Speedboosted
Found missing cylinders
I know I'm a little late, but figured I could give you my .02 cents. I've had my FR500S axlebacks since the car was stock. I've always loved the sound they produce over any other as far as just an axleback is concerned. When I went to an O/R X pipe, it was still great and never had any drone, it was just too loud when I had my son in the car. He was 2 or 3 at the time and liked to ride with me a lot. So I welded in some Pypes M80 resonators and that took the volume down a hair, but it still had the same amazing sound. Fast forward a bit and now I'm running Kooks LTs with O/R X pipe and honestly, it's a little quieter than I would like it. Start up is great, and at WOT it's awesome, but just cruising, it almost makes me want to either take the resonators out or get rid of the mufflers and just do a muffler delete. Not sure why it's quieter because I was anticipating the complete opposite, but that's what happened. Anyways, let me know if you'd like a video and I can try to help you out. Good luck!
We should swap OTA's, mines still pretty damn loud. Lol