Quick Read
- Mandaluyong suspension modification on cars and motorcycles is listed as unauthorized modifications carrying a ₱2,000 fine under the Metro Manila Traffic Code of 2023.
- DOTr Department Order 2010-32, the main national modification rule, leaves suspension off its prohibited list and says suspension work is not a change in vehicle classification.
- The approval route LTO has cited is a Certificate of Road Safety from the manufacturer, and the poster names no certificate, office, or process.
- Altered exhaust has a named ban and a reported ₱5,000 minimum LTO fine, which makes suspension the weaker claim on the same poster.
- Owners who changed shocks or springs, and the shops that fitted them, carry the risk because the ticket depends on how an enforcer reads an unclear standard.

A Mandaluyong suspension modification without approval can cost ₱2,000, according to a poster from the city’s Traffic and Parking Management Department (CTPMD). The amount is correct. The listing of suspension is where the poster runs ahead of the published rules, because the national order on vehicle modification does not name suspension as a prohibited change.
The poster is Episode 06 of the department’s Trapik-Kaalaman series. It places unapproved suspension changes for cars and motorcycles beside altered exhaust, lights, body kits, fenders, window tint, and side mirrors. It cites the Metro Manila Traffic Code of 2023, Republic Act 4136, and unnamed LTO and DTI regulations. It points to no provision for any single item.
Mandaluyong Suspension Modification Appears on the List With No Cited Provision
The ₱2,000 figure checks out. The Metro Manila Traffic Code of 2023 sets that fine for unauthorized modification across the region, so the amount is not unique to Mandaluyong. What belongs to the city is the list of examples, and that is where the sourcing thins.
The poster’s text says the fine applies to a modification made without the necessary approval or certification from the LTO and the DTI, and it credits that wording to the Code. The caption is more careful. It calls the examples possible unauthorized modifications and states that not all modifications are illegal, only those that break applicable law and regulation. The image is blunter, with a stamp reading “Modified Without Approval Is Illegal!” across the photo.
On the car side, the thumbnail labeled as a changed suspension shows a wheel, not a suspension part.

The National Order Does Not Name Suspension
The main national rule is DOTr Department Order 2010-32. It defines modification as a physical change to an existing vehicle design and bars certain changes on safety and environmental grounds. According to LTO’s published statement, those are axle and chassis changes, extended bodies and overhangs, rim size changes, handlebar and muffler changes, and reconfiguration of body dimension and design. Suspension is not among them, so the Mandaluyong suspension modification listing finds no match there. Section 5.1 of the order adds that work on suspension and on interior and exterior trimmings is not to be treated as a change in vehicle type classification.
That does not clear every suspension change. The order introduces its list with examples, and a 2014 joint administrative order on LTO fines adds a catch-all for other unauthorized modifications of the manufacturer’s standard specification. Published reports of that clause name one example, a change in color. The same schedule lists a ₱5,000 fine for the category, against the ₱2,000 in the Metro Manila code.
Approval Runs Through a Manufacturer Certificate
The order allows a modification when the owner can present a Certificate of Road Safety from the manufacturer showing that the change does not compromise safety. That is the approval route LTO has cited. For a changed suspension, the legal question becomes whether the owner holds a manufacturer document covering a part the vehicle manufacturer may not have made.
The poster names no certificate, no office, and no process. Its caption tells owners to consult the LTO before major modifications. A Mandaluyong suspension modification ticket therefore turns on a document the poster never names, and a motorist with a different set of shocks, or a shop that fitted them, is left to work out which paper an enforcer will accept.
Exhaust Has a Named Ban and Suspension Does Not
The same poster lists altered exhaust, and that item has a named rule. Section 34 of Republic Act 4136 and Section 5.2.7 of the DOTr order prohibit muffler modification. LTO’s Central Visayas office began an enforcement drive in February 2026 and reported a minimum fine of ₱5,000, impoundment, and mandatory replacement of the exhaust for motorcycle violators.
Side by side, exhaust has a named ban, a stated penalty, and an active drive. Suspension has a list that leaves it out and a catch-all clause open to interpretation. Listing both as the same offense on one poster treats a settled rule and an open question alike.
Enforcement Has Split on This Before
In October 2018, during an LTO crackdown on modified pickups and SUVs, an LTO director said the vehicles carried parts that should not have been modified, naming suspension, rims, and exhaust. Soon after, another LTO official said the agency had no active operation against modified 4×4 vehicles and that no memorandum or department order empowered a wider one, given the lack of firm guidelines for officers on the ground.
One agency gave two readings within weeks of each other. The poster does not say what guidance Mandaluyong’s enforcers follow.
Owners and Installers Carry the Risk
Without a measurable test, whether a setup counts as a violation depends on who is holding the ticket book. Owners who changed shocks, springs, or ride height carry that first, along with the shops that fitted the parts. A buyer can install a part correctly and still have no document to show an enforcer, because the certificate the order names comes from a manufacturer.
The poster passes that question to the owner. Until a published standard says what counts as a Mandaluyong suspension modification, an enforcer’s reading decides the ticket, and the owner or installer who fitted the part carries the cost of that reading.
Source: Mandaluyong City Traffic and Parking Management Department Facebook
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