Js 70RR or nah

[Jax-dc5r]

You are missing the 2-1 pipe that links to the cat.

Exactly I could just get a trusted exhaust shop, luckily I have one that deal with these car everyday to make one and weld in a cat could I not?
I also wonder if I should spend the extra money on ti version :/

[EGG5]

Exactly I could just get a trusted exhaust shop, luckily I have one that deal with these car everyday to make one and weld in a cat could I not?
I also wonder if I should spend the extra money on ti version :/

Wait so you just have the 4-2? Didn't you buy the whole 4-2-1 system including the cat? and if you bought a JDM K20A, did it come with headers? If it did there should be the whole 4-2-1 system