welcome ya nabih:D and the freeflow mufflers are specially made for turbo cars to reduce the backpreassure and maximize the air flow..removing the middle box will only increase the sound but still you must remove the catback and replace it with a free flow one..and from my experience in the mufflers ..i can conclude that bigger freeflow mufflers are less noisy and smaller ones are more noisy..when saying bigger or smaller i mean the outer diameter not the inner..the perfect inner diameter for a t-jet engine is 2.5"
and when i had my full exhaust on it was a hell of a difference
Also the abarth turbo IHIVL36 is the only one that you can buy from an aftermarket dealer ...the gt1446 is not for sale in markets..you must have an abarth 155CV and buy the full upgrade box to get it..u must supply them with the chassis number and it must be for an abarth155
and considering the ihi vl36 u can only hit 185BHP MAX with it also have in consideration the low octaned fuel we have and the bad weather :) thx:).