GTX780SLI

iTrader: (3)

just installed F sport BBk.everything seems ok.when i drive,i hit accerlate, it was making some noise,like egg,eugg ect for like few 30-45 secs,after that then is fine,
when i brake its fine.no noise.
let me know wat cause the issues.
I have brake fliud changed,and Air pressure released at the shop.
my car is a 08 is350

got556

Maybe a pad dragging on the rotor. On a different note, very jealous you have both front and rear.

Can you try to get a video of the noise. Hard to diagnose through words.

GTX780SLI

iTrader: (3)

thanks.I will bring it back to the shop have them take a closer look.

Gville350

iTrader: (10)

Did you install the kit or did the shop? Perhaps slight rubbing from a bent dust shield?

GTX780SLI

iTrader: (3)

in auto shop,u are right,thats wat my friends assumed as well.is the dust shield.

jfn

FYI...

Please verify/double check that your front F-Sport calipers you bought are actually for the IS350. Note, they will look exactly the same from the outside and will install exactly the same. The difference is in piston diameter size in the caliper itself.

I was about to buy the front and rear kits from the same shop as you but found out the front kit are actually for the IS250 which smaller piston diameters and the rear kit is for the IS350.

IS250 F-Sport BBK Front
Piston diameters: 30mm/30mm/34mm

IS350 F-Sport BBK Front
Piston diameters: 34mm/34mm/36mm

Gville350

iTrader: (10)

^Interesting, I just figured the kits were the same for both models.

Meguerra

iTrader: (8)

I have the IS350 F Sport BBK on my IS250. No problems at all they work great. I called Stop Tech before installing they told me only problem the ABS will be a little off. You might want to check and see if the rear rotor dust covers that need to be cut for install of the rotors is not rubbing on the backside of the rotors.

GTX780SLI

iTrader: (3)

yea it seems like the back left rotors or the front left rotors.
i will bring back to shop have them take a look.
hope the noise go off ASAP...

gudbramble

I will bring it back to the shop have them take a closer look.

Meguerra

iTrader: (8)

On the front rotors they should have taken the dust covers off and installed 2mm spacers shown in this photo,

jfn

Gville350 went the other way. IS250 kit on IS350 along with the correct IS350 rear kit. I am sure the piston diameters are larger on the IS350 rather than IS250. Would be interesting to measure the piston diameters on stock IS350 brakes.

Good luck on eliminating the noise you are hearing.

GTX780SLI

iTrader: (3)

Finally the noise was gone.just installed takeda intake.
now waiting for the invidia midpipe then all good to go.i will do a video ASAP.
thanks

Gville350

iTrader: (10)

^So what fixed it? A loud intake and exhaust so you no longer hear it? LOL!

GTX780SLI

iTrader: (3)

i bring back to shop,they pulled back the dust shield.yea,,
now the noise was gone.still waiting for midpipe.take for ever to come......