I'm trying to decide weather I should get an exhaust or cold air intake first. What would you reccomend because I can't get both now because of a damn fine I have to pay...

 

Race track driving lessons first
Suspension upgrades next
Brake upgrades
Intake and exhaust are just for sound and appearance

This isn't what I did but I think this order makes more sense.

 

What's an Ehaust?

 

haha exhaust and I'm not even gonna try to make it any faster because the only thing worth makin it faster is to much for me to afford. If I was going for peer speed I wouldnt have got a rx-8 I would have got an evo or srt-4 and hopped that up Mainly I am just going for sound and looks...

 

If you set on a CAI or exhaust, then I would recommend an exhaust. I have a Rotary Perfomance mid pipe with Greddy SP2 catback. If I were to do this again, I would probably go with HKS Legamax instead of Greddy, but I can't justify buying another catback at the moment.

 

Exhaust first.

Oh my God the car actually sounds like a sports car now...........

 

I did a cheap intake first... only cause it was cheap... check out the Apex Filter in Stock Box thread

But I would have liked to get an exhaust first. It sounds and looks so much better than stock.

 

Considering that both the an intake and exhaust are mainly purchased for their sound effects on the car, i would say get neither if your aiming on improving performance on your rx-8.

but if thats not your goal...then go with a new exhaust, seeing as that between an aftermarket intake and exhaust you will be hearing a more significant difference in sound with an exhaust rather than with an intake. power-wise, you'll be getting around the same mediocrely tiny results. so might as well go with the one that sounds better :D

 

Between the two, exhaust.

 

I would say intake, because with just the exhaust your going to sound like everyone else who has just slapped an exhaust on their car, but with the intake it will be much more "engine" sound. If that makes sense.

 

I would not say you will see no gains, I picked up 22whp with a AEM + Turbo XS combo.

 

with your butt dyno?

 

22whp??????????i need to see a dyno for that

personally, and actually what i did do...i went with a resonated mid pipe...adds a little more noticeable power, and gave more of a performance sound (when cold it sounds buzzy tho)...i tried an intake with the k&n ver 1 and after 2 days took it off...im not going to go with a cat back because of the mid pipe...i dont want the car to sound toooo loud or ricey...its a daily car.

from reading on here, a stock intake with k&n filter and removing the baffles inside the box seems to be the best setup...the oem intake is a cai anyway. jus from personal experience with other cars intakes really only seem to be effective on cars with sucky/restrictive oem intakes, our intake isnt half bad from the start...why do you think the best/most recomended intake (racing beat) is like 90% identical to an oem box???

as far as exhaust goes, i personally only see it effective on either a turbo car, or somethin with a V8...esp on V8's plus it just complements the car's sound ie a Vette with a rumbling exhaust...im past the whole RSX with buzz can fadd now.

 

Dynojet

PM Mantis she has the sheets from our dyno day.

Our dynoday
http://www.flrx8club.net/forum/viewt...r=asc&start=60

 

Exhaust for better sound. After a while you will get used to it and want to swap the cat out for a midpipe

The an intake is a nice change too though..

 

I would chalk it up to other factors such as climate, or perhaps installing new sparks or coils as having a far more likely cause for the hp gain than the exhaust and intake. We already know removing the exhaust completely only increases power by 5 hp. Intake gains are in the neighborhood of 3 hp too.


I haven't seen dyno charts of gains with the factory cat removed, but I have doubts it gives us 12 hp. Otherwise a lot more people here would be pulling them off.


Anyway, given a choice between the two, I vote for exhaust. The intake isn't going to boost power anymore than the exhaust will on a NA car, but you'll get the audible increase that you seek.

 

The 22 is after correction, it was 27 uncorrected. I have not installed the new plugs,wires or packs yet. They are still sitting in the box. Polak and others have posted sheets showing a 17-24 whp, many on here called BS. I have seen it with my own eyes so did the other 8 people at the dyno day, so I guess what RB reports is not always fact. Donno, just know that is what the screen said after the pulls.

 

if you have the before and after dynojet files, load them up - you should be able to display the temps on each run, so we can see if climate played a role or not.

 

exhaust = 1 whp
CAI = 2 whp
midpipe = 3whp

 

back on topic...

I would do exhaust first as neither mod will give you all that much HP. Might as well go with what sounds / looks the best.

 

I'll just send them to you so you can view them in the dynojet software PM me an email addy, need to still get the newest file from Betsy just have the print out.

 

Midpipe. Remove your cat. and you'll see more performance gain over the intake or exhaust and it will definitely be louder. And it's cheaper.

Oh. And ignore DD. I do now and life is much better.

 

So your a poser?

 

How would he be a poser if he said he got the 8 knowing exactly what he was looking for?

 

wanting a nice exhaust note doesn't make one a poser.

if that were true, then anyone wanting a car that looked good and sounded good would be one.