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Whats a good resonator to add to my cayenne to quiet down the exhaust


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Hello Renntech Peeps!

I recently did a cat back delete with Fabspeed pipes. Result.... I hated the sound. I have a Porsche Cayenne S 2005 model...

So I called Fabspeed and they told me I needed the complete system with mufflers to get that deep sound I'm looking for. They were nice and cut me a deal on system. Well, I added the system on, gorgeous system, I mean it looks sexy on the Porsche. But the sound is even louder now. It sounds more like a Straight Pipe sound that you hear on a Harley. I'm not sure why, but it is what it is. So i'm looking for any help or guidance on what type of resonator I can buy to quiet down the sound. My muffler shop said its not an issue they can add any universal resonator to the pipes. All help is greatly appreciated. Thanks in advance!

And for convo purposes, the fabspeed quality is bar none one of the best I've seen. The performance is even better then OEM. I haven't lost any power what so ever. Some people love the sound, but I'm looking for more of a deep purrrrr upon take off.

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There are really only two major types when it comes to automotive sound reduction.....Back pressure, and absorption.

Back pressure (I would assume) is not preferrable because it also limits exhaust flow and power. And typically "baffles" and what not are not nearly as effective as absorption without proper frequency and pulse tuning.

That leaves absorption.....and the basic deal here is surface area....the longer the resonator the quieter it will be.

I run a Aero stealth muffler on my track car, completely straight through design, but puts sound levels back to near stock level. The downfall is they are long. Aero also makes resonator type bullets, which is i think what you were looking for. Maybe take a look at those and find a length that can be added into the existing deletes?

My only question is why spend the money on cat deletes and exhaust system if you didn't want added exhaust notes?

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clarksongli, I agree with you. I was just looking for a deeper throated sound. I didn't expect it to sound like a Harley ..... I've done cat deletes on my Bmw's and full exhaust systems before! They all sounded bad ***! This is the first time I'm not satisfied with an exhaust sound. Maybe the cayenne is designed differently. Well I added a couple of bassani resonators right where my deletes are and they made everything just the way I wanted it to sound like. There high flow 300 cell resonators, now the exhaust note is deep and aggressive,without the Harley sound.

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