Hi, i know it's not a good idea to be putting on a 2.5" mid pipe on a ls. I'm actually planning to do a b18c type r swap with jdm 4-1 header with 2.5" collector later when I have enough money.

Should I just put on this pipe now (i'm actually curious of how its goin to sound like) I have a type r axle back already on my car.

I don't even know if the this pipe will fit my stock cat.

Need some advice.

Thanks