Truck-RV 8000 Muffler
Developed to give you the high performance you want without sacrificing the interior sound level comfort you enjoy. The SpinTech Truck/RV 8000 Muffler makes great SOUND under acceleration, yet at highway speeds you hardly hear it! Works extremely well on all BIG BLOCKS and V-10s!
Case size: 4"x 10.5" x 20"
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I put a new dual 2 1/4"exhaust on a '76 4x4 suburban with a 400 small block using the 8000 rv series. With an x-pipe and a full length system, this rig is so quiet now! I was looking for quiet performance because when friends and family pile in, no one is trying to talk over the noise from the exhaust. My suburban is more responsive and sounds great! Thank you Spin Tech for having various mufflers for everything from my commuter to my race car!
I installed the 3" dual in dual out on the truck to a factory tailpipe. The spacing was wider than factory but not detrimental and easily overcome. The sound of this muffler is awesome and it handles the big block 496 with ease. The drone in the cab is minimal and very livable. I needed something a little more than factory and got just that (and maybe a little more) with this muffler. Great product!
2004 Dodge ram 1500 4.7 v8. Single 2.5 in and out, single tailpipe. Really has a nice deep rumble that you don't get with flowmaster or others. Quiet at idle. It is reasonably loud only when you are on the gas. When at idle or cruise it seems really quiet. And really wakes up when on the gas only. So far i'm very pleased. Definitely a light rumble at speed but no drone. Makes my little 4.7 sound much deeper and bigger than it is.
Very Heavy construction, definitely expect this to be the last muffler my RV will need. Shipping was timely, this baby and my new headers woke my Olds 455 up!