I have a 2015 Silverado hd2500 6.0 has engine. Factory muffler was replaced with a Magnaflow 3.5” single in/out muffler.
Truck sounded great but the highway drone was unbearable at 60-75mph.
I inserted the auger and the drone went away. Truck was 9db quieter at idle and likely even dropped more dB at highway speeds compared to without the insert.
If you’re anting to quiet a vehicle down or remove the dreaded highway drone noise, get one of thee.
May 07, 2009
Niles ZR 4630 Receiver & Solo Keypads
Excellent choice for a multizone system. Nice,clean and simple. The Solo keypads are easy to use and and programming is a breeze.Easy installation even if you have no previous wiring experience. All necessary connectors and crimping tool are available at Lowe's and Home Depot. The only drawback is the inability to adjust treble, mids and bass.
I have an 88 cutlass with a Turbo LS and this brace drastically reduces the dreaded gbody twist when launching. My car goes straight as an arrow now!! Great product, highly recommend.