i had a 2001 1,8t a4 but totalled it. it had a few modifications to it including a GIAC but since i didnt but the chip myself i dont know if the previos owner bought any thing else o go along wth it. so with insrance mney i jst picked up a 200 a4 1.8t and i was thinkin of buying an APR chip. I really want to get the best performance outta the chip and car so if anyone can recommend any parts it would be a ig help thx.

 

APR chip, APR R1 diverter valve, TT injectors, etc.