[JesseM]

1. how hard to install vs. something like from ECIS?

2. whats the cost?

3. what the HP increase?

 

[4791]

i can tell you 2 out of three

i got a 03 m3. i got mine in a group buy for 1,150 i think.
suppose to give you well for my car 12 to 15 hp. and i think puting it in a m3 is a little easyer. than in a 3 series i think you have to cut out a piece if i am not mistaken.
bobm3

 

[Cybertek]

It took me about an hour.

Not very hard, just print out the Instructions from Renn-Sport.

I got mine in a group buy $520 I think shipped

 

[UltimateOne]

The install is a cake if you've done any intake install before.
www.renn-sport.net and watch for the group buys.
1,000,000hp increase.