Do you have underdrive pullies? Just a thought.

 

No underdrive pulleys... I figured out it's the stock air intake. I wanted to test if for a while with EVERYthing stock (except magnaflows) before I upgraded anything else. I removed the silencer and it made a huge increase in low rpm boost. I have a business trip starting this coming weekend lasting until the following weekend (Sep 4) so I won't get the KB CAI put on soon. I don't feel like pulling the front passenger fenderwell liner out just before I leave. So I'll have something to look forward to when I get back...