Powerflex Upper Engine Mount Insert PFF60-1420Fits 1. 6T RenaultSport Clios only. The original oil filled engine mount softens and perishes with age, losingitsability to dampen effectively andpromoting unwanted engine movement. By fitting our new insert into the voiding of the OE rubber bush, it acts as a buffer by restricting movement within the bush thus improving throttle response, sharpeninggear changes, and reducingwheel hop. A small increase in NVH, usually at idle should be expected when