Hey guys! I have an 04 Grand Prix with about 50000 miles on it that I have been daily driving for about a year now. I have been looking for a project car to mess around with but have never found anything in my area that I thought was worth it. I do really like my grand Prix but wanted to keep it stock to have a reliable daily driver. I have been thinking about getting a cold air intake for it and maybe a performance downpipe but is the performance increase noticeable enough to justify the cost? Also I see PCM tuning seems to be a common mod for this car but I'm not sure I have a tuning place near me and I have heard mix things about pre-tuned PCMs. Is it worth upgrading a NA grand Prix daily driver? Or should I just keep looking for a beater project car to mess with?