i have a 08 gs sm5 i bought 5 months ago 9000 miles.it already had a micron exhaust when i got it. it would spit and sputter most of the when riding under 4500 rpms. after reading online i decided that a evo o2 eliminator might help. no luck. now i have 10500 miles and it still runs like shit under 4500 most of the time. i also get check engine lights at times. the neutral n light flicks in first and second gear sometimes, and sometimes the n and r reverse lights both flicker in first and second. i have also been getting brake failure messaage lately. the pads are still good and the res. is full. the steering recall was done in feb. 2011. i dont ride any further than to work and back , 24miles round trip, because i dont trust this basket case. any and all help would be appreciated.