kleach18

Ok I have a streetported 90 NA, which header would I benifit most from? I'm sure there is someone that may know the difference that one of these could make on my car. Which one should I go with????

Thanks
Kris

nitroracer

iTrader: (5)

go for race beat.. they look cool in the crome ones.

kleach18

Yeah, I'm gonna get a racing beat header, its just which one to get? The only difference I see is that the streetable header has a collector already welded on it. Is that the only difference?? Would the only reason for me to get a road race header be to go true duals?

marcus219

Yes, true duals seems to give the best hp gains...

marcus219

I'm running the RB streetable header with a RB pre-silecner, 2.5 piping..very satisfied with power gains. Although I wish I would have just saved the $$ for the j-spec...

kleach18

Yeah I understand true duals would be the way to go but are the streetable header and the road race header the same except for the collector? Like lengths of tubing?

kleach18

bump

mazdaspeed7

Duals are NOT the way to go. https://www.rx7club.com/forum/showth...hreadid=170374 Read that before you ask any more exhaust questions.

marcus219

interesting...

j200pruf

iTrader: (4)

If you set up an exhaust for a street port, but don't have a street port yet, will it kill your power?

SoRRoW

The headers from RacingBeat are not made to be used with the 6 port actuators if you plan on running them ,if so youhave to buy mazda trix modded RacingBeat header.

http://mazdatrix.com/getprice.asp?partnum=16127-6PMOD

http://mazdatrix.com/r-8.htm

(13B with 6-Port Actuation and O2 sensor fitting)

eljefe62

I think the difference between street and road race is that the streetable header has the O2 bung, if you have stock ecu (ie no haltech or etc) you probably will need this one

mazdaspeed7

No. The road race header does not have a collector, not does it have O2 sensor bung or the 6 port actuation. Mazdatrix offers both of these mods to the road race headers, or you can get it doen at an exhaust shop when they do your exhaust.

The RB street header is collected, and I consider it only suited for mildly modded street cars. If performance is an issue, you should get a proper tuned exhaust.

mazdaspeed7

Kleach18, PM me if you would like to hear my recommendation on an exhust for you.