Save your lunch money for the full Racing Beat RoadRace system thing. I got the whole setup. Each piece is like $225 or so. Header, Pre-silencer, Y-pipe & 2 mufflers. It was beautiful to see & sounded sweet. It has an air tube from the header to actuate your 5th & 6th ports. The muffler cans are huge & really look good under my car.

Ramses666

 

the muffler cans are huge? are you talking about the Racing Beat mufflers? b/c they dont look all that big to me.. they look stock-like and not as aggressive as the n1 look

 

show me some pics of your exhausts

 

If you are dead set on a single exhaust, heres how I would do it:

-RB Header
-RB Pre silencer (it does makes a HUGHE difference, been there done that)
-Dynomax Ultra Flow SS round muffler #17263, if you can fit #17298 instead of the first one, even better, but I am not sure if that is possible. This one would be your catback.

The largest wall tubing you use the better!

 

Definetly wouldn't do another exhaust without the Racing Beat presilencer. I've done it both ways(straight pipe and presilencer) and there was a huge difference between the two. There is definetly more than a 3%(as quoted by bingoboy) difference.

 

Also there is the http://www.rx7.com RP racing catback. It sounds nice and is affordable, like the Walker Dynomax exhaust.

 

RP Race-only Exhaust by GReddy
Price: $874.95

are you talking about this? haah affordable hmm

 

oohh sorry.. that was an FD exhaust.. hah nevermind

 

anyone ever had an A'PEXi GT racing exhaust installed... it has an integrated presilencer .. any thoughts/ ideas? also, I might just get this:

Bönez Catalytic Converter only - for use with Racing Beat Street Header
Price: $250.00
(so i can keep it good for smog checks/legality.. maybe.. or just the RB presilencers, whichever is the better trade-off)

 

I don't care what anyone says, get the RB presilencer. The Apex system has a resonator, not a presilencer. It helps with the sound, but it doesnt really quiet it down. Any system without some kind of presilencer is going to be rediculously loud and have a raspy sound to it. I have run with and without it, and the difference is night and day. Also, the RB presilencer is the only system I've seen that properly operates the aux. ports with a low backpressure system. This is because it has a tube that captures the exhaust instead of just a hole on the side like most systems.
I think you should definately get the RB presilencer. Its possible to find one used if you look around. As for the cat backs, go with a dual setup. Any single you get is going to be pretty loud. Its still tolerable, and not to the point of earplugs like one person said (unless you dont have a presilencer or have a leak somewhere), but is still louder than most people would like.
EDIT: I jsut saw that you live in California. In that case, I would recommend getting a cat instead. Be careful of Bonez parts. From my experience, they arent as high quality as others such as RB. I had a Bonez racepipe/presilencer, and the flange that connected to the exhaust manifold warped due to the heat of the exhaust, so I had a pretty good exhaust leak. Just make sure the flanges are nice and thick before you get any exhaust part.

 

what kind of high-flow cat would you recommend Sideways7? For smog.. would a presilencer do me justice? or would it be more worthwhile to get a cat?

 

let's deal with this once and for all......WHAT DO YOU WANT TO DO WITH THIS CAR? DAILY DRIVER, RACECAR?

 

If you have any emmisions testing at all, you have to have a cat. I only have a presilencer, and if the wind blows wrong my eyes start watering from the exhaust. It would prob set off the sniffer from across the street.
I'm no expert on cats, but I'm sure theres some other people around that know. The Bonez cat should be ok since its a good pit farther down the line than the race pipe was. I was just letting you know to keep an eye out for it.
Like racer said, what are you gonna use this for? If its just a daily driver that doesn't see huge amounts of redline time, the bonez is should be ok. My car was primarily track driven for the time it had the bonez pipe which I'm sure caused it to warp faster than normal.

 

will an S5 exhaust fit on an S4??

 

I just thought about the fact that most cats are made for the stock system, not one with a header. The Bonez cat is actually designed to bolt up correctly to the RB header. I guess someone said that earlier but I didnt register it. As he said, its $250. I think that will be your best bet, since you live in California. I guess you could always get the presilencer and then buy the cat later to swap out for emissions, whichever you want.

 

I'm really not sure, I think it depends on which part it is. I think they should work. The main difference I know of is that the S4 parts have an extra tube that operates the aux ports.

 

If you are getting a header, do it right and get the pre silencer (either the RB or a Borla custom made), NO OTHER WAY AROUND IT. Just do what most people do, change the pre silencer in order for a catalytic converter when necessary.

For the cat, you can either get one that is "replaceable" with the RB pre silencer, or make custom adapter to fill the gap in between the header and the stock main cat.

 

yea.. i dont see any track time at all... its for mostly street driving.. and fun times in between ahah .. but yea.. i had a little hesitation in acceleration before, and the presilencer might solve that problem.. But, living in California, and having emissions testing, the Bones high-flow cat would be handy.. and might hold up better for me because i don't take the car to the track or race daily / often. I was hoping to have a single exit exhaust to deal with backpressure and opening up the ports.

 

Basically, any type of high flow cat-back system will not open the aux ports properly. The only system I know that does is the RB system, and it will work them without any catback at all. I've done it. I'd say that if you are on a limited budget, just get the bonez cat. Otherwise, get the presilencer and the cat, and switch in the cat for emissions testing.

 

haha well is there anyway i can have the presilencer with the port activators.. and also have a catalytic converter for the sake of emissions?

 

 

aha noo .. i meant with both integrated .. im not that stupid

 

well .. i might just get the presilencer first... and when it comes time to smog.. i'll swap in the Bones high-flow cat to pass emissions... I'm only 17 so what do i know right.. but yea. . . i'm trying to get an RB catback system for $300 shipped ... others are interested too.. but it's worth a try.. good deal

 

Theres either a presilencer or a cat, they go in the same place, but I'm pretty sure the Bonez cat has the adapter to operate the aux ports. The place that sells them is www.RX7.com, which is the website for Rotary Performance near Dallas Texas. You can call them up to make sure.

 

Get the RB presilencer/cat replacement pipe combo and the RB catback.

When it's time for emissions testing throw in a cat where the presilencer would go.

There is definitely a huge performance gain once you have a free flowing exhaust.

I've got a RB presilencer/cat replacement pipe going to a stock y-pipe with ebay straight through mufflers and it is loud, but not raspy and ricey. I'm waiting for someone to sell me a used RB catback as we speak. All in all I'm very happy with the products I've received from Racing Beat.