[ember.m4]

Doesn't seem like any major manufacturers have released stainless steel brake lines for the G8X platform yet. The only one I've seen so far is the ECS Tuning one... Anyone know of any other options? Or does someone have experience with ECS Tuning lines? Granted, brake lines aren't particularly difficult things to design and manufacture, but I have heard some horror stories about people running into issues with shoddy aftermarket lines.

[ashtaron14]

I contacted Goodridge, they just said it is not available. I tried ordering the ECS, then post order it changed from 2 days availability to April 30th; when it changed May 31st I cancelled my order.

Essex listed the Spielger lines but also without dates for when they will be available. I've emailed them. Lets see how it goes.

[ember.m4]

Originally Posted by ashtaron14

I contacted Goodridge, they just said it is not available. I tried ordering the ECS, then post order it changed from 2 days availability to April 30th; when it changed May 31st I cancelled my order.

Essex listed the Spielger lines but also without dates for when they will be available. I've emailed them. Lets see how it goes.

Wow, it's incredible how difficult it is to get a set of SS brake lines. The G8X cars have been out for a while now...

[r33_RGSport]

I can have it made.
Been in the industry long enough where I know some people who can make it.
Made in USA products.

[ashtaron14]

Ended up purchasing and installing the ECS ones.

[Poffman]

Originally Posted by ashtaron14

Ended up purchasing and installing the ECS ones.

How are they? This is on my list.

[BMWRacer523]

SS lines were a mod I did on pretty much every BMW I owned for the last 20 years but with brake by wire i really don't see the added benefit to them from a performance pov. Now they might add some more bling to the caliper but the line isn't usually visible anyway. So idk, i'm probably going to pass on this mod this time around.

[FLOSS M]

I just changed the fluid to SRF with the stock lines and ceramic brakes. I think that should be fine.

[ashtaron14]

On the M340i, I changed the pads/fluid/SS lines at the same time and it resulted in a very firm pedal full of feel and was easy to modulate.

On the G80 M3, I did the pads first because SS lines was not available. I installed the SS lines 2 weeks ago, and I'm happy to report that it does make for a firmer brake pedal feel and is easier to modulate even with aftermarket pads.

Yes, it does make a difference in pedal feel even though it's all brake by wire.

[Poffman]

Originally Posted by ashtaron14

On the M340i, I changed the pads/fluid/SS lines at the same time and it resulted in a very firm pedal full of feel and was easy to modulate.

On the G80 M3, I did the pads first because SS lines was not available. I installed the SS lines 2 weeks ago, and I'm happy to report that it does make for a firmer brake pedal feel and is easier to modulate even with aftermarket pads.

Yes, it does make a difference in pedal feel even though it's all brake by wire.

TY just the info I was looking for. What lines did you buy?

[ashtaron14]

Originally Posted by Poffman

TY just the info I was looking for. What lines did you buy?

ESS Tuning Direct Fit

[jritt@essex]

Spiegler USA lines are in stock and ready to ship:

Front= https://www.essexparts.com/spiegler-...4-g80-g82-5756

Rear= https://www.essexparts.com/spiegler-...0-g82-57565759

[Poffman]

Originally Posted by jritt@essex

Spiegler USA lines are in stock and ready to ship:

https://www.essexparts.com/my-vehicl...pound%20Brakes)

Bad link.

[BMWRacer523]

Originally Posted by ashtaron14

Yes, it does make a difference in pedal feel even though it's all brake by wire.

If you say so but i'm puzzled as to how an electronically actuated brake pressure can be felt in the pedal. The system is measuring brake pedal force and travel and actuating the hydraulics.

[Poffman]

Originally Posted by BMWRacer523

If you say so but i'm puzzled as to how an electronically actuated brake pressure can be felt in the pedal. The system is measuring brake pedal force and travel and actuating the hydraulics.

Because the soft lines flex and that loses some of the efficiency of the line attached to your caliper. You will get more consistent pressure and predictable performance by taking the flex out of the line.

[ashtaron14]

Originally Posted by BMWRacer523

If you say so but i'm puzzled as to how an electronically actuated brake pressure can be felt in the pedal. The system is measuring brake pedal force and travel and actuating the hydraulics.

I don't know how it works. I had my own doubts before making the purchase for the M340i. But they exhibited a worthwhile difference so I sought a set for the M3 as well; it does make a difference to me.

But yes they are awfully difficult to bleed and you can't use the old school pumping method anymore on these new cars or else the pedal will always feel lacking.

[BMWRacer523]

Originally Posted by Poffman

Because the soft lines flex and that loses some of the efficiency of the line attached to your caliper. You will get more consistent pressure and predictable performance by taking the flex out of the line.

Ok I can buy that but how would you feel that in the pedal? It's not direct attached anymore unless there's a failure in the electronics in which case there's a bypass valve. Normally you are not feeling the hydraulic pressure in the pedal.

[rak299]

This seems like a questionable "upgrade". Flexible brake hoses are not like vacuum hoses. There is a mesh embedded in the hose that eliminates any swelling or change in the hose when under pressure.

[Poffman]

Lol by that logic swaybars do nothing for our electric steering but ok

[M4Tejas]

Originally Posted by sleepingplant

Doesn't seem like any major manufacturers have released stainless steel brake lines for the G8X platform yet. The only one I've seen so far is the ECS Tuning one... Anyone know of any other options? Or does someone have experience with ECS Tuning lines? Granted, brake lines aren't particularly difficult things to design and manufacture, but I have heard some horror stories about people running into issues with shoddy aftermarket lines.

ECS is well respected. I have never heard of anyone running into issues(s) with stainless lines, teflon lined etc. Vorshlag might help you. Call them.

[M4Tejas]

Originally Posted by rak299

This seems like a questionable "upgrade". Flexible brake hoses are not like vacuum hoses. There is a mesh embedded in the hose that eliminates any swelling or change in the hose when under pressure.

Questionable? Been running stainless brake lines on race cars for over 20 years. Modulation is typically increased due to decrease in expansion. On the Mustangs we even run brake master cylinder braces. They actually move a bit under hard braking. MOTUL also helps with frequent flushing. The Porsche needs no help.

[beachBmmr]

Originally Posted by rak299

This seems like a questionable "upgrade". Flexible brake hoses are not like vacuum hoses. There is a mesh embedded in the hose that eliminates any swelling or change in the hose when under pressure.

Debris on track can cut rubber brake lines.