I have 3 Honda Magnas, 2001, 2000 and a 1999 all with Cobra slashcut pipes that have never been jetted for the pipes. I ordered the jet set from CARBJETSET with both sets of jets and shims for the needles and installed them on the 2000 model and OMG what a difference. No more lag on takeoffs or shifting, better power all around. The jets are half the price of Dynojet or Cobra jets and no drilling. GREAT technical support and very fast shipping. I plan on getting 2 more sets for the other 2 Magnas. Good job CARBJETSET.