GP GT upgrades

Hey guys I'm new to the site and was intersted in ugrading/modding my 1997 Grand Prix GT. Its all stock. I think its rated at 195HP stock and was looking parts that would bump up the horse power, and speed.


I took it on the High way the other day and it toped out at 105 mph:disappoin . It hit the 105 mark and it kicked it back down to 100. :screwy::screwy: I don't know why?

Any websites, catalogs, or suggestions would be appreciated.

It also has a 3.8L nonsupercharged engine with 140,000 miles on it