sam dupont
Well-Known Member
I wonder about capped glass packs in place of the pipes
Others maybe. Not me!I didn't even know there was a calculator when I did mine. I just copied what someone else did and went with a fixed 28 inches. It might not be fully optimal, but I noticed a big reduction in drone. Either way you go, make sure you or your exhaust shop weld up both vertical hangers as well as horizontal connector tabs between these and the main exhaust. The first shop I had do mine only did one vertical hanger and in less than a year one side broke free and would rattle at certain RPM's. I didn't realize that's what it was for several years and that noise drove me crazy until I was under the car one day. My new exhaust guy secured it correctly and now I could do pull ups off of that thing.
I'm glad this topic is getting some interest because back when I did mine people thought I was nuts and looked at me like I was building an alien spacecraft. Science!
Might work really well. Expensive way to go compared to a couple lengths of exhaust tubing.I wonder about capped glass packs in place of the pipes
I totally agree and from my experience the OEM exhaust tips have a lot to do with it, really shapes the sound.Of all the muscle cars I’ve heard (and a few I had) having a stock exhaust, the RR/GTX was the best sounding of all, MO. Buddy had a ’69 GTX back in the day that sounded sweet, nice tone, not obnoxious, but enough to make a statement.
One of my hotrods had a terrible harmonic at 1800 RPM, I took the back seat out and covered the area above the mufflers with Kilmat
sound deadening, made a dramatic difference.