eco-charged

So when you floor it the exhaust doesnt sound like a rice burner?

Half_ton

No, but it still sounds like a v6.

eco-charged

Touché

hddude103

Thanks for your replies. Unfortunately, I purchased the catted chambered turbo back system back in November. The install went smoothly but the cabin drone was awful. Cruising at light load highway speed was good but I ended up installing a 18 inch resonator to quiet it down. The cat codes were tossed within the first week and I had to have the tunes adjusted to turn the CEL off. If I knew the cats were inefficient I would have bought the un-catted version. When I contacted the people at Steelworks they said that they sold 2000 sets and never had a problem. They said It was a leak or something else but not their product.....so much for pipe warrantee replacement

MAK Performance

Like we posted ealier in the thread, the CEL cat codes should have been expected, its not that they are inefficient, that is just the code the rear o2s throw in that situation. Any time you switch from Factory Cats to High Flow or Offroad the rear o2 sensors will act up since they are calibrated to function with factory catalytic converters, upon being removed the airflow through the sensor changes, and makes the sensor think it is not functioning correctly. You should have had a tune for it from the beginning.

The chambered does drone a little more than the s-tube. The s-tube is not much louder at all. I would find out about just swapping the muffler to an S-tube. That muffler does not drone at all.