di naman siguro useless, but probably not worth the money you're gonna spend.

Sabihin na natin mag spend ka ng around 80K-100K (all-in na yan, pati iba pang kailangan, IC, fuel management, injectors, whatever), the power you will be gaining is not that much in relation to the the amount you will be spending and it's still a 1.3 with a lot of limitations.

If I'm in that position, mag swap na lang ako ng makina with a bigger displacement.

my 2 cents