat and no cat at all?
Posted: Sun Jun 22, 2008 3:46 pm
by Bepe
i think its 2.5, go outside and measure it would be your best bet, sometimes its bettter to have a CAT in as you can loose peformance, your best talking to him mate, he no's his stuff, he has done all sorts of Stainless steel fabrication for me
Posted: Sun Jun 22, 2008 4:18 pm
by avipolo16v
thank,
but i'm from israel

thats why i want to order from ebay..
i read about that in other fourm (i didn't find info on this here) and i told that if the stock cat is not blocked that i won't fell any diffrence..
is that right?
Posted: Sun Jun 22, 2008 5:08 pm
by Bepe
the exhaust system on the polo is very restrictive, i had one fitted to mine, a full system, everything except the manifold, i had a stainless peformance cat in and i got a read out on the rolling road of a gain of 7.5bhp
Posted: Sun Jun 22, 2008 8:45 pm
by avipolo16v
wow 7.5 it's alot!
i would like to get this increase of power
what do you mean by saying full exhaust system??
i allready have this backbox fitted to my 6n2
but i tell you the truth i didn't fell any diffrence in accelleration
Posted: Mon Jun 23, 2008 12:21 am
by Bepe
This was on my 1.0 6n2 that i gained the 7.5bhp it was everything except the manifold, you wont gain anything from just a back box, probably lose power if anything
Posted: Mon Jun 23, 2008 6:06 am
by avipolo16v
7.5 bhp on 1.0l engine thats a huge diffrence.
now i get it you mean a wider downpipe no?
Posted: Mon Jun 23, 2008 10:56 am
by Bepe
no, a full exhaust system, everything except for the manifold?
Posted: Mon Jun 23, 2008 3:04 pm
by avipolo16v
yes
look, i found this on ebay it's from a good brand MAGNAFLOW
http://cgi.ebay.com/ebaymotors/Carsound ... enameZWDVW
not sure about the diamter
