I have had my 98E0 for 4 years now. I am having a problem, recently, with my secondaries or my Fuel system not delivering the added punch after 3800rpm's. It is not consistant and really baffles me. Sometimes it runs like a raped ape and others it falls flat. It still out performs most cars on the road, but lacks the punch that I have grown attached to. I expect, with the cash and time I put into it, at least a 14.80 in the 1/4, but I struggle to get in the 15's. I ran a 15.20 3 and half years ago with only a K+N drop in! What gives? I still (@60k miles) am under warranty. Should I go through the hassle of bringing it back to stock, to take it to the dealer?
