I saw OBX header + dp for 195$ + shipping on ebay.

I saw that RRM sell header, but no downpipe?? If so i keep stock one? or make a custom one at exhaust shop?

Or i should only change nothing and keep stock one. ( headers + dp )

Since ill get a tune this spring, do it will be usefull or useless to change it or not.

I've got an High flow cat and 2.25" full catback.


What's your 2 cent guys?

 

I have the OBX header/dP.
The down pipe takes the place of your factory down pipe and your under car cat.
So you can not run a cat with the OBX setup.

This is how I am running, both ofmy cats have been removed.
It makes your car tons louder, be ready for that.

I'm sure the RRM one is good, I just can't see paying that much for a header.

I believe it will help in adding power once you are tuned.
I know my car is running rich as hell and needs a tune bad, but I've also done about 10 other things to it.
But once I am able to lean mine out, watch out.

I think the OBX is made good, though others have had trouble with it.
But remember you will run catless.

 

but i can run an high flow cat ? Or i should get an resonator?

 

RRM = Cat

OBX = No Cat

If you require a inspection/smog test in your state you should probably go with the RRM one. It uses the stock down pipe. It only eliminates the first cat on your exhaust header.

 

nah i dont got that inspection here.

 

OBX is a bit louder than RRM so its kind of up to you. I'm running a flow master and working on getting something else right now LOL

 

ahaha, making too much noise? :P i'm looking for dynomax.

So with OBX i cant run high flow, interesting

With RRM one, it do a good job with stock downpipe? or i would be better making a custom one?

 

The stock one should be fine but the obx sounds like it would run smoother (flow wise). No cat = no restrictions. Like i said, its really up to you. The flowmaster is too loud. I live on a reservation so anything goes LMAO!!!!!!!!!!!!!

 

sucks cuz i WAS going to get obx but i just realized that its not carb legal....california sucks sometimes