ilv1004s

iTrader: (8)

does F sport BBK from the 2IS fit the GS?

neegroy

iTrader: (19)

SURE, you can get the aventadors brakes to fit too just need to make a bracket.

ilv1004s

iTrader: (8)

yeah real helpfull there
ill put it more directly for the people who want to be smartass about it
Will the 2IS F sport brakes bolt on to the 4GS

chind320

iTrader: (1)

Hey, yes i've done the bbk from the is250 option. The fronts bolt right up to the knuckle no problem. Rears that's where i had the most trouble with. Since on our cars the rear calipers bolt towards the front of the car, on the IS's they bolt towards the rear. That's where the difference lies. So that being said, if you do decide to get the rear calipers, you can call up stoptech and ask for "their version" of the bbk and order the brackets that bolts up to our cars. The brackets bolt right up to the rear IS calipers perfectly, but the trouble lies clearing the backing plate of the rear knuckle.

You need to find a machine shop to plug up both caliper bolts and move them exactly 8mm inwards. then you need to mill down the excess fat to clear the knuckle and then bolt it up and bleed normally. All the troubles and problems are so worth it once you finally finished and get it on the road because the braking is good stock....but the braking on these are a world of difference.

ilv1004s

iTrader: (8)

awsome
thanks for the answer dude
ill try it on mine soon
ill hit u up if i got any problems
thanks alot

sam430

iTrader: (10)

What are the differences between the 4gsfsport front vs the fsport BBK besides price? any weight advantage? It looks nice btw.

2.4k for the front kit at sewell. What is surprising is the ISF oem calipers are fairly cheap.

Afrosheen

Maybe it's just me but those rotors look smaller than the GS F Sport rotors. I thought the F Sport got 19's for clearance with the big brakes?

ItzFilyO

RWD only I think.

Afrosheen

Aha, I keep forgetting about the AWD models. Texas.

neegroy

iTrader: (19)

wonder how the isf brembos will fit with our cars lol