You can choose to top-up your selected Fibre Broadband plan to maximise your Wi-Fi coverage at home.

All you need to do is select Linksys E8450 on the router listing page after selecting your Fibre Broadband plan.

Purchase-with-Purchase (PWP)
Whether you’re a new or existing M1 Fibre subscriber, you can purchase the Linksys E8450 at $290 (U.P. $478). The purchase is only limited to 1 bundle (2 units) per customer.

Full specifications is available here or here.

User guide on connecting Linksys E8450 nodes via Easy Mesh is available here, page 7.