Unitronic also used OEM-model thermal isolation / heat shielding to not just protect the motor bay from radiant heat, but additionally ensure catalyst temperature is achieved and taken care of for optimal performance and function. The large six" catalytic converters supply Outstanding move when drastically enhancing the thunderous seem in https://rafaelltafd.wikififfi.com/1140886/the_smart_trick_of_downpipes_audi_rsq8_sq7_that_no_one_is_discussing