the 04r is gd,but expect to spend more on hop-ups such as carbon damper stays n 1-ways etc...
i spent a lot on my 04r actually,...depending on wat u like,i personally feel tat it's gd even when it's stock...
in terms of tuning,the 04r is limited compare 2 the 414m...
hard 2 say which is better off buying etc,...it really depends on wat u like...i know i bought the 04r...hehee