Hitachi to Bosch MAF adapter harness, B5 Audi S4 and others hat ) NOTE: this will not

) NOTE: this will not fit cars with the factory airbox

Easy to install

however they are choosing not to void the warranty at this time

Our relay harness kit provides a high quality 75amp capable relay to power the system and triggers off the factory fuel pump wire for a quick clean installation

4 350mA protected open collector drivers with pullup

Hitachi to Bosch MAF adapter harness, B5 Audi S4 and others hat ) NOTE: this will notNeed to install an RS4 Bosch MAF (or stock Bosch b5 MAF) into a car that originally came with a stock Hitachi MAF? This adapter harness is for you. Plug and play, no wire splicing or cutting required.