has anyone welded their RB headers to a Bonez race pipe? if so, what was the outcome? and was it a good increase in power? from what i read, it seems that headers make a huge difference than from the stock manifold. as of now, im running a bonez race pipe to a apex gt spec, and i want a full exhuast system. should i get the RB headers and weld it to my pipe? or should i start off with a whole new set-up?

 

anyone?

 

Yea go ahead and geth the RB header, it will be a nice improvment. Car will be louder too.

 

thanx alot iceblue

 

I have it...it's mated to a Greddy Sp dual cat back. Absolutley screams after the 5th and 6th ports open.

 

Would that actuate the 5th and 6th ports? With the race pipe?

 

It think only S4 used backpressure to open the ports. Not sure.

 

He didn't specify.

 

84-88 use backpressure from the exhaust.

89-91 uses pressure from the air pump that was routed threw the emissions rack to vaccum selinoids to the ECU, which actuated the set-ups at the proper time.