Spark plug Denso or OEM Subaru

The most expensive proposition was a new windshield, but your particular insurance could solve that. Spark plug replacement was a surprise as far as cost is concerned. I've routinely changed the oil and cvt fluid once. No other maintenance issues. I love the car. Incredible roominess in the cabin and very capable offroad when needed.

Ignition coil most likely. I have done many dozens of them. Takes about 2 minutes to replace.

I recently got Denso (OEM) from my local o’reillys cheaper than the dealer (~$80).

Bro ABSOLUTELY do the spark plugs yourself. I bought oem Denso spark plugs from Napa Auto for about $180. Then all you need is a spark plug socket w/ swivel head, 10mm socket, 12mm, a couple extensions, needle nose pliers, dielectric grease, and a pick to make life easier.

Denso iridium spark plugs

New Denso Platinum spark plugs. Car drives great, no codes, no sputtering or stalling or hesitation.

Fitting a decent set (Denso or NGK) of iridium plugs is also worthwhile.

Swapped the NGKs (around 60k miles on them) for new OEM Denso plugs. That stopped the shaking for about two days, then it came back.

I’ve had several Denso plugs do this on a couple Camrys I service, and our own. All 2.4 cars. Caused tow ins for both husband and wife’s cars. I’ve fired denso as a spark plug provider, too many failures.

I now dread doing spark plugs. Something that’s super easy to do on most 4 cyl cars is a PITA doing on my ej25.