Mod ♥ 450/451/453 + Motos
Join Date: Sep 2008
Location: IL-WI Border
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According to your post history you live in the United States. No 451 (2008-2015) sold in this country has a turbo. Where are you getting those specs from?
Assuming your car isn't some strange import and doesn't have an aftermarket turbo, both of those intakes will fit.
The cheaper intake is just a hose that replaces your factory resonator.
The more expensive intake replaces both your airbox and the resonator.
They both do the same thing in the end, but they do it differently and they aren't used together.
Someone dyno tested all the aftermarket intakes and his findings were that the cheap intake tubes with a high flow filter in the stock airbox provided more wheel horsepower than the much more expensive and flashy looking cold air intakes that replaced all of the stock intake system.
So my recommendation would be to get the cheaper one.