What did you buy your Z4 this week?

[maupineda]

You know, I thought this a lot when choosing the ratio, and settle on 4.1. Now I think 3.91 might be a better compromise… and, you can still go to a 12% increase by changing tire size down to 40/35 from 45/40.

A 3.91 is 8% increase, tire size is 4%, and 4.1 is 13%.

[grannyknot]

Originally Posted by maupineda

You know, I thought this a lot when choosing the ratio, and settle on 4.1. Now I think 3.91 might be a better compromise… and, you can still go to a 12% increase by changing tire size down to 40/35 from 45/40.

A 3.91 is 8% increase, tire size is 4%, and 4.1 is 13%.

I rebuilt my diff a couple of yrs ago and swapped out the stock gearing for 3:91 gears, I do like the quicker take offs but I'm wishing now that I had gone with the 4:10 instead.

[3002 tii]

Originally Posted by maupineda

You know, I thought this a lot when choosing the ratio, and settle on 4.1. Now I think 3.91 might be a better compromise… and, you can still go to a 12% increase by changing tire size down to 40/35 from 45/40.

A 3.91 is 8% increase, tire size is 4%, and 4.1 is 13%.

4.10s is more fun and better ‘bang for buck’. The only time 3.91 is better is when you’re on the highway. Cruising at 70-75mph no longer feels like cruising. But just comes down to what you want, but the M won’t ever feel tame with 4.10s.

[dre99gsx]

Improved splitter mounting

[3002 tii]

After getting boatload of maintenance done (rod bearings, vanos, cooling), decided to get the car dyno’d. Only drivetrain mods are Euro headers, 100 cell high flow cats and off the shelf Epic tune. Put down a respectable 298whp, which means I should be able to crack 300 once I install the Eventuri intake in few weeks

[homebrw]

Congrats! 300 at the wheels on an 18 year old is legit!

[robblr]

Took a few months to arrive, but good art is worth waiting for.

Going with an Alpha-N tune from pokeybritches .

[SepangZ4MC]

I am attempting to program this homelink mirror

on my coupe but couldn't find any programming instructions on it. After researching for a bit, this doesn't seem like the stock oval mirror. Anyone know what BMW this mirror is from?

[ried]

Isn't there a part number on it?

[cbpip]

Try this

Clearing Existing Homelink Programming
Before you can program new settings, you must clear the existing programming in your Homelink system. Here’s how:

Step 1: Start by sitting in your vehicle near the garage door opener. Car on, not started. Doors closed.
Step 2: Locate the Homelink buttons on your car’s visor or rearview mirror.
Step 3: Press and hold the first and third Homelink buttons simultaneously until the indicator light begins to flash slowly.
Step 4: Continue holding the buttons until the light changes from a slow flash to a rapid flash, indicating that the programming has been cleared.
Programming Homelink for a Single Garage Door Opener
If you have a single garage door opener, follow these steps to program Homelink:

Step 1: Again, sit in your vehicle near the garage door opener.
Step 2: Press and hold the desired Homelink button you wish to program and the button on your compatible remote simultaneously.
Step 3: Wait for the indicator light to change from a slow flash to a rapid flash, indicating successful programming.
Step 4: Test the Homelink button by pressing it to ensure the garage door opens or closes as expected.