Clarification about aftermarket Header and Catalytic Converter for DC2R

[saad]

Hey guys

I have a J's Racing 60RS catback, bolted to the stock cat and headers.

As I understand, if I was to replace the headers, I would need to get a new cat, a shorter one, as headers are JDM spec so are longer, thus our AUDM cat is too long?

Is this right or have I misread everything?

Cheers

Saad

[Tai]

Taht is correct.

If you get a JDM branded header or JDM Standard headers you will need a JDM cat or Aftermarket cat designed for JDM model headers.

[saad]

Excellents thanks a lot. What cat would you recommend - i suppose it doesnt really matter as long at it has the right flange and length which is 2.75" flange? Not sure about length though

[LAGOOT]

many people opt for the JDM ITR cat which pretty much bolts a whole JDM manufactured exhaust system together.
some people buy different types of cats (SMSP, xforce, catco, etc) and get flanges made to suit their headers and catbacks.

[mnc]

Don't get why people still buy used old jdm dc2r cat.

In My Honest Opinon! why not settle for a brand new better flowing cat?

Note* If your car is low you should settle for an oval designed cat eg. magnaflow or the jdm dc2r cat

Better ground clearance by a bit =]

[MM89]

because it's cheap and welding job is not tacky like you would find on most custom cats.

jdm dc2r cat is perfect fit for jdm header and catback and many people push fairly high amounts of power through these cats.

so your options are:

JDM DC2R cat, custom cat, JDM branded cat (SARD is the only one i know of to make one for DC2R, but I'm sure there's others out there) JDM test pipe, JDM baffled test pipe (T1R, Kakimoto etc)

[saad]

I think Ill go JDM cat thanks guys

[saad]

Also, just quickly, can drone be caused by a lack of a cat? My 60RS drones a lot at 3-4000RPM, and my mechanic told me my car doesnt have a cat when he installed the exhaust

[Tai]

What headers do you also have for the car??

Did previous owner have test pipe?

[saad]

Right now the headers are stock. My mechanic said the car has a test pipe, and there is a bit of black.brown staining on the bumper above the exhaust tip. Ill need to get under the car to confirm though. If there isn;t a bulge then yeah test pipe. Its just the car is really really loud!

[Tai]

No offsense but you suck hard at explaining your situations.

If your mechanic says you have a test pipe then you have a test pipe.

Shoudl of just said that earlier instead of I don't have a cat * facepalm*

Test pipes are illegal and if a cop detects it you will get a massive fine.

[saad]

Sorry bro, havent slept.

I know they are illegal, but when I went to have the car rego inspected, it passed the emissions sections, which is why Im doubtful and unsure if there is a test pipe