my question follows:
Which header set up is better the racing beat or the corksport?

"During testing a 1990 Rx7 with no modifications and 114k showed gains of 14 wheel HP on the dyno." per the corksport web site. any clue on what the rb headers give in forms of hp gains?

 

they say an 18% gain or something like that...i have the RB "streetable" header with presilencer and apexi n1 evolution exhaust, and it pulls to 7k alot harder than it did before.

 

I've been pondering a header myself and while both RB and Corksport look like quality parts, I'm partial to the Corksport (or the cheaper knockoff, OBX) because you can use the stock cat between it and the y-pipe.
The Racing Beat requires their special presilencer or a custom cat to complete the system.

 

Who needs cats? I like my RB header, haven't compared it to the corksport.

 

I do.
Not only must I pass a biannual smog test till 2016 when my car turns 25 but we also have roadside sniffers that can fail you anytime...three bad readings from one of them and you get hauled in for a formal test.

I'm sure the RB header is very nice but the ability to run a cat is very important to some of us.

 

I know I was just kidding, I've got to reinstall my stock exhaust to go through the DEQ in 9 months. Exhaust smells real bad, good thing I don't drive more than once or twice a week...

 

I have a RB header #16130 for sale if you guys need one...

 

You've got a PM.

 

Pics sent

 

~25 wHP for a full exhaust minus 7-8 for the mufflers equals 16-18 wHP. But that may just be an error in rounding or estimation and the RB header could very well give the same as the Corksport. The power comes almost entirely from eliminating the cat. RB says their downpipe gives the same amount on fuel injected vehicles and recommends it as a cheaper option if you're not gonna go carbeurated.