Hello this is my first car the 08 g35 sedan. I was wondering what I should and what are the best parts for it. I was thinking about a catback exhaust but it does look a little pricey and was wondering if a muffler delete works just as good. I was thinking about lowering it and getting sum nice rims and tires as well. I did just install some short ram intakes but now told it doesn’t really add performance so I will get Cold air intakes after I do other things. This is my daily as well so any suggestions I should do performance wise lmk! Thank you

 

For your HR sedan a true dual intake, high flow cats, and a muffler delete sets you up nicely for an UpRev tune.

The HR sedan is one of those few vehicles that actually sounds decent with a muffler delete.

 

I personally think that a muffler delete for a daily is too loud and may get annoying after some time, but I'll let you be the judge of that one: As for a good first mod, I'd say that you can't go wrong with a cold air. Of course you're not actually going to get the performance gains that the site tells you without getting a tune, however, it's not required and it's a decent starting point imo.
Z1 has some good stuff listed on their site. I would recommended giving them a look.