Muffler silencing

[r97]

looks like some people got a earlier model??
http://www.amazon.com/Scosche-SPL1000F-135DB-Max-Meter/dp/B001CMKFH8
this could be good, 1 not so good/good review,
http://www.amazon.com/Mini-Digital-Sound-Level-Meter/dp/B001THX3M0/ref=dp_cp_ob_e_image_1

 

[kendelrk]

you got the same pipe i do, but i got the mini rlv from online,