I'm thinking of changing my Vectra V6 Std airbox for one of the large JS-108 Ramair cone filters.

I've heard that 'heatsoak' is an issue which I understand to be warm air being sucked into the engine rather than cold.

A few Q's....

Will I actually notice a significant difference in performance due to 'heatsoak'?

How does 'heatsoak' manifest itself, less power, less acceleration,

Would you do it????? for the Rrrroooaaarrr??