RE: Tuned pipe tuning problems
ScottMcM,
You might want to consider a Magic Muffler type mini pipe such as the Jett Stream, MVVS3253, Ultra Thrustor even a home made moussecan type. Theseoffer a broader range of rpm boost along with better throttling response. Some report as much as 1400 rpm boost (in high rpm engine setups) with these types of exhausts. You would surely get several hundred more rpm.
Terry in LP