Ok, So the charcoal canister is going bye-bye, as well as the stock muffler/cat combo. I am looking at buying a "Tune boy" system to re-tune for the exaust. I am curious if anyone has dynoed there SD's before and after mods. Wondering what kind of HP i could expect. As I live at ~4500ft I know My power will be down a bit, If I can get some time off work at the same time as my dyno-owning freind I will try to gather some data and share.
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