Lawson Industries 45275 INSYNERATOR High Performance Turbo Tube Muffler

I installed this on my 500 Pop in place of the factory resonator (direct fit), and I also have a small resonator in place of the factory muffler. I previously was using the a factory style resonator and the small resonator I just mentioned, but it was just too loud for my tastes. At idle, there is a nice growl and the noise level is just above the factory level. At speed, there is no drone and the noise level does not noticeably increase. Gas mileage has increases approximately 2mpg overall, and I'm sure part of this is because of the weight savings and because I can now hear the car to know when to shift gears instead of relying on the speedometer and tach. I do suggest this setup, and the only improvement I would recommend is look for the aluminized version of this muffler as the finish

Exactly as expected. Comes unpainted, which is good. The welds are high quality. No, this does not contain fiberglass. Nice rumble.

This muffler has a high quality durable welded construction, is painted, and the sound is not too loud like on the glasspack straight-pipe mufflers. It should also last a lot longer than a factory muffler and weighs a lot less, so that makes it harder for it to get loose or snap a hanger. The compact design makes it less likely to get hit by uneven pavement etc.

Great product, not too loud, the only problem I had was that there were no instructions or paperworknor were there any hanging accessories With it. That was not a big problem though, but it would have been nice to have.

This product came in bare aluminum. It was not powder coated black like the description said. Also it was poorly constructed on the inside.

This muffler is bad ass it gave my car that nice rubbling sound that I was looking for and also gave my car 10 more hp acordind to the dyno

I had a 1990 300zx Twin Turbo. These were the best mufflers I have ever used. Lots of torque, and they sounded better then any HKS or Greddy system.Why are these not available???? I want to buy more!!!The check out on Lawson site is not secure. I can't find these anywhere :( This really sux!!!!