Ok, I can’t figure out for the life of me what fits this bolt......it’s the plug to the ecu on the passenger side firewall of my 03’ s type r under the air box. I keep seeing t30 torx and inverted torx ten mm, but I can’t seem to figure it out. I really appreciate it guys😂.

 

Some sort of Torx/Starr thing hut why do you want to remove it? The PCM is a very solid beast! You're probably looking in the wrong place.

 

Hey, sorry I didn’t mention it earlier but I’m replacing the engine so pulling the plug to remove the wiring harness.

 

It's a security torx, they have a hole in the centre for the pin. I don't recall the size, Pep Boys have them.

 

Looks like you will need a 5 point Torx security bit. Not sure of the specific size, but plenty of choices for complete sets here:

 

The fastener is called a TORX PLUS security bit and Jaguar issued them to the dealers about 20 years ago.
The Jaguar issued tool is a 5 lobe T30 Torx Plus security bit.