SportTrac_46
Member
- Joined
- November 7, 2015
- Messages
- 17
- Reaction score
- 4
- Year, Model & Trim Level
- 2008 Sport Trac 4.6 XLT
Hello, this is my first post here so hello whomever may read this. 
I recently purchased an 08' Sport Trac with the 4.6 and of course I want to hear it. So I have already, the Gibson 319901 Catback system ready to install.
However, I am worried that I will end up exceeding my local sound restrictions of 92 dB @ 2000 (+/- 200) RPM. Using a basic dB level app on my phone indicates around 68-72 dB at idle and about 80-82 dB at about 2000 RPM with the stock system.
Could anyone that has this same setup chime in and possibly run the same tests to get a short "feel" of where I would end up at? Or maybe somebody knows the exact differences Stock vs Aftermarket. There is very little online for self research and I've already put in a couple days work searching around with little to no solid answers.
All help is greatly appreciated and I look forward to my time here at the forums.


I recently purchased an 08' Sport Trac with the 4.6 and of course I want to hear it. So I have already, the Gibson 319901 Catback system ready to install.
However, I am worried that I will end up exceeding my local sound restrictions of 92 dB @ 2000 (+/- 200) RPM. Using a basic dB level app on my phone indicates around 68-72 dB at idle and about 80-82 dB at about 2000 RPM with the stock system.
Could anyone that has this same setup chime in and possibly run the same tests to get a short "feel" of where I would end up at? Or maybe somebody knows the exact differences Stock vs Aftermarket. There is very little online for self research and I've already put in a couple days work searching around with little to no solid answers.
All help is greatly appreciated and I look forward to my time here at the forums.
