I was wondering if anyone has the AEM cold air intake and the Agency power full exhaust including the midpipe that comes with it one their car. I've seen videos on youtube about how the car would sound with one or the other and then other vids when i can't tell if they have everything on. I just wanna know if it sounds good, if the cel goes on, and if possible could anyone who has this setup post a video up.

Thanks

 

My first intake/exhaust setup was the AEM intake and full AP exhaust.
The mid-pipe was too loud to hear the intake sound, but the AEM is still a good intake.
And yes... you'll get a CEL (unless you mask it with the AccessPort or black electrical tape)

 

My first mod was the AEM intake. I don't buy into that ram-air bullshit for one second. You're just sucking in slightly more hot air than before, and most of them have the MAF sensor WAY too close to the air filter. You might lose horsepower if it throws off your readings.

Sound I think is the AEM's best quality. Much deeper sound and slightly louder when you're on the throttle, otherwise perfectly quiet. You might gain a few horsepower from it. I got mine in red for some added bling under the hood too.

I don't remember if it throws a CEL or not. If it does, your ECU should adapt and eventually shut the CEL off. The AEM is probably more of a pain to install than the ram-air type intakes, but its way worth it in my opinion.

 

I'm confused about this statement.

 

Oops. Ram-air intake*. I don't like the idea. Chances of gaining horsepower with either a cold-air or ram-air are going to be small, but you're way more likely to make power with a true cold-air intake.

 

i think its worth noting in case the OP is new to the car, that when they are saying a few HP with the intake, they are talking about 2-5HP. intake and exhaust that includes midpipe can get you maybe 15ish. a little more if you tune accordingly

 

Question:

I see a lot of people claiming different horsepower numbers for different mods and such. From what I can tell a full exhaust system (the header and everything back) gets you 12-15 rwhp, the Cobb AP gets another 9-12, a good ignition upgrade is about another 10, an intake, underdrive pulley, and flywheel add maybe another 5-7, etc.

So why is everyone so certain that 300 bhp is completely out of the question and not even close to possible for the RX8? With a mid-pipe, intake, and AP tune people are claiming ~200 rwhp. And for whatever reason the drivelines for RX8's are supposed to sap a lot of power. With 232 bhp it SHOULD lay down around 200 rwhp in stock form, and the average RX8 makes what 180 rwhp? So I'm guessing with 200 rwhp its closer to 250 bhp. Are we sure 300 bhp is just utterly impossible?

 

I know that the intake and full exhaust won't add a lot of hp i'm doin it more for making the car sound nice. I already have the AEM CAI in my RX8, my friend and I installed it ourselves. I didn't feel like payin a mechanic money on something i can do myself. I know that the Agency power exhaust is already loud without the midpipe, but idk just how loud it will be. Does anyone know anything loud enough to compare it to? Oh and Jon by using black electrical tape you do mean just putting tape over it rite lol. Is it bad for the car to have a cel due to havin the midpipe on for long? Red Rex i agree with u the CAI sounds better and I like it, a friend of mine was rite next to the engine and when i reved it he said he felt scared cuz of the vibrations (not anything bad with the engine just the sound)

 

with stock internals, yes. the racing teams have gotten the motor to around the 230whp range. your not gonna see much more than that as that is with EXCELLENT standalone engine management

 

I'm interested to hear what brand intake (made for the RX8) has its MAF sensor WAY too close to the air filter and is causing issues because of this.

The AEM will not throw a CEL unless you mess with the MAF (ex: get it dirty or its not properly seated).

LOL... yeah, some people get annoyed with looking at the constant CEL and just cover it with electrical tape, but I got used to it (plus its nice to see if it flashes, which means something is really wrong with the car).
I'm happy to have the AccessPort now so it turns off the bit for that code and it no longer displays.

It won't harm the car, but its hard to tell if another code is generated with the CEL on all the time.
You would need to check with a scanner.

 

I think that was the whole reason the 1st gen K&N intake for this car was tossed, and why nobody uses the Weapon R intake. And weren't the Pettit guys having problems because the MAF sensor was located right ahead of the air filter? Had to switch to MAP? I can't remember.

230? Hmm. Wish they had put it on an engine dyno. That could be somewhere in the ballpark of 280 bhp, but there's no way to know I guess. I wonder if the aftermarket for the RX8 will expand when the new rotary engine comes out? Swap out eccentric shafts or concave rotors with a larger combustion cavity?

 

i know this is probably a little late but yeah i run this exact setup and your cel does not go on...and it is very loud due to the midpipe and it covers the intake sound but i like it and am happy with it

 

lol its alright man i already got the exhaust and i love it. the light did go on but i just had mazda tune it. no problems now.

 

when you guys say load, is it so load you would be scared to go to 9k cuz its rippen so load that the everyone in a mile radius will hear it? you can't hear yourself think?

 

the sounds are pretty sweet revving it to a redline, but everyone has their preference. from 5k to redline i deff feel some power kick in.

 

i got the aem + ap catback + rp supercat.. and it's stupid loud. no difference in gains when i went from K&N to aem.. or none that i could feel.

 

if u tune it you'll get more power

 

Here's what an Agency Power 3" cat-less exhaust sounds like and some nice 2 foot flames I was shooting out...
http://www.youtube.com/watch?v=yTCJZLFc9Po

I would say our cars make 220-225 flywheel in stock form and maybe if its cold and moist out they might hit the 232-238. I dyno'd 172 rwhp on a 96 degree day and with the AP full exhaust cat-less and a regular K&N drop in filter I did get an additional 17.5 rwhp which put me at 232 flywheel on a hot day. I think if we did every known bolt-on upgrade known to man and a Cobb AP with a really good tune we might knock on 280-290 bhp flywheel. That can be pretty impressive in a 3000 lb car. Maybe a 13.5 quarter mile?

 

Exhausts dont change the power to the flywheel. It just reduces the airflow drivetrain loss so that you gain more power. Basically, any exhaust is restrictive, just that the aftermarket ones usually make it less restrictive. As many other's said, 270hp to the flywheel is theoretical most and absolutely possible being only N/A. That is unless you peripheral porting and such.

I pulled a whopping 165whp on a nice cool and sunny day... so be happy with the number you got