[JRitt]

Originally Posted by driveside79

Just got my 2022 GR86, love it! I do a few track weekends a year, all "DE" type with 20-25 minute sessions. Plan to keep the car largely unmodified except maybe coilovers. Radi-Cal clearly seems like overkill for me - should I get the Sprint or Endurance kit? I'm all for the "get only what you need and no more" mantra, but wondering how to choose between these two kits. Thanks!

Congrats on the new car! I'm definitely jealous. The one we had in here was awesome and the new BRZ is pretty much at the top of my list of reasonably priced cars I really want to own.

In terms of Sprint vs. Endurance, that just comes down to how much 'headroom' you want in your system. For anything close to a stock-powered car, the Sprint Kit will get the job done 9 times out of 10. We've had Gen.1 86 win endurance racing championships on our Sprint Kit and they've also been used all over the world with engine swaps, forced induction, etc. Scroll down towards the bottom of our blog for a whole bunch of reviews on our Sprint Kit: https://www.essexparts.com/news-blog

Here are some considerations when choosing between our 299mm and 325mm kits:

• The 299mm Sprint Kit shaves about 20 lbs. unsprung weight vs. stock, whereas the 325mm Endurance Kit still shaves about 10 lbs.vs. stock.
• They both use the same basic caliper body and pad shape, and both have street and track pad compounds readily available in many flavors.
• The pads in the 325mm kit are a slightly taller variant of the same basic shape, which adds some volume and heat capacity vs. the pad used in the 299mm Kit.
• The 299mm Kit will offer slightly better wheel barrel clearance for smaller diameter wheels
• The 325mm Kit has floating discs, whereas the discs on the 299mm Kit are non-floating
• Spare discs are less expensive with the 299mm system, but you’ll likely have to change them more frequently than you will with the 325mm kit.

That's about it in terms of differences. I'd characterize it like this:

Our 299mm Kit is likely your best choice if:

• You are using the car to compete in autoX, Time Trials, or wheel-to-wheel racing and every tenth of a second is important to you.
• You are a weight reduction junkie and want the absolute lightest weight brake solution possible
• You want to use the absolute smallest, lightest wheels possible
• You have no plans to add big power to your car via forced induction, engine swap, etc.

Our 325mm may be your best choice if:

• You use your car more for fun than competition (HPDE), and you place a greater value on not having to fiddle with your brakes than you do saving every hundredth of a second.
• You want to change your pads, discs, and bleed your brakes as infrequently as possible.
• You think you might someday add significant horsepower, race tires, and/or aero to your car.
• You like the look of a slightly larger brake package behind your wheels

At the end of the day, they’re both fantastic options, and they both still weigh far less than stock. There are many upsides to both vs. the OEM brakes, and no downsides. You can’t really go wrong with either.