the spd downpipes and adaptors with this
Linky Is the ticket.
If I hadn't destroyed my factory resonator, I would have retained it, but I'm now using the borla resonator.
The spooling sound is a resonator delete too.
If you delete the resonator, get ready for a level of droning that gets pretty annoying.
Disclaimer: SPD supported my build. Even if they didn't, I would have happily paid for the parts. I tried many exhaust combos. The SPD/wraith combo is the only one that survived more than one baja trip. I've had the SPD bits on my truck now for almost a year and I've had zero issues.
If you run foutz skids, buy some hockey pucks and longer bolts to space them down a little. ( the foutz skids tuck up more than an inch higher than the factory skids.)