For the air cleaner I have the Mopar open round air cleaner like Silver has. With the stock tb i had alot of air sucking sound even at normal acceleration, almost sounded like turbo's. But now with the Fastman 52mm / 50mm tb i dont hear the air sucking in anymore, maybe just a slight (very ) sucking noise.....very faint. It's just too bad I still have the stock rear diff gears with these 285 size tires, kinda robs the performance since it takes more power to turn the bigger tires versus stock size tires.

 

I just had the Stock muffler replaced with a magnaflow, I can't hear any engine noise anymore.
She-who-must-be-obeyed probably won't be too thrilled with this one, I'll tell her it improves my gas mileage. The cat's next week...

 

Just got a reply from Dan today and he said that my online order was for the 52mm, so I guess I goofed. I thought I selected the 50mm tb but oviously not. So now I'll have more top end performance than lowend torque. I can live with that. I think I'm getting better fuel mileage this way too. Its been 1 1/2 weeks on a full tank of gas so far for me and I dont remember going this far on 1 tank of gas.