Lol mine are welded. You can rev an engine and idle all day. What really matters is at load. I'm switched now to a chamber setup guy. I had roush which were like the ataks but with no filling. I find the catless H pipe with no drone to be a a little far fetched. I've heard 2 of them and they drone like crazy. I like your setup but just the revving of borla, just sounds like not enough air is coming out to really produce any real gains besides sound. As my muffler shop guy stated, most all exhaust will drone to a degree as far as axle backs and especially on these new 3.7 engines going up hills. +1 to adding radio. Especially with the shaker 500

---------- Post added at 02:33 PM ---------- Previous post was at 02:30 PM ---------- But it's not some import sound either. It sounds like my dad's 454 at idle with the depth. The chevelle has a big cam in it though and is well a big block Chevy. But the depth is down there. The harmonics are at 1-2-3-1-2-3, etc vs 1-2-3-4 etc of a v8. Counting the notes it's a 3/4 time signature like in music and the 4/4 of the v8. This is why people like it more and the depth from stock and why people love that pop music so much.