BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i) - View Single Post - Visual Comparison Between the Stock 128i "Suction Hood" and the BMWPI "Suction Hood"

JimD · 05-30-2019, 06:44 AM

I don't know if it adds hp or not but I agree it looks like it should flow better. A key difference is the lack of the corrugated flexible part near one end. Those sort of flexible connections help with installation but have very disproportionate impact on air resistance. Makes me wonder how much more difficult the performance intake is to install.

05-30-2019, 06:44 AM	#3
JimD Brigadier General 368 Rep 3,547 Posts Drives: 128i convertible Join Date: Apr 2009 Location: Lexington, SC iTrader: (0)	I don't know if it adds hp or not but I agree it looks like it should flow better. A key difference is the lack of the corrugated flexible part near one end. Those sort of flexible connections help with installation but have very disproportionate impact on air resistance. Makes me wonder how much more difficult the performance intake is to install. __________________ 128i Convertible, MT, Alpine White, Black Top, Taupe Leatherette, Walnut, Sport Ordered 5/22/09, Completed 6/4/09, At Port 6/9/09, On the Georgia Highway 6/13/09, Ship Arrived Charleston 6/24/09 at 10pm, PCD 7/21/09
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