Hunter4Life

Okay I have a 91 rx7 na and I am sure this question has been asked before but I was wondering if anyone could give me a good exhaust setup. Also is it worth it? I want to get some extra power and I was curious about the gains. I also don't want something insanely loud. Thanks for help in advance.

Omixeo

iTrader: (1)

Get a header. It will give you the biggest increase in power. Racing beat makes the best streetable header in my opinion. It's worth the money. After the header I would get a catback, any catback will do. They all pretty much give the same increase in power, which is not a lot, lol.

scrip7

iTrader: (6)

Racing Beat states on their website that you should use their header for carb applications and use their downpipe/presilencer instead for injected models. The only reason I can see for that might be for noise levels. Just a guess. Their exhaust systems are among the quietest. I have the RB system on my NA and love it.

mrduece88

The Corcksport catback is pretty good quality and good price IMO.

rspeed9i6

honestly it all comes down to the sound quality and looks...power gains are not really gonna matter wen it comes to na catback exhaust systems unless youre pushin big numbers...if you like the dual tip, subtle mellow sound, its Racing Beat ftw....corksport is actually pretty loud, more comparable with the apexi n1...generally single exit exhausts will be louder than duals...do what i did and youtube it all day for the sound clips...i have a custom 3in from hollow precat to 3in n1 with resonator...sounds deep and throaty in my t2...but not as loud and annoying as my straight pipe na...good luck!

anderdick88

iTrader: (3)

Hands Dowm Get a Racing Beat exhaust have them for all 2 of my 7, 1st 2nd gens, except my 3rd gen got a Greddy for that one and regret it, my 2nd is running a 3 rotor, with racing beat T2 mufflers and sound great not to loud but MEAN

rotary#10

iTrader: (38)

what about a bolra exhaust ?

scrip7

iTrader: (6)

To the OP, if it's power gains that you're after, most of the gains will come from removing the catalytic converters or installing a high-flow cat. The Racing Beat Y-pipe and mufflers is said to give an extra 7 hp alone, a modest increase.

Chuck

iTrader: (2)

Understand that, in an N/A, anything other than stock setup is going to be loud. Some louder than others. If this is a DD then you might want to consider that.

johnmasters

I have the Racing Beat NA Downpipe and pre-silencer with the stock cat-back and here is what I think...

I dont think that a header is worth messing with. The downpipe does the same job, costs less and is easier to install. The quality of the racing beat stuff is superior and there is really no sound difference with the stock cat-back. If you were paying retail and paying someone to install this stuff then I WOULDNT even consider doing it. The power gain on an NA is NOT worth paying retail. But if you buy the stuff used and install it yourself it is worth it. I have NO clue what power gain I may get when I install a racing beat cat-back but I would expect it to be very minimal..

jerd_hambone

I have a Racing Beat header and a full custom 2.5 exhaust with a Flowmaster and two glass packs.

Sounds pretty awesome, not too loud, but not too quiet.

Omixeo

iTrader: (1)

BS, I've had both on my car, and the header makes a tremendous difference. The stock exhaust manifold is shitty.

jerd_hambone

Yeah, the header and exhaust make for a very noticeable increase, especially on the but dyno. Don't know about real numbers, but it is noticeable.

RockLobster

iTrader: (7)

To the OP. This thread is filled with the usual misinformation so here are some facts to sort it all out.

Racing beat does not recommend headers for N/A cars that have mostly stock intake systems. A cone filter dose'nt count, what they are refering to is heavily ported motors with larger intake runners or full carb conversions. The reason being they have shown many times over on the dyno that headers do not increase power appreciably at all on mostly stock engines.

There are two appropriate questions when considering an exhaust for an N/A car.

1) How much noise do you want to tolerate?

2) Do you need to retain your emissions control equipment (cat converters).

IMO the best exhaust for the money is Racing Beat. It will last the longest, and sound the best. It is noisier than stock but not offensively so compared to most after market exhausts. The only downside is the N/A systems are relatively heavy. The other reason to go racing beat are the stainless steel packed mufflers made with full SS construction. The life of Custom exhausts with typical performance or "Turbo" mufflers on N/A rotary engines have been measured in hours. They burn up most muffler packing materials quite easily.

There are other, lighter, exhaust systems that will last fairly well and give similar power increases but they are quite loud.

The biggest power increase (via exhaust upgrades) for otherwise mostly stock cars is getting rid of the cats. But again you have to balance noise with power increase.

So if you can swing it, get the racing beat cat-back, downpipe, and presilencer. You will be quite happy and it will outlast the rest of the car.