Components of the N20A naturally aspirated kit and N20TG turbo kit are completely non-interchangeable. Besides, there are significant discrepancies in cylinder gasket thickness, oil passages, fuel sealing parts and turbo gasket hole positions compared with Wuling LJM20B, Mitsubishi 4A9, Changan JL486 series and DFSK HD15 engines. Cross-model assembly is strictly prohibited.