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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > stopTech stainless steel brake lines



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      06-04-2015, 09:30 AM   #1
rookieoftheyr90
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stopTech stainless steel brake lines

Anyone have these and think they are worth the extra $$? Need to get new pads/rotors (http://www.autoanything.com/brakes/s...reet-brake-kit) and was going to throw the lines in my cart as well.

not a father, but i'll use the fathers' day discount code!

lines: http://www.autoanything.com/brakes/75A4620A0A0.aspx
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      06-04-2015, 11:11 AM   #2
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I do.

I upgraded to them when I got new rotors and pads alone with a flush.

Is it /needed/?

No.

But then again, are my cross drilled rotors needed? Nah.

My theory was, might as well do this since I am already here. It's preventative, people claim it helps feedback on the pedal, since I did an entire upgrade, I can not claim this.

Long story short, just do it, pops.
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      06-04-2015, 11:53 AM   #3
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sounds good! Thanks for the response....now if only the rest of the gear would ship before the 18th

I hate waiting!?!
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      06-04-2015, 01:18 PM   #4
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Quote:
Originally Posted by rookieoftheyr90 View Post
sounds good! Thanks for the response....now if only the rest of the gear would ship before the 18th

I hate waiting!?!
You're welcome.

Join the club, brother.

Just do what I do. Get piss face drunk when you make large purchases online so the next morning you have little memory of it. You won't remember to wait, let alone, what you're waiting on.

Until your door bell rings or the credit card statement comes in. Whichever comes first.
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      06-04-2015, 04:08 PM   #5
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brand name ss are not worth it as they out source manufacturing anyhow.
you will pay around $150 for 4 vs $110 for 6 lines no brand
http://www.ebay.com/itm/BMW-E90-BRAK...b5cd78&vxp=mtr
I have them on my car for 2 years, track use, salty streets, no issues.
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      06-04-2015, 04:36 PM   #6
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Quote:
Originally Posted by mmmnot View Post
You're welcome.

Join the club, brother.

Just do what I do. Get piss face drunk when you make large purchases online so the next morning you have little memory of it. You won't remember to wait, let alone, what you're waiting on.

Until your door bell rings or the credit card statement comes in. Whichever comes first.
hahaha! I have this tendency with some of my other hobbies
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      06-08-2015, 09:14 PM   #7
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Quote:
Originally Posted by feuer View Post
brand name ss are not worth it as they out source manufacturing anyhow.
you will pay around $150 for 4 vs $110 for 6 lines no brand
http://www.ebay.com/itm/BMW-E90-BRAK...b5cd78&vxp=mtr
I have them on my car for 2 years, track use, salty streets, no issues.
I got 6 Stoptech brakelines for $94 shipped (TH Motorsports).
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      06-09-2015, 08:56 AM   #8
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Quote:
Originally Posted by snaimpally View Post
I got 6 Stoptech brakelines for $94 shipped (TH Motorsports).
They are local to me and $99 buys you 4 lines, as far as I remember the 2 lines that go on the subframe by the fuel tank aren't included.
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      06-09-2015, 09:39 AM   #9
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If your stock lines are still good, I really don't see the point of replacing them.

I did mine, all 6 of the lines. Couldn't notice any difference at all, on street and track. Definitely won't do it again, considering all the trouble of fitting the rear mid lines that run between the rear subframe and bleeding the air out of the system after install...

Pads and caliper guide pin bushings are going to make a lot more difference on the other hand.
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      06-10-2015, 09:11 AM   #10
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thanks for the input everyone.....but parts have been received and going in this afternoon hopefully its money not wasted...but that's rarely the case!
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      06-10-2015, 09:51 AM   #11
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Before and after pictures because we're media whores.
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      06-10-2015, 09:56 AM   #12
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Actually any brake line upgrade is an improvement over pedal feel. If you are replacing rotors and pads, I'd defintely recommend changing the brake lines.

The ER and Stop tech brake lines we sell are very popular. It firms up the pedal feel by making a more linear action in the brakes. As a result, you need less pressure on the pedal to brake and the action is linear.

It's one of those modifications I do on all my vehicles as I hate spongy brakes.
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      06-10-2015, 09:56 AM   #13
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Quote:
Originally Posted by Cloud9blue View Post
Couldn't notice any difference at all, on street and track.
Makes a difference when you start upgrading calipers. The brake pressure fluctuation will be more pronounced. Additionally, they sometimes melt, just like the rubber seals on the calipers. I have seen braided stainless steel lines with plastic liner melt too.

Quote:
Originally Posted by rookieoftheyr90 View Post
hopefully its money not wasted...but that's rarely the case!
...and we drive BMW
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      06-10-2015, 12:55 PM   #14
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here is a pic from over the winter....after some f****r side swiped me. Body work has since been repaired, but old rotor pic for reference.

will post new shots after the install
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      06-10-2015, 02:39 PM   #15
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Make sure you get good quality rotors coated with anti-rust.
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      06-10-2015, 03:01 PM   #16
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so apparently stopTech has the wrong front brake line model number listed for my car.....grrr model number is : 940.34013

mechanic called me and said they were about 4" too long and he wasnt comfortable putting them on.

Anyone know someone with a 2010 328 xdrive with front stainless steel brake lines by stopTech? Right now the car has the OEM lines in the front, and new stainless in the back. Would really like to have the same front and back.

Mechanic said the front lines are fine and is a reputable shop...but i just want to be fancy i guess
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      06-10-2015, 04:41 PM   #17
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Quote:
Originally Posted by rookieoftheyr90 View Post
so apparently stopTech has the wrong front brake line model number listed for my car.....grrr model number is : 940.34013

mechanic called me and said they were about 4" too long and he wasnt comfortable putting them on.

Anyone know someone with a 2010 328 xdrive with front stainless steel brake lines by stopTech? Right now the car has the OEM lines in the front, and new stainless in the back. Would really like to have the same front and back.

Mechanic said the front lines are fine and is a reputable shop...but i just want to be fancy i guess
I agree with the mechanic, fluid need to travel lengths to make pressure and longer would slightly reduce the pressure I guess.
Hopefully your will find the right lines soon!
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      06-10-2015, 09:00 PM   #18
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Quote:
Originally Posted by feuer View Post
fluid need to travel lengths to make pressure and longer would slightly reduce the pressure I guess.
No.

In theory there may be a little more effort required due to the flex of the extra 4" of flexible brake line, but in practice you'd never feel it.

More likely the mechanic was concerned with the lines rubbing on something.
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      06-10-2015, 09:51 PM   #19
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Quote:
Originally Posted by Suprgnat View Post
No.

In theory there may be a little more effort required due to the flex of the extra 4" of flexible brake line, but in practice you'd never feel it.

More likely the mechanic was concerned with the lines rubbing on something.
Whether you feel it or not it would be there and rubbing would not be a concern for a experience mechanic as they will solve that in a minute. However, on the other hand, longer brake travel and slower brake reaction would not be as easily solvable issue. Brake lines (not limited only to the flex lines) are carefully designed by engineers from the length to the bends in the lines on which upon the flow depends with primarily two things in mind: safety and performance.
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      06-12-2015, 09:30 AM   #20
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Quote:
Originally Posted by feuer View Post
Whether you feel it or not it would be there and rubbing would not be a concern for a experience mechanic as they will solve that in a minute. However, on the other hand, longer brake travel and slower brake reaction would not be as easily solvable issue. Brake lines (not limited only to the flex lines) are carefully designed by engineers from the length to the bends in the lines on which upon the flow depends with primarily two things in mind: safety and performance.
mechanic was concerned with both rubbing and the reaction due to the extra length.

Good news: spoke w/ StopTech and they said the part listed for the 335xi model is about 3 inches shorter which should work. Hopefully I can exchange these parts soon.

In case anyone wants to do this, you should order part # 950.34023 and NOT 950.34013 as the website suggests
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      06-12-2015, 09:32 AM   #21
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excuse the dirt...but overall i think the new rotors look mean as. Still need to test function though skrrrtt!
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      06-12-2015, 10:13 AM   #22
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They look as OEM M rotors.
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