Persian_535i

I noticed these posted on a site that sells RPI items and basically wanted to know number one what do they do, are they only made for the M5, and does anyone actually have them installed and has seen results from it? Thanks for anyone that has info!
Item description explains "This allows for quicker pressurization of the intake system", whatever the hell that means
http://shoprpi.com/product_info.php?...products_id=34

5FOUR5

http://raceprecision.com/forums/viewtopic.php?f=7&t=15

RPi's ram air block off plates are used in conjunction with the Ram Air kit. The plates partially block off the bottom secondary hole of the intake box. This allows for quicker pressurization of the intake system. Dyno tests have shown a 4 - 6 whp gain in the midrange.

$22 for a properly designed + manufactured component, with dyno proven results sounds pretty good to me, I think you should get it, if you havent already. Give RPI a call: 562-630-5966

balbs

I inquired Trinity Autosport about them since they sell them. Nerwyll said that they're for the M5.

Balbs

info@trinityautosport

that is correct, the block-off plates are only made for the M5 and M6