Does the racing beat header for the 85 12A meet up with the stock exhaust, or is it longer/shorter?

 

well they have 2 headers, the 'road race' header has two outlets, so you wouldn't want that one if you want to mate it to the stock exhaust.

not positive about the other one, but im sure someone else will know

nick

 

the header is longer, so it doesn't bolt up, unless you get the presilcencer with the header, but then you won't be running a cat... that probably didn't make much sense.

RB street header + presilcencer will bolt up to stock pipes (this would replace the cat)

Just header will not bolt up

 

Yeah, what he said. As Racing Beat (rightly) figures it, if you're putting in headers you're not street legal anyway, so you might as well ditch those restrictive cats while you are at it.

The presilencer/cat replacement pipe will hook up to the connector pipe that leads to the mufflers at the rear of where the main cat was.

If you choose to get the muffler, that will hook up just like stock too. From what I hear, if you get the RB header you NEED the RB muffler unless you like it loud.

 

Alright thanks. Yah im going to get rid of the cats, but im having a custom exhaust made the rest of the way back, no cats or anything, a muffler shop is making me a flanged mid-pipe, the whole system is "for racing use only" and I just needed to know if I needed to put on the header first as they will fit it to the one thats on it at the time, which would have been stock. Yah I know itll be loud, but this isnt a daily driver, this is only a weekend car...heh. Thanks again.

 

that's the way to go. What muffler are you using?

 

The shop offered me an awsome deal with a magnaflow. I figured its going to see most of its use on saturday nights (race night). I got a lot of friends who go there, they all seem to love the 7 more than me usually, lol. A lot of them can't wait to see the flames, which is way i was going to consider doign the exhaust before header, i want them too! But yah loudness isn't an issue, especially cause most of the civics out there are ungodly loud, and now I'll just "fit it" bahahahahaha

 

so if you buy the street header you dont need the downpipe? only that and the presilencer?

and how big is the performance difference between the road race and street series?
im not made of money at the moment so id like to upgrade the exhaust bit by bit, which would be hard with the road race, but very doable with the street series (ie, presilencer/downpipe or presilencer/header first, then y pipe, then new mufflers.

 

Stock port exhaust system:


Streetport exhaust system:


The road race stuff is also known as the street port stuff, which is meant more for the internally ported and modified engines. Its designed to move the power band into different spots in the RPM range by collecting the exhaust at different points. With the headers, the main difference between the streetable (stock port) and road race (street ported) headers is the fact the road roace header has two pipes and doesnt collect. The stock port header does. There is no header that Racing Beat sells that will bolt up to your stock exhaust without another piece. If you buy the header as well as the presilencer (stock port system), it will bolt up to the rest of the stock exhaust system (seen in the picture). The road race header has a special presilencer unit that is dual pipe as well, and replaces everything from the header to the muffler, and WILL NOT bolt to the stock muffler, it has to bolt to the road race muffler as well, where it finally collects (also seen in the picture).

To summarize, the stock system has the manifold, then the cats, then the stock single pipe shown in the first picture, then the muffler. The manifold is shorter than the header, so if you buy the header, it wont bolt to the cats, but if you buy the presilencer, then it will bolt to the stock pipe after the cats. The road roace **** wont bolt up to anything stock, no matter how you work it.

~T.J.

 

how does the street ported exhaust sound I just got one and am waiting for my new engine to put it on, is it much louder than stock

 

Street-ported exhaust is deeper in bass frequency. I bought mine back in 1998 and it gave a noticable power gain from my stock port engine. I decided on the "long" street-port system just in case a future engine swap included a street-port engine. If you bought the street-port system, you're in store for a buzz =) It's nice!

 

I had the single pipe system, and it was quieter than my stock system at an idle and low RPMs, very stock souding, however in the mid to upper RPMs it was still semi quiet, but deep and throaty I guess you could say. I would assume the streetport system would be similar.

~T.J.