Swap exhaust for proper V8 grumble - Magnaflow muffler welded in.
The GX460 has a 4.6L V8 but you'd never know it in stock form. Is it a Hellcat screamer or Coyote growler? Not really. But I do think it should at least SOUND like a V8. There's just something about a good V8 sound, not a straight piped obnoxious one, but a well tuned, healthy V8 sound... The GX is whisper quiet in stock form. While I certainly can appreciate the engineer's emphasis on luxury, I'm only here because: "capable offroader with V8" and any luxury is a bonus. I didn't buy this for posh walnut trim and heated and cooled seats... but I ain't complaining! I purchased a Magnaflow #11226 muffler. I could have gotten a slightly longer body version but I'd read several reviews so was confident it'd be ok. Worst case scenario I either weld in the stocker, take it to a pro to redo, or buy an off the shelf bolt on catback system. UPDATE: I recommend a longer muffler body. I should have gone with my gut and gotten a 18" or longer body. Ma...