Brake system upgrade
 

What should I go with for performance? Should I start off with steel brake lines and performance rotors?

Yes better rotors with matched pads, I like Racing Brake brand. EBC is great too. SS lines give a tighter feel,
ck vendors Excelerate and MrHeelToe
5.1 brake fluid gives firmer pedal, not 5.0 ever!!
only 5.1 if you want to upgrade fluid

Stainless steel lines are a good way to improve your pedal feel, and changing out the pads can have a huge effect on how braking feels!

For a simple OEM upgrade we usually recommend a StopTech axle pack. They offer high performance and high quality by providing application-specific, pre-matched brake packages in a variety of options.

You can find an axle pack here: 937.40003 - StopTech Axle Pack - Street - Excelerate's Honda & Acura Store - Japanese Performance Specialist. That package comes with PosiQuiet pads which offer a solid initial bite along with minimal brake fade and noise, and are paired with StopTech slotted rotors for added cooling and consistent braking.

Feel free to send me a PM if you wanted help finding the axle pack that is best for you!

I hear the best brake upgrade is Acura Legend front dual piston calipers and stainless lines. Those calipers are a bolt on, plug and paly upgrade too!