headgasket

Hey guys, So, I'm thinking I may have a blown head gasket or a cracked cylinder head. If anyone has any other suggestions on what to check before I open this thing up, I'd greatly appreciate it. I'll try my best to keep it short but detailed. Aftermarket Mod List: 2024 Supra 6MT Pure 850...

I just want to know if it’s a common issue with 2021s or just our motor in general. Backstory: Stock car with just a downpipe and full exhaust. No tune. 93 Octane. 10xxx miles. From normal driving, every once awhile, you come to a complete stop and white smoke comes from the rear of your...