OK i thought i made a thread about this awhile ago but searched all my posts and couldnt find it. So Which of these companies make the best headers for 85 gsl 12A
Im
Monza -180$ (armor coat 299!!! << ) victoria british
Mazdatrix - 204$ http://www.mazdatrix.com/getprice.asp?partnum=16012
Racing Beat - 225 racing beat.com
Pace Setter- 243 http://www.racerwheel.com/p40-72c1070.html

I want the header that will give me the most power.

 

Monza and Pacesetter are the same....i beleive everyone will agree that RB is your best option.

 

Yes. I think 99% of the people here will tell you that Racing Beat is the way to go. The header that Mazdatrix sells, is a Racing Beat header. I guess that Mazdatrix is just a racing beat distributor. Either way just stay away from the Pacesetter junk. RB is the only way....

 

Monza parts are horrible. Go for the RB.

 

If you go for anything besides the RB system you are throwing your money away!

 

Well can someone explain what makes the rb header so much better? From my understanding its just a pipe with curves that direct the exhaust flow.

 

Racing beat has been around for a while now and they know there stuff. If you felt how heavy duty a racing beat header actually is you would know what I mean. They use very thick walled piping for there exhaust systems to hold up to the rotary exhaust heat. It seems like a bunch of money to spend but its one of the best modifications you can do to your car. Racing Beats products have always impressed me, like I said they are really heavy duty and they are one of the best when it comes to rotarys!

I should also mention that I have heard of Monza and Pacesetter headers burning right through the wall of the piping over time, or ending up with rust holes over time. The Racing beat system is way more resistant to this and it will last and last, its tried and tested like no other as well.

 

rb all the way, if price is an issue, keep an eye out on the classifieds section, used ones show up fairly often...

 

Myself and afew others have pacesetter/monza, mine is just the black finish and it's still black no rust.

Check ebay for deals! or your local forsale section on this site....

Personally I wouldn't pay over 200 for a header... you can get the kit for 88.00 at racing beat or mazdatrix for the weld your own type.

I have had a great experience with my header, I've had it for 5 years, and all the welds look fine..

 

ok jimmy how are your monza headers did u notice a significant gain in power and did the car sound better? What is your exhaust setup?

 

There is also SDJ, pricey, but supposedly gives more hp than any of the others.

 

Another vote for SDJ ... saving up for one ... the cost of the header plus a little bit more can get you a RB header, and exhaust for the about the same amount of money

Also the SDJ is an all SS as oppose to RB metal but the RB has been proven to last a long long time

 

I will go for the RB, they are nice... The best way to go, all the parts that I have buyed come from Mazdatrix or RB and I live in Guatemala City, Central America; you guys have the special gift of living in the big land of rotaries so go and buy with the best... RB

 

Will any of the headers bolt directly up to the stock cat?

 

As I know only the streetable ones will bolt to the cat, they also have the weld in bung for the air/fuel ratio sensor. Correct me if I am wrong...

 

It is unrealisticly more complicated than that, and RB knows how complicated it is. Pacesetter thinks they're just pipes that direct exhaust flow.

 

The SDJ is really a race header, it's not part of an exhaust "system" like RB offers, and as such has no provission for bolting to anything. You need to fabricate the "header-back" and clamp it to the header.
The SDJ is now offered by mazdamotorsports.com.

The SDJ will deliver max hp and noise. I'm at 103db at full song.

 

another good one to go with is the rotary engineering header.

 

I have an old RB 12a header, and a new cond. 13b pacesetter.

The RB is noticeably heavier, the engine flange is 7/16" and the outlet is 1/2", the
Pacesetter is 3/8" and 1/4".
RB tubeing measures an 1/8" best I can tell, and the PS 1/16".
Lighter is better, as long as it lasts, and dosen't leak.

The PS primaries are not equal length like the RB, but the PS are 6" longer before the
collector. The way they are collected looks better on the RB.

The RB tubes angle directly back on exit, the PS go straight out before they radius back.

Just my observations, I've never used either.

 

The car is louder than stock, my muffler is burnt out, so it's hard to say... my friends tell me it sounds like a street bike....

-pacesetter has a 2.5 inch out let.... only

-Rb is a dual pipe flange I believe...

Powerwise I'm not sure either because I usually do a bunch of mods at the same time, back then I did... intanke, exhaust, and manifold porting all at once. It made a difference but not super impressive.

To be honest, get whatever you can get a good deal on....

Besides if later on you decide to go turbo you'll have to dump it anyway. Which is what I'd recommend. Save your cash and piece together your own turbo kit.

I drive a stock port gsl-se with just about every bolt on, except for a turbo.... and my car is in the 14.7 second range..... AKA slow

I've spent sooooo much cash on junk bolt ons, ignition/flywheel/e-fan/intake/exhaust/inatke porting/body lightening/etc.... a FB with a stock t2 turbo will smoke me.....

 

as with headers for piston engines, the tubing must be equal length for best performance. RB is all i've ever used, and IMO, if the the header doesn't use equal length tubes, reguardless of manufacturer, u don't want it.

 

Go with a rotary house for your headers. Pacesetter, hooker, monza are not built to withstand the heat for the rotary exhasut which is ~2000 degrees F as opposed to ~1000 degrees F for a piston engine. Due to this extra heat most headers aren't designed to withstand the heat. Also, RB and Mazdatrix are the same RB header. I have the Rotary Engineering headers, that are now 15+ years old, still looking fine and working well because it was built like the RB header, thicker metal. Another point is the flow will be better tuned for the rotary when the header is designed by a rotary house. For the difference in price the PS or Monza headers are not a good deal, they won't last under hard use and they won't flow as well.

 

Hey, quick question. Does RB's streetable "collected" header have the same flange as the stock downpipe of the stock manifold?

 

12a header/13b stocker, its close, if you hold the header gasket in place on the stocker, otherwise it could move slightly into the exhaust path.
Stocker gasket on the header may be a better fit.
The two parts do fit together outlet to outlet. Not sure of the exact alignment
of the pipes though.
Sorry, don't have access to a 12a stock manifold, "probably" the same outlet.

 

I was told that equal lenght on a rotary was actually a bad thing, because the rotors aren't running at the stage, there for the pressure won't be equal at the collector. Especially bad in a turbo application, you'll have a slower spool up time. I guess on an N/A it might not make a difference on the header.

There is a rx7 racecar on here with a pacesetter, I think it's carl, he mentioned b4 that he put his header though hell, and even worse he used exhaust wrap which keeps the steel at higher temps and he never had a problem.