Exhaust manifolds and pre-cats
£1,700–£6,000
The F136 family cracks manifolds. Thin-wall sections next to the pre-catalysts fail under heat cycling, and a failed pre-cat can shed material back into the engine, which turns a large bill into a catastrophic one. The tell is a leak noise on cold start that quietens as things expand.
Fitting aftermarket manifolds is reported at EUR 2,000-4,000 depending on specialist. Genuine Ferrari assemblies cost considerably more and have a reputation for cracking again, which is what puts the top of this band where it is.
Typically bites
Driven by heat cycling rather than mileage, so a low-mileage car that has done many short trips is not automatically safer.
Verified against 3 published sources.