where to get the quietest muffler

[zanch]

Problem ko rin yan sa oto ko. My nissan mechanic recommends titanium mufflers made in Clark, Pampanga. Di ko lang alam kung saan meron dito sa Manila. Mga scrap US aircraft parts daw ito turned ito mufflers. Kahit anong muffler after 2 or 3 years umiingay daw unlike yung titanium kasi di basta nag o-oxidize at lightweight pa.

Anynews where in Clark yung titanium mufflers bro?