i just score myself a hi flow cat from u.s which they use for fpv wat do u reckon guys will it be good in magna 3.5 ralliart

that's the next best thing to a straight through pipe!

say NO to cancer ! :cry:

say NO to cancer ! :cry:



is it really that bad to hav it on?

its a hi flow cat. not a "no cat" so what you talkin bout willis?

An australian hi-flow cat shouldn't make any difference to emissions as they all have to pass certain adr's and emissions tests to be allowed to be sold.

And you'll probably find that it won't make much of a difference anyway. Our cats aren't that restrictive and any difference you see I doubt could be quantifiable on a dyno anyway.

They become restrictive in time from too much heat

Yeah, they're eventually die like that but considering his car is pretty new, it should be okay.