Hey bro you can visit us at Dmotorsports Islamabad G12.
We are experienced in these tricky mitsubishi and nissan systems. We've done overhauls, partial rebuilds, head gasket replacements, swaps of lancer alot... And we are renowned in mitsubishi. Whether its a 6a,6g,4g series.
You can visit my Facebook, Google pages (Dmotorsports) and see our technology.
03455072961
051-2154717
03105419868
These are my contact details.
You can show me your car and I can do compression test and find the problem exactly and will propose you a quality oriented and cost effective solution.