Car Chemistry inserts

[PatrickMx]

I run the inserts, and 36" straight tube 2.5 swirl glass pack type mufflers. I have NO drone anywhere, and is very quiet. I had 3 chamber Flo's. Terrible drone. I would recommend only using the 25" tubes. The tubes are in no way related to Car Chemistry. I just found a muffler shop that mounts them. Make sure they have the swirl design. I lost no power. My ET's are actually consistent, and if anything a little more, but only testing on a vericom, and g-tech. My EEC tuner datalog tells me I am a little leaner now, so I know I am flowing more. But havent corrected the A/F mixture to compensate. So I know there is more power there. I mounted the inserts before the tubes. My exhaust is completely straight through. No mufflers. I run an X-pipe. I wouldnt try this with an H-pipe. My other car was a tad louder with the H, but now has an x-too.