The stock plugs in Cultus are not 4tip plugs, but u can install 4 tips to increase power with the same economy.
But BEWARE, adequate tunning is essential after every mod because otherwise, u wont feel any difference!
When u install them, Advance Ignition Timing and IF ur not that pushed for economy, open the fuel jets to the extent too!
That'll give u immense power than stock! If u wanna buy, lemme know!