i have my gli converted from toyota capital, with landi renzo italian kit with 60Wl cylinder, getting gud millage and power in city and on motorways with ac, getting 150-160 with ac in city, and 180-190 on motoway. 8000 km drove yet and no back fire or anything happened yet, u can install cng kit landi renzo italian with 55wl cylinder in 35,000 - 38,000 max from anywhere with gud electronics.
Regards
check out my ride:
https://www.pakwheels.com/forumreply_az_TopicID!46357~ForumID!10~pw.html