Gday there fellas, you can pack these things to be very quiet if thats your preference. As far as **** spitting out, you'll find that once you let is settle it will stop. Crack and pop etc, sounds like stepper motor but do yourself a favour, even if it looks as though all your vacuum hoses are on properly, go through every connection point and make sure everything is pushed in as firmly as it can be.
Headers are awesome from reband, collector is brilliant, muffler is all about individuality.....
As far as the tune, Nevs stuff as a base is generally as good as it gets, hence that stunning torque curve nice and early.
Mittzy, Do me a favour, go outside, jump on your bike, warm it up, then on a clean bit of road pull up, put her into 2nd gear, get her reving about 2750rpm then let her go and keep feeding her on holding 70-90% traction. Once you get into forth slow down or go to jail. Then do it 2-3 more times. Once youve done that come home. When you stop smiling hope back on and let us know what you think.

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......Speak to you next week