[3] At the town centre of Klang, the FT2 highway intersects with Jalan Langat FT5 at Simpang Lima Roundabout Interchange.

As a result, the FT5 concurrents with the FT2 along Jambatan Kota before the FT5 route is diverted to Jalan Kapar FT5 at Simpang Tujuh Roundabout Interchange.

The section of the Federal Highway FT2 from Berkeley Roundabout Interchange to Subang Airport Interchange was a tolled section managed by PLUS Malaysia Berhad, the operator of the nation's longest expressway, the North–South Expressway.

[6] However, after the completion of the Kuala Lumpur–Petaling Jaya Traffic Dispersal Scheme in 1983 that extended the KL MRR1 to Jalan Istana Interchange that linked the MRR1 with Jalan Syed Putra FT2, the FT2 ceased to concurrent with the FT1 and was detoured to Lebuhraya Sultan Iskandar (formerly Lebuhraya Mahameru) instead.

[1][4] The Kuala Lumpur–Kuantan Road FT2 was concluded in 1955 when the final section from Temerloh to Maran was opened to traffic on 11 June 1955.

[8] The final section took a very long time to be completed due to rainy season, huge floods and swampy region, as well as the advances of the Imperial Japanese Army during the Second World War and the activities of the Malayan Communist Party terrorists during the Malayan Emergency.

The new bridge project also included a new roadway that bypassed Temerloh and Mentakab, causing the former Temerloh–Mentakab section to be re-gazetted as the Federal Route 87.

In the 1970s, a replacement segment for the narrow and winding section from Kuala Lumpur to Karak (known as Jalan Gombak) was constructed.

[12] Initially, the East Coast Expressway was supposed to be constructed under a different route number by a consortium consisting MMC Corporation Berhad (through its subsidiary, Projek Lebuhraya Timur Sdn.

(Pelita)), MTD Group and Malaysian Resource Corporation Berhad (MRCB),[13] but was ultimately constructed by MTD Group in 2001 after the former consortium withdrew from the job due to the effects of the 1997 Asian financial crisis.