Fg Euro 3 Vs Euro 4 Cat Pipe/dump Question

[XtRmn8]

I know that XFT have got over 350rwkw out of a baby turbo FG on E85 with the Euro 4 cat.

[Z2TT]

Just keep in mind guys it's not all about the max power it can make, it's about how hard the turbo/engine has to work to push through that restriction to make the same power, you can have 2 cats that will make the same power but a higher flowing one will make it more smoothly and sooner.

How big of a restriction would a Euro4 cat be compared to say a bolt on 100 CPI probably cost wise vs power wont make much different that being said I have not seen any back to back tests comparing them both.

The stock cat is pretty large so no wonder it can make good power

[ratter]

it has said before, that running a restrictive exhaust is like farting through a straw, yes you can do it but your face is going to turn red doing it

[f6mark]

oh dear.