Type R airbox on a SI

[Jake Speed]

There are several different CF hood options now.

I love CF, (had mirror CF caps and wing on my grey BMW 135i) but not sure I want the CF hood look, especially because I can't get enough of the blue as is! But I'm tempted to consider the idea after lifting the hood; it feels exceptionally heavy to me. Does anyone else think so?

I was always unhappy with how heavy the trunk was on my '13 sedan, and am so happy the coupe's is so light, but it's like they transferred the weight to the hood!

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[Alnando215]

Wouldn't work. The stock air box on the Si, and other 1.5's are pretty efficient. Already been proven.

Isn’t the type r air box extremely efficient? I heard the stock ones in our cars are good but the type R is phenomenal. Wouldn’t it help the car even more ?

 

[M1K3_V]

do an IC and a bigger radiator and you'll see the heatsoak issues disappear. Ive done both of these mods and my car runs alot more efficiently because of it. I also did the PRL coolant hoses just because.

 

[LilToTo17]

You want less heatsoak and lower iats then PRL CAI is your best first start to it

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