hey ppl, just had a full 3" exhaust system fitted to my classic jap wagon and wondering what sort of bhp increase i should expect, it feels alot different so im asuming some!

you know how it is with crazy figures being thrown around for mods, some reliable info would be great!

Also whats the deal with induction kits these days? are they good are they bad? back in the day it seemed like everything had a 57i bolted to it

being new to a scooby whats the argument? where i came from (VW land) it was a no-no! lol