Previously, the Federal Route 54 was the only gateway to Kuala Selangor, with a typical journey of 1 hours.

The Kuala Lumpur–Kuala Selangor Expressway project was awarded to Bina Puri Holdings Berhad for contract amounting to MYR 958 million.

As part of an initiative to facilitate faster transaction at the Ijok, Kuang East, Kuang West, Kundang East, Kundang West and Taman Rimba Templer Toll Plazas, all toll transactions at six toll plazas on the Kuala Lumpur–Kuala Selangor Expressway have been conducting electronically via Touch 'n Go cards or SmartTAGs starting 2 March 2016.

(Starting 15 October 2015) The speed limit for the entire expressway is 110 km/h except at Ijok, Kuang East, Kuang West, and Taman Rimba Templer toll plazas where the speed limit is 60 km/h.

North North–South Expressway Northern Route - Alor Setar, George Town FT 1 - Taiping.