Cold air intake will not affect the exhaust in any way. On hard acceleration it might make a throatier sound at the intake. It will probably add about 5 to 10 HP and could very very slightly improve gas mileage.

 

Ubad2, i've merged this thread with the one YOU started 3 weeks ago on the exact same topic.

You don't need to start a new thread every time, cheers.

 

mmm, any power increase should make the exhaust louder, just a matter of physics as every BHP produced has an element of energy that is lost as noise, therefore an increase in engine power must increase noise. if it doesn't, then i would suspect that the increase is not what you are claiming or none existent

 

I personally like a lot of SC whine. It is much more pronounced on my MINI than the F-Type. Never actually heard it until the lower pulley was added.

 

True but the % of power increase with this intake is minimal. The resulting increase in noise from the exhaust would not occur under steady sate but only when that additional power is being produced. Under those conditions there's probably other distractions which would cause additional noise to go unnoticed.

 

Mikey, my statement of 5 to 10 hp gain is likely very accurate. Considering this modest gain on a 400HP engine would be 2 1/2 % more power. Think you could hear that at the exhaust? No way!

 

Agreed.

I hope the OP does before/after dynos runs, having some sound level measurements would be nice too.

 

I don't know of any dyno shops located in Northern NJ. I'm not going to OshKoshville just for Dyno. Of someone knows of a place reasonable close I'll do it.

 

so to spend so much on so little, the question has to be 'why bother?'

 

It's to impress the mechanic with all the shiny CF when he puts it up on the lift.

 

Such filters usually result in accelerated ring wear due to inferior filtration.

 

My understanding is that they are using a traditional filter element rather than an oil soaked "K&N" style, so filtration should not be compromised. The improved flow is supposedly due solely to enhanced laminar flow and reduced turbulence through the ducting.

 

After resetting the maf/throttle body through my dealer I am happy to report that the car felt stronger with better/more crisp response with the eventuri. I actually got eventuri to make me a double filter since I am worried about dusts in China. So far no problem with light puddles of water, don't know how the filtering is doing but car feels good.

I am looking into porting the throttle body and intake manifold next. Unhinged I can't wait til Wes when you dyno your car with headers =D

 

I will let you know when I get some results.

 

Why did the car's MAF and Throttle Body need to be reset. Was it due to the Eventuri setup?
Thanks

 

Here is a short video about Eventuri intakes.


http://youtu.be/xwbHg2X3sRA

 

I had the car for oil change and was talking to my tech about the intake, I want to test air and fuel ratio with the intake on and also take a look at the throttle body to see if porting it would be a good idea. So I didn't need to reset it, it just ended up being better. If I just drove the car with the intake for a while the system might adapt to the intake as well, I am not sure tho.

I was actually surprised at how dirty my throttle body was, it was black with deposits and stuff.

 

How does a dealer go about resetting these devices and what does it do?

 

My tech guy used the dealers laptop and connected it to the car while charging the car battery. They have a software and they go into the interface and reset it and the computer does its thing.

For the throttle body I think it resets the position of the butterfly valve. I dont really know what resetting the maf does. I am not an expert lol, was trying to get an accurate read of a/f ratio.

 

I think you're fooling yourself both about the reset and the new intake set up. People hate to think that they've wasted their money whether it be an overpriced restaurant, a fancy bottle of wine or vehicle upgrades.