Hey acurazine,

Currently, my 04 TL AT is straight pipe from the 3rd CAT, up to my two n1 mufflers and it's quite loud. It was VERY loud when i first got the mufflers on and the straight pipe but now 9 months later, it doesn't sound as loud as it used to be. i was thinking of changing things up a bit and taking off my mufflers and adding on just straight piping. Anyone know how that would sound? I found several videos on youtube on people straight piping, but most of these guys just kept the OEM exhaust tips and i dont want that look, i want just straight piping.

But most of all, how do you think it will sound? With this set up, itll be a straight pipe from the 3rd cat. What piping should i go for? 2.5', 2.75' or 3?

 

If you're looking to make the car even louder than it already is, 3" straight piping will probably do the trick. Be prepared for excessive drone though, unless you weld in a couple resonators. We have our XLR8 exhaust that features 2.5" midpipe with 2.25" axlebacks, though it sounds like you're looking for something with no mufflers or resonators.

XLR8 Exhaust Systems - Excelerate - HOA - Japanese Performance Specialist

 

i'm used to the drone haha, it sucks because the drone used to be super heavy inside the cabin, but after these 9 months owning the car, the drone is like gone. my car doesnt sound loud anymore and i dont really like it. Only sounds loud when i WOT but theres never really many instances when i WOT. Why 3 inch as opposed to a 2.5? bigger pipe means more noise?

and to be honest, i'm going for something really loud, not just a subtle loud. Thats why im considering this straight pipe

 

I'm straight piped from the j-pipe back, no resonators, 2.5" piping, running to a single exit HKS Hi-Power muffler - i don't get much drone and no rasp, but is louder than most, and pretty aggressive....http://vid84.photobucket.com/albums/...KS%20Final.mp4

 

This guy said he went 2.5 from the cat back...
https://youtu.be/p3FofrtsSI0