Quote Originally Posted by DavidTB8889
Ok, i have another issue i have to deal with, the S4 has 120k, APR chip, catback, and many other little engine mods on it but stlll has the original turbos. I think the seals are going bad on the turbos because i smell oil everytime the car hits boost. My question is should just replace the K03's, upgrade to K04's, or do a custom set up, maybe even a big single turbo.

IDEAS!!!!!

Thanks
David


get a pair of K04's and get them installed right. get a nice intercooler and maybe some forged pistons. after those mods your S4 would be a beast. you would prob spent a major load of dough but i think it would be worth it. now if your trying to save money just get some stock k03's from ebay and get those installed.