[Guest]

I didn't like how my monster sounded with the stock cans and that's the motive of what happened next. Well, after reading all the articles on stock exhaust mod, I decided that sending my pipes to s4strati to have them mod is the best solution. The problem was I commute with my 620 every day and couldn

 

[Guest]

if you cut air box lid and install k&n your'e mixture will be too lean. in accesories and mods, read exhaust mod fuel mixture question

 

[Guest]

i'd really like to get a chance to run a 2v'd monster before/after on the dyno with stock/modified cans... i've got dyno-data for a 900ss but the muffler design's different enough between the ss and the monster that i think the results would vary.
very interesting to me that you felt a loss of power in the midrange because with my s4, that's where i had the most noticable gain with just over a pony at peak.