what is the differents between racing beat road race and the streetable header? do they bolt onto the cat? will they still open the 5 and 6 port

 

i believe road race is true duel where street goes 2=>1 so it can go into the cat (but doesnt fit nonethe less) its less loud though

 

why does RB not recomend their header for fuel injected engines?

 

so will the header still open the 5 and 6 ports

thanks

 

the RB street header doesn't bolt up to the cat?????????????? ????????????????????????

this is no good


can anyone confirm this statement??

 

its true and it says it right on their site! you need to buy the racing beat presilencer or have a pipe made using a set of flanges. I say you get the presilencer because thats where the actuation for the six ports comes from. Its the small tube coming off your cat. The presilencer and header combo is what I just put on my 88 and it sounds brutal!

 

The Race header has a port for opening the 6p mounted on the pipe coming out of the front rotor. The Street header has it on the presilencer.

 

so does that road race header fit the stock cat location....looks like it from my view...maybe im goin crazy

 

The header will not bolt directly to the main cat. You will have to weld a couple inches of pipe onto one side and a flange. Its not too hard, only took me about an hour ( and I suck at welding). Oh yea....and its LOUD

 

so u can connect the header to a, down pipe which connects to the, pre silencer which conects to the, y-pipe
RIGHT.............. does that sound like a good set up all of them by racing beat.......

 

UHm, I dunno if youd want to call it a downpipe. There is maybe like 5 inches or something between the flange on the header and the main cat. If you get the pre-silencer, it connects from the header to the Y-Pipe, bypassing the cat. This is not emissions legal, so for me I needed to have a cat. I happen to have had a Bonez High-flow cat, so I welded the 5 inches of pipe that I needed to the one side, and a flange. Ill draw a diagram for ya

 

here ya go....

 

The header is worth it but on some cars it will make it buzz like a honda my friend had one he got for free....It made his car buzz bad but the good point it helped his top end out so much

 

i have the same problem.......my header has a leak in it.....i need an exhaust manifold to put the bonez **** on there that i want

 

i went today to order the header but it turns out my car started running like crap. Bad idle problems when starting the car after its been wormed up. turning over then stopping. So i have to work with this problemm now maybe you guys can help.

 

Anyone know if the RB headers will bolt up to a bonez high flow cat (one that replaces all the cats on the stock rx-7 n/a, which it bolts up to the original headers) ?

 

No.

 

A Bonez high-flow cat only replaces the main cat. Now if you get a system, such as the superflow, this replaces the 2 pre-cats with a silencer, and the main cat with a high-flow cat. It bolts from the stock exhaust manifold to Y-pipe. I had this before I got my header, and hacked it up to get the cat.

 

Mazdatrix sells cats for headers in their "grey area" exhaust section. Also, I believe Mindtrain headers bolt up to the cat.

 

Thats cool, I didnt know that.

 

Surprisingly, not many look in that section of their catalog. I wish they made a Header/Collector DIY Kit... that'd be really nice.

 

Kevin over at Rotary Resurrection has my whole exhaust set up from my GXL Street Port Project, Its a custom made kit, it sounded killer and flowed great. Its a true dual RB header back to 2 resinators, to fight the loudness, then back to twin apexi n1 90mm. Not knock offs. If anyone is interested email him, hypntyz@charter.net, tell him its about groundzeros exhaust.
LAter
GZ

 

I had the Bonez hi-cat in my car...that is before my precat blew apart and clogged by cat..

Anyway, I am planning to get a new cat using the bonez flanges and pipes.

Rxmfn7.
Can you please measure the lenght of your cat assy from the begining y-pipe to the end of the header. I want to fab the pipe myself but needs the spec.

Thanks!