458 exhaust note/volume

you should just buy a F8.

 

What cell rating are your cat pipes? Either way you would have got a noticeable volume increase from that set up. Might be a silly question, but are you testing it with the windows rolled down? IPE increases the pitch significantly, but the higher pitch means it has a harder time penetrating a sealed cabin.

Headers will increase volume slightly, but not drastically. It will be marginal with the windows rolled up.

If you really want to go loud you need to delete the cats entirely.

 

Go with test pipes (cat deletes) instead. The car will sound much nicer and louder also.

 

Now that’s some funny s**t right there.

 

LOL wow... this is no way to start a weekend IloveGT!

The F8 only sounds louder because it has a sound tube that pipes the exhaust note into the cabin. This increases the noise by something like 7 or 8 decibels as I remember. Maybe the OP should drill a hole into the fire wall and run a rubber garden hose back near the exhaust system; that's effectively what Ferrari has done, which is super duper gay if you ask me.

Ray

 

Installed full IPE exhaust with 200 cell cats on my F430. Started out pretty quiet, but got progressively louder over the following few months to the point that valves open is a bit obnoxious. Sounds much better overall than stock though.

 

Never heard that with IPE before


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Yes, I'm at a loss to explain it. The difference wasn't dramatic, but noticeable to me and the indie that installed the exhaust. The "as installed" sound level was perfectly to my liking - valves closed similar sound level to stock; open - a nice F1 like howl. A quick online search seems to indicate there is matting inside the cats that is "unexpanded" until after a few heat cycles, however, both links I looked at indicated improper break-in will result in the matting not filling the cavity properly and in turn lead to rattling noises, which I did not experience. The U.S. Rep for IPE tried to talk me into cat by-pass pipes instead of the 200 cell cats which I'm confident would have been unbearably loud.

 

just wait for @SoCal to az . lol

 

No comment but I’ve heard that nothing sounds as epic as the 458.

 

Makes sense now Keith, you need decat!!


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Take the car out for a proper track day. Any new exhaust needs time to open up. Before changing anything, give it a good flogging for about 1500 miles. Then see where it is at. If you have 200 cell pipes, try 100 cell. Close to decat, but without the stench.

The problem with IPE exhausts is that the artificially high pitched sound is very thin and not very powerful. Personally I think it is dreadful. Headers, sports cats and a Novi rear will still be high pitched, but it will be a full bodied sound that can be felt. It is much more like a raw high pitched roar, whereas the Innotech is just a thin high pitched noise.

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Is this your friend Keith from our group chat Eddie hyung? If him I met him before yeah?

Yes go with decats(straight pipes).
When you change just the exhaust ..you really only change the tone of the sound. It isnt until you change the cat pipes that the pitch and volume changes. So in your case cat pipes from IPE depending on the cell doesnt change the volume much. If you want it loud like Eddies Speciale you need decats..its the only way..also add headers for a little more sound and power. (P.S I have IPE headers if you need since I sold my 458)
That sucks that you already bought the "Cat pipes" from IPE. Also note that IPE exhaust(I think) only fit IPE decat pipes.
I remember when I installed my IPE the stock cats didn't fit the IPE exhaust...they have different diameter pipes. So this means fabspeed or other straight pipe brands which have stock diameter will not fit. buuuuuuut I could be wrong....so double check lol.

 

novitec or bust

 

For 458, IPE is great though


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lol not according to this thread

 

Well my friend fred courtot aka petfred has a full ipe
It’s the best thing. Figment is known to be so so at times but I’d think OP needs to return his or something. IPE is awesome



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Yes