davyjordi

so, i want to upgrade the lame front brakes on my 2014 IS 250 to the larger-sized brakes available on the 350. does anyone know the part numbers so that i can purchase them on mylparts.com or lexuspartsnow.com? any guidance in the right direction is appreciated. remember, i'm only looking to upgrade the front. if the front are not a million dollars then i can also change the rear!

thanks, all.

p.s. if anyone was following my spring vs. coilover thread yesterday, the springs won and are staying on my car. the coilovers are being returned. lexus drama up in here.

davyjordi

or would it be prohibitively expensive?

davyjordi

would my car need all of these components or only some as some are inevitably shared by the 250.

E46CT

Just go on eBay. you can probably find mountains of them on there. If im not mistaken, the 2G IS350 should have the same parts but cross-reference part#s to be sure.

Im guessing the rears are going to be a chore (assuming the rears are different).. not sure. the fronts should be bolt on.

Sasnuke

Here is the breakdown of the part numbers. The list below shows the factory IS250 part numbers on the left and the IS350 part numbers on the right.
NOTE: THIS IS FOR AWD...the ROTORS are the only part that are different on the front of a RWD model...everything else is the same.
If you have a RWD IS250, then order everything on the right except the rotors.
Also, you will need 2 each of the Anti-rattle spring, Pad Pin, and Pin clip.
Whoever does the work for you will need to remove the front wheel bearing assemblies in order to replace the backing plate with the proper ones for the 350.

davyjordi

^ that looks super difficult.

Sasnuke

Try that now...
Pasting spreadsheets is not possible...apparently

davyjordi

that looks just a tiny bit less difficult but still difficult enough for me not to trust myself installing the 350 brakes.

Sasnuke

Just get the parts and take it to a shop to do. You can look on ebay for the calipers like E46CT suggested.
Rebuilt ones are way cheaper than brand new. The 2IS 350 front brake calipers are the same as the 3IS 350 ones.
Also the GS350 front calipers from 2007 to 2012 (that body style) are also the same.

davyjordi

thanks, that's probably what i'm going to end up doing. toooooo hard for meeee.

davyjordi

does this look right to anyone? are the 'discs' the rotors? am i missing something?

Sasnuke

Disc = rotor

davyjordi

ah, i just was writing you a pm. does the rest of this list look right to you?

Sasnuke

The rest looks fine. I didn't see pads...but I'm looking at the pics on my phone...so I could be missing a piece of the pic...unless you're going with aftermarket pads for the 350 brakes.

davyjordi

yeah, i'm going to (try to) get my dad to buy me pads haha