I'm considering getting a magnex exhaust.
I'm not to sure what to get please take into account i have a 1.4 8v SPi.
I was thinking of getting a catback system, but seeing as it costs £155 more than just the backbox, what do i get extra for that £155?
So what does a catback system give that the backbox doesn't?
with my engine, shall i just go with backbox?
I am willing to pay for the catback as long as i get my £155 extras worth?
how much extra bhp/torque will i get out of the catback from just the backbox, if any?