My new larger fuel tank 130-135 lts. (was 76 lts OEM) Stainless steel. 40kgs weight. Made locally for 4th gen 4R. No mods requiere. Same pump, hoses. no removal of spare tire. Cannot use original tank metal protection. 2h install. 1500$US. 24h since install sofar no issues. Very useful in a communist country (Venezuela) where you cannot find fuel outside the capital city.