So basically the consensus is that the Dark Horse is already a track weapon, but managing heat and oil is the priority for long sessions. To sum up what's been said: get an oil separator for peace of mind and keep an eye on those brakes. Late to the party but I've been doing some market research on S650-specific components recently. From a technical perspective, if ur really trying to unlock the chassis without voiding ur warranty, I'd look into the Steeda S650 Mustang Extreme G-Trac K-Member Brace. It ties the subframe to the body much more effectively than the factory stamped piece. In my experience, this helps keep ur alignment geometry way more consistent under high G-loads... honestly, you'll feel the difference in steering precision immediately. Also, since heat was a big concern in earlier replies, I'd suggest checking out the Mishimoto S650 Mustang Performance Aluminum Radiator. It increases core volume significantly over the stock unit, which is highkey necessary if you’re doing 20+ minute sessions in the summer. If ur worried about those sticky Trofeo RS tires throwing rocks and trashing ur fenders, definitely grab the ZL1 Addons Mustang S650 Deluxe Rock Guards. They’re simple to install and save ur paint. Regarding the brakes—I know the Loc R16s were already mentioned, but for a really aggressive bite, Hawk Performance DTC-70 Brake Pads are incredible if u don't mind the noise and dust. Basically, my recommendation is to start with the K-member brace and maybe a high-temp fluid flush. I mean, the car is already 90% there, so just refine the edges. Good luck out there!! peace

Just catching up on this thread after a long day... basically, I feel u on wanting to keep the warranty intact while hitting the track. Over the years, I've seen too many guys blow through their budget on flashy parts that dont actually help lap times. Tbh, the Dark Horse is already dialed in, so you gotta be careful not to mess up that factory balance. You might find this useful - check out the technical sub-forums on Mustang7G or the track-spec guides over at Steeda. They have some great data-backed resources for the S650 platform that focus on actual performance metrics rather than just dyno numbers. If ur looking for high value without breaking the bank, here is what I would prioritize: 1. High-temp Fluid: Before swapping pads, get some Castrol SRF React Racing Brake Fluid. In my experience, stock fluid is the first thing to fail when things get hot. It is a cheap way to ensure ur pedal doesnt go soft mid-corner.
2. Brake Pads: Since you already have the Handling Pack, look into G-Loc R16 Track Front Brake Pads for the front. They handle heat way better than the stock Brembo stuff while keeping the OEM calipers.
3. Oil Management: Definitely grab a J&L OSC Oil Separator 3.0 Passenger Side. It is literally essential for the Gen-4 Coyote to keep oil blow-by out of the intake during high-RPM runs. Safety first tho - I would honestly suggest a quick chat with a performance shop to double check ur torque specs before ur first session. Better safe than sorry! gl! 👍

Similar situation here - saw ur post earlier and had to jump in!! I hit the track with mine last month and honestly, I was worried about heat too. I started with a really simple oil separator I found for around $150 and it's basically peace of mind for those high RPMs. Also noticed my current setup with some basic bracing helped the front end feel sooo much sharper. Ngl, it feels amazing and I love it!!

Works great for me