Which muffler did I have?

Nozzledog Posted 2011-01-24 10:29 PM (#78089) Subject: Which muffler did I have? Visionary Posts: 1229 Rancho Cucamonga, CA So I took off my stock mufflers today to do the Thrush mod, and noticed that they are straight through pipes with a thin screen at the end and are stamped with the words "For closed course use only". I'm guessing these aren't stock. Are they L1S1? They still have the stock tip. The sound of the Thrushes are still better - deeper but not really louder. VisionTex Posted 2011-01-25 8:51 AM (#78102 - in reply to #78089) Subject: RE: Which muffler did I have? Visionary Posts: 1484 LaPorte,Tx. Sounds like you had S1L1.