I have a strong running stock 05 900 and I am now looking to add some performance for long pulls. I have been very happy with the performance of this sled right out of the box. I have had several chances to run this sled against other 9's (05 and 06) and this thing has been untouchable. Now I am starting to get out run by my friends newer xp 800's and would like a performance upgrade. Should I go with a slp pipe and clutching or just go the nitrous route?