by oldman » Fri May 14, 2010 5:19 am
I would be cautious about who you buy slip-ons from. The Z1000's fuel map is tuned for the stock exhaust and just buying any old slip-on can adversly affect performance. I have a 2004 Z and have tried several slip-ons as well as a complete Muzzy system and each one had it's little problems, Muzzy slip-ons gave me improvements on top end but I lost a lot of mid range, Laser extreme slip-ons gave me good mid range but a loss at high RPM, etc. etc. This is with a tune and a PCIII. I looked at the site you posted and could not find the reference you made to growlers and I'm not saying they will not work but exhaust gas flow is something that can be very tricky as the length of the pipe as well as the diameter greatly affects proper flow at different RPM's. I finally settled for a full Muzzy and am getting over 130 rear wheel HP at 4600 feet altitude. I have a full Muzzy, PCIII, airbox mod and ported and polished exhaust ports. The more Jim you have the more things become clear. If one shot is good 10 must be better.