DC2R Exhaust Help

[t200]

About to buy the J's Racing FX60RS for my DC2R (I know theres like a 3-4 month wait).

I know i need to change the stock cat to a shorter one but wasn't too sure on the diameter of it. Do I need to get a 2.25" or 2.5" cat?

I would be using the stock AUDM headers until I get the J's or Toda headers later on. Would i need to change the cat again when i change headers?

[Bludger]

I would get the JDM headers in the wait time and install it all at once.

hassle free.

[dougie_504]

I'd do it all at once if I were you to reduce pain in ass of adjustments

[Bludger]

not to mention pointless, no power gain with using the restrictive stock header still.....

[mnc]

Buy a new cat and then buy a jdm flange kit to match it to your headers and exhaust.

2.5''. Something equivalent to the size of the of the stock jdm dc2r cat or smaller to be safe.

Jdm dc2r cats are old etc your best bet is to buy a new cat.

[t200]

Ok, I guess i'll the whole system in one go.

I know theres probably alot of threads on this but is J's Racing FX60rs, J's headers and 200 cell high flow cat louder than Spoon n1 muffler and b-pipe, spoon headers and 200 cell high flow cat?