[Roll-Tide]

I've done it, but with a flowmaster muffler instead...but at least this will give you an idea of the difference it makes. I put mine in place of the rear cats (previously just had pipe in place of the rear cats), and it smoothed out the sound and virtually eliminated the CIS. I have since switched back to a Magnaflow muffler and still have no CIS...before having the bullets, I had tried two different magnaflow mufflers trying to get rid of the CIS sound with no luck....the bullets make a HUGE difference in that area at least!

The ones I used are 16" case length I believe and 2.25" inlet/outlet

Here ya go:

 

[Roll-Tide]

comparison of flowmaster vs magnaflow...both with bullets as resonators. i made a quick video of my new magnaflow with the bullets so you could hear it since the magnaflow and borla are similar in design..should help ya out hopefully....just put it together comparing it to the flowmaster for fun...