Originally Posted by Schultea1

I will have all 3 of these soon and am anxious to install them. Through reading from the posts installing all 3 could result in engine problems. After installing all 3 the engine needs to be re-tuned. My question is the Uprev tune that everyone is referring to; will that fix the issue of the engine running too lean? Is Uprev something completely separate or what should I do when I install these 3 parts? Thanks in advance for those that reply.