Well umair bhai, liana already has 2.0 dia exhaust which is more than sufficient for a 1.8L engine.
So exhaust ports of m18a on head and on header, they match. So no need of messing with exhaust system.
Then comes throttle body, no it does not cause any such issue. Im telling you throttle body is not that big, im repeatedly telling you
zameen asmaan ka fark nai hai. Whatsapp pe apko comparison bhejta hun tb's ka.