550i Project Journal
Thread Starter
Senior Members
Joined: Apr 2009
Posts: 1,122
Likes: 3
From: Seattle
I hope I speak for us all when we were waiting and wanting you to be like 
This is the shiznic and you just gotta have it!! I could be wrong and your just mellow and subdued still taking it all in. Or on the flip side, you haven't stomped on it yet and are still breaking it in.
This is the shiznic and you just gotta have it!! I could be wrong and your just mellow and subdued still taking it all in. Or on the flip side, you haven't stomped on it yet and are still breaking it in.
Members
Joined: Feb 2006
Posts: 64
Likes: 0
From: Tustin, CA
My Ride: 2004 545i - Steptronic - Logic 7 - Sirius Satellite - CD Changer - Cold Weather Pkg.- Fold Down Rear Seats - Comfort Seats Mods: Dinan CAI - RPI dual intake scoops - Euro AHL Bi-Xenons - LED Angels,
Model Year: 2004
HOLY Crap !! The sound of those Magnaflows on that Dyno vid, you are going to scare little old ladies! More Boost!
More Boost!
Thread Starter
Senior Members
Joined: Apr 2009
Posts: 1,122
Likes: 3
From: Seattle
Ordered a couple pulleys this evening. A 3.0" pulley and a 3.1" pulley. Hopefully we can hit the rated boost of 6.5-7PSI without having to go any smaller. This is what a 3.1" pulley looks like. Should be here before Tuesday:
The 3.1" pulley should work with the existing belt (K060888 - 13/16" x 89 1/2" OC). Since we'll probably end up running the 3.0" pulley, ended up nabbing one of these belts at the local auto shop since it's a tad shorter:
It's a K060885, a 13/16" x 89 1/8" OC. 3/8" shorter than the belt used with the 3.2"/3.1" pulley.
So here is a recap:
3.2" pulley - K060888 (13/16" x 89 1/2" OC)
3.1" pulley - K060888 (13/16" x 89 1/2" OC)
3.0" pulley - K060885 (13/16" x 89 1/8" OC)
The belts and pulleys are all 6 rib.
Last edited by west; Sep 9, 2013 at 11:21 AM. Reason: Corrected belt length
Thread Starter
Senior Members
Joined: Apr 2009
Posts: 1,122
Likes: 3
From: Seattle
The car simply sounded angrier after installing the headers...and it performed better too. Highly recommend installing headers on the V8.
You're right though. The magnaflows sound entirely different without the headers. The headers change the sound of the exhaust entirely.
