Originally posted by Slideways
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Which csl airbox to buy?
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Originally posted by NZ_M3 View Post
Owning all iterations of the airbox from Wethje and Karbonius ect and having heard all the airbox on the market I can tell you this is categorically not true. They all sound different.
Gordon Murray in his Topgear video on his T50 hypercar talked about tuning the thickness of the carbon airbox for a specific sound resonance in the Mclaren F1 road car. He basically said with intake waves the sound actually bounces back up the airbox so depending on the design and carbon thickness you get a different sound.
The Wethje airbox that Evolve copied from is actually the quietest airbox and for me the most underwhelming to drive both in performance and noise. It was notably flat and lacked torque.
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Originally posted by Slideways View Post
No, they all sound the same. A carbon airbox with a 200mm opening makes the same sound as a carbon airbox with a 200mm opening, lol. With the hood closed, the intake noise is coming from the same area of the engine bay.
Gordon Murray in his Topgear video on his T50 hypercar talked about tuning the thickness of the carbon airbox for a specific sound resonance in the Mclaren F1 road car. He basically said with intake waves the sound actually bounces back up the airbox so depending on the design and carbon thickness you get a different sound.
The Wethje airbox that Evolve copied from is actually the quietest airbox and for me the most underwhelming to drive both in performance and noise. It was notably flat and lacked torque.
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Originally posted by freshprince2421 View Post
Looks awesome. Dyno results? P.S. Is this race version quieter or different in tone than original without flap? š
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Originally posted by freshprince2421 View Post
Looks awesome. Dyno results? P.S. Is this race version quieter or different in tone than original without flap? š
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Originally posted by bassel_sy View Post
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Originally posted by Slideways View Post
It's not, Karbonius (and Streamline) like to claim this even though they have not made any significant improvements to the original design. In fact, there are one or two things that they should correct to get it exactly like OE. The two things I noticed with a Karbonius Airbox produced in 2015 were that the oil return line hose to the oil pan did not create a seal with the o-ring due to the fact that the port was too short for the fitting and the ICV port was not chamfered like it is on the OE box to reduce the whistling noise at low RPM. And all the details about the trumpet design and internals being smoother have not been proven to make any measurable difference. It honestly sounds like a bunch of marketing and a way to claim they differentiated their product from the original. That being said, the Karbonius is still high quality and great value for what it is. The original airboxes made by Die Wejthe have been around for 13 years and all the ones I have seen have held up very well.
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I got an Evolve Box... mainly bcoz I was lazy and at the time I just wanted it to come with the OE bits I needed and a Tune so i could get going straight away... Arguably there is better value in a Karb box getting the OE bits you need yourself and getting a better tune from Paul Claude or Hassan,,, I will soon need to get a custom Paul Claude or HTE tune as I am not happy with the canned tune I got but it did allow me to get going with the extensive mods I had straight away instead of trying to run a stock CSL tune so I don't regret it in any way. I am still incredibly happy with my Evolve box/purchase and its kinda cool to know it was based on an original Race Box... if you want the more original street / flap setup then obvs Karb is the way to go but the Evolve box is well and truly proven so if you want the race style and look its still a great buy IMHO
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Originally posted by csynic View Posthow does having an intake impact CA smog? how do you pass it yearly?
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how does having an intake impact CA smog? how do you pass it yearly?
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Originally posted by r4dr View Post
Hard pass on the crystals. Is the BW box any good though? I never see it mentioned.
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Originally posted by Slideways View Post
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Originally posted by r4dr View Posthttps://www.bimmerworld.com/Intake-F...120MM-Kit.html
What's the story on the BimmerWorld one? Is it just a rebrand of something else on the market?
How about the V10 airbox with Swarofski crystals for the Weismann MF5 lol
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^Solid response thanks for that.
Sent from my iPhone using Tapatalk
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