These are the exemptions to Manila's 'anti-muffler' ordinance

Councilor Joel Villanueva clarifies that show cars, racecars, and big bikes are exempted from Manila City’s anti-muffler ordinance.

Manila Anti-loud Muffler Ordinance is Final, Signed Into Law - UNBOX PH

Manila Revenue Code, PDF, Value (Economics)

ANTI MUFFLER ORDINANCE SA MANILA PIRMA NALANG ANG

New Manila Ordinance: Loud Exhausts in vehicles now Illegal

These are the exemptions to Manila's 'anti-muffler' ordinance

2017-An Ordinance Enacting The Revised Pasig Revenue Code

Race cars, show cars, 400cc bikes exempt from Manila Anti-Muffler Ordinance - Auto News

Manila City's 'Anti-Muffler' ordinance passed into law

Consultation Paper – LCO-CDO

The Spectator, Sept. 1970 - May 1971 by Hamilton College - Issuu