My 458 Italia Kline Innovation exhaust

I purchased and received my 458 Italia Kline Innovation exhaust and it will be installed within the next couple of weeks. I went with the Kline stainless steel, Valvetronic system with decat/test pipes, and headers. The quality of materials, welds and finish is excellent, and the amount of packaging used to protect the parts was top notch. I'm having the ECU updated as well. I'll post some video after it's installed.

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My priority was improving exhaust sound as much as possible, and I especially want the F1 sound at higher RPMs.

I also wanted a Valvetronic system so I could control exhaust sound volume levels.

I asked myself if I would ever try to sell the car without the stock exhaust, and the answer was no. My plan is restore the exhaust to stock if I ever sell the car, and running new exhaust with cats hurts exhaust sound quality. I know some people say they smell gas with a decat, and all exhaust systems are different, but my research says I shouldn't smell gas. I'm also updating the ECU.

Performance improvements were secondary, since I'm happy with the performance of the 458, so adding headers was something that I was hesitant in doing because it's expensive, but I didn't want to wonder what performance or sound improvements I was missing, and since I didn't want to have any regrets, I decided to go with headers too.

Inconel is a lot more expensive than stainless steel, and I don't care about more weight reduction, and if there really is a sound improvement of Inonel over stainless steel, I don't believe it's worth the added cost.

 

I agree that the 458 stock exhaust sounds good with the valves open all the time, but a 458 with a good decat exhaust system with the valves open sounds better than amazing! There's no comparison to stock, so I disagree.

 

I agree that it's not easy deciding which exhaust to pick based on Youtube videos. Do your research, then go to local car shows, Ferrari get-togethers, etc, and listen to cars and ask owners which exhaust they have. I did all this and narrowed my choices to IPE and Kline. Kline is a WAY better deal than IPE, and bang for the buck, hard to beat.

 

Why do you think the sound difference you're hearing is the Inconel, and not the exhaust itself? Are you saying that if you swapped your current Kline Inconel exhaust for the same Kline exhaust in stainless steel, that you think you could hear the difference? I really doubt it.

 

I've never heard Inconel and stainless steel side-by-side either, but I assume most, if not all of the sound comes out of the tail pipe. If Inconel exhaust walls are thinner or less dense it could sound different, but with as loud as a decat 458 is (valves opened or closed), I can't image being able to hear that will all the noise that comes out of the tailpipe.

 

My Kline stainless steel, Valvetronic system with decat/test pipes, and headers are installed and it sounds incredible. I need to get the car outside and on the road to take it for a drive, but in the shop with the valves open it's LOUD. It has a low growl at idle, and wicked, high pitch scream at high RPMs. Videos really won't give you any idea how it transforms the sound of the car, but I'll post videos in the next couple of weeks.

 

So far I love the Kline exhaust on my 458 Italia. I have the stainless steel, Valvetronic system with decat/test pipes, and headers. I thought it''d be too loud to drive around town with the valves open all the time, but it's not. I like it so much with the valves open, that's the way I've been driving it most of the time. Never any interior drone at all, and never any gas smell. At idle and lower RPMs it has a deep growl, and at higher RPMs the high-pitched, F1 sound. Never tinny sounding. It's a great exhaust system and I highly recommend it.

 

Yes, there was a decat CEL, so I added the Capristo ODB Wizard which took care of the problem. I don't have any decat check engine lights.

The car sounds so good with the valves open that I drive around with the windows open more often just to listen to the exhaust sound.