Personally, I am not a big fan of inj line heaters or 12V heat in general, but then again I have not tried them since I two tank SVO and have not needed them. I do like the idea of using them to pre heat lines if running biod/blending/1tanking though.

The inj lines are pretty thick, I wonder how long it takes to heat soak them enough.

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82 MB 300TD, 87 Audi 4000TQ, 05 Audi A4 avant 1.8T 6spd (Wifes), 63 356C, Samurai VW 1.6TD, 71 NSU 1200C, 71 Toyota Hilux, tractors and junk