BBK Kits for upgrade
I love the scientific comparison done on a public road, with traffic. LOL!!
02-24-09, 10:29 AM
#32
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Really? I saw that Sewell had testing about ISF Brembo BBK Kits with their IS350 and the outcome was conflict with you recommend. They said ISF Brembo BBK can do better than F-sport BBK when compare with their reference via www.f-sport.com
but I would take those findings with a grain of salt due to variations in the testing conditions.
02-24-09, 10:53 AM
#33
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I don't know why they recommend ISF BBK more than F-Sport BBK. The reply that I got from Darrel was ;
Ahhh yes, good point. When installing either BBK, you are required to change the wheels. With the F-Sport kit, you can get away with using the 18” G-Spider’s or the 18” ISP wheels. With the IS-F Brembo’s you would be required to install a 19” wheel (the 19” F-Sport wheels will work). The ONLY modification that will need to be performed is for the rear brake splash guard. Because the rotors are much larger than stock, the rear splash guards need to be modified. This modification is described in the Lexus installation instructions for the F-Sport.
And by the way, for the replacement brake pads the IS-F Brembo front and rear pads retail at $592 whereas the F-Sport front and rear pads retail for $614 – close enough in our terms. Now on the rotors, there’s a drastic difference. A single F-Sport brake rotor retails for $1100 and the IS-F Brake rotor retails at a lower $274. With this being said, I believe is safe to say the service and parts support for the IS-F Brembo brakes is better position that the F-Sport brakes.
These lead to higher maintain cost for F-Sport BBK which higher when comparing with ISF Brembo!!!
Is it truth?
Rotors and Pads from Stoptech are expensive than Brembo?????
Ahhh yes, good point. When installing either BBK, you are required to change the wheels. With the F-Sport kit, you can get away with using the 18” G-Spider’s or the 18” ISP wheels. With the IS-F Brembo’s you would be required to install a 19” wheel (the 19” F-Sport wheels will work). The ONLY modification that will need to be performed is for the rear brake splash guard. Because the rotors are much larger than stock, the rear splash guards need to be modified. This modification is described in the Lexus installation instructions for the F-Sport.
And by the way, for the replacement brake pads the IS-F Brembo front and rear pads retail at $592 whereas the F-Sport front and rear pads retail for $614 – close enough in our terms. Now on the rotors, there’s a drastic difference. A single F-Sport brake rotor retails for $1100 and the IS-F Brake rotor retails at a lower $274. With this being said, I believe is safe to say the service and parts support for the IS-F Brembo brakes is better position that the F-Sport brakes.
These lead to higher maintain cost for F-Sport BBK which higher when comparing with ISF Brembo!!!
Is it truth?
Rotors and Pads from Stoptech are expensive than Brembo?????
02-24-09, 11:03 AM
#34
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02-24-09, 11:14 AM
#35
Hmm... I love Sewell, but this reads like advice from someone who's never serviced a BBK.
1. With either of these kits, you'll have to modify ALL of the dust shield/splash guards, not just the fronts. As someone who's worked on both of these kits, I can say this with all confidence. You wouldn't have to "modify" the dust shields for the IS-F Brembo kit because you have to replace them with the IS-F shields.
2. There are a ton of different brand pads you can use with the F-Sport kit, not just the "F-Sport/Lexus" ones they sell at the dealer - and you can get them for much, much cheaper.
3. The reason the IS-F rotor is so much cheaper than the F-Sport rotor is because the OEM IS-F rotor is a one piece cast iron design, and non-directional to boot (meaning there's no right or left - only a front/rear part number). The F-Sport/StopTech rotor is a two-piece floating rotor - superior in weight savings and performance to a one-piece rotor. There's also a separate right/left design for both the front and the rear. When it comes time to change your rotors, you disassemble the rotor and change only the worn friction ring and replace the fasteners. There's no need to buy a complete F-Sport replacement rotor because all you need is the friction ring.
Javier
1. With either of these kits, you'll have to modify ALL of the dust shield/splash guards, not just the fronts. As someone who's worked on both of these kits, I can say this with all confidence. You wouldn't have to "modify" the dust shields for the IS-F Brembo kit because you have to replace them with the IS-F shields.
2. There are a ton of different brand pads you can use with the F-Sport kit, not just the "F-Sport/Lexus" ones they sell at the dealer - and you can get them for much, much cheaper.
3. The reason the IS-F rotor is so much cheaper than the F-Sport rotor is because the OEM IS-F rotor is a one piece cast iron design, and non-directional to boot (meaning there's no right or left - only a front/rear part number). The F-Sport/StopTech rotor is a two-piece floating rotor - superior in weight savings and performance to a one-piece rotor. There's also a separate right/left design for both the front and the rear. When it comes time to change your rotors, you disassemble the rotor and change only the worn friction ring and replace the fasteners. There's no need to buy a complete F-Sport replacement rotor because all you need is the friction ring.
Javier
02-24-09, 11:14 AM
#36
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Depend on what you need from them ;
Performance ; I will choose F-Sport for 6 pistons front & 4 pistons rear. (IS-F Brembo are 6 pistons front & 2 pistons rear)
Brand ; I will go directly with IS-F Brembo. But you also can't get Brembo's brand on calipers because they put LEXUS.
Performance ; I will choose F-Sport for 6 pistons front & 4 pistons rear. (IS-F Brembo are 6 pistons front & 2 pistons rear)
Brand ; I will go directly with IS-F Brembo. But you also can't get Brembo's brand on calipers because they put LEXUS.
02-24-09, 11:30 AM
#37
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But the conflict was happened when I had tried to contact with Stoptech. As we know that, F-Sport BBK was manufactured by Stoptech. So, I had sent an e-mail to ask customer service of Stoptech about the rotors and pads for F-Sport BBK and they already reply.
For the rotors, they recommend their 2 pcs. Aerorotors which is the same as F-Sport rotor but available in Slotted or Drilled.
31.737.1101.99 AeroRotor Friction Ring/Left/Slotted/355x32/$260
31.737.1102.99 AeroRotor Friction Ring/Right/Slotted/355x32/$260
31.626.1101.99 AeroRotor Friction Ring/Left/Slotted/345x28/$255
31.626.1102.99 AeroRotor Friction Ring/Right/Slotted/345x28/$255
For the pads, they recommend Performance Friction 1038 Brake Pads
Front (6 POTS) $175
Rear (4 POTS) $159
So, which supplier information should I believe?
I'm a oversea customer. So, I have to import everything thus make me check more about detail.
For the rotors, they recommend their 2 pcs. Aerorotors which is the same as F-Sport rotor but available in Slotted or Drilled.
31.737.1101.99 AeroRotor Friction Ring/Left/Slotted/355x32/$260
31.737.1102.99 AeroRotor Friction Ring/Right/Slotted/355x32/$260
31.626.1101.99 AeroRotor Friction Ring/Left/Slotted/345x28/$255
31.626.1102.99 AeroRotor Friction Ring/Right/Slotted/345x28/$255
For the pads, they recommend Performance Friction 1038 Brake Pads
Front (6 POTS) $175
Rear (4 POTS) $159
So, which supplier information should I believe?
I'm a oversea customer. So, I have to import everything thus make me check more about detail.
Last edited by g_abac; 02-24-09 at 11:50 AM.
02-24-09, 11:39 AM
#38
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Hmm... I love Sewell, but this reads like advice from someone who's never serviced a BBK.
1. With either of these kits, you'll have to modify ALL of the dust shield/splash guards, not just the fronts. As someone who's worked on both of these kits, I can say this with all confidence. You wouldn't have to "modify" the dust shields for the IS-F Brembo kit because you have to replace them with the IS-F shields.
2. There are a ton of different brand pads you can use with the F-Sport kit, not just the "F-Sport/Lexus" ones they sell at the dealer - and you can get them for much, much cheaper.
3. The reason the IS-F rotor is so much cheaper than the F-Sport rotor is because the OEM IS-F rotor is a one piece cast iron design, and non-directional to boot (meaning there's no right or left - only a front/rear part number). The F-Sport/StopTech rotor is a two-piece floating rotor - superior in weight savings and performance to a one-piece rotor. There's also a separate right/left design for both the front and the rear. When it comes time to change your rotors, you disassemble the rotor and change only the worn friction ring and replace the fasteners. There's no need to buy a complete F-Sport replacement rotor because all you need is the friction ring.
Javier
1. With either of these kits, you'll have to modify ALL of the dust shield/splash guards, not just the fronts. As someone who's worked on both of these kits, I can say this with all confidence. You wouldn't have to "modify" the dust shields for the IS-F Brembo kit because you have to replace them with the IS-F shields.
2. There are a ton of different brand pads you can use with the F-Sport kit, not just the "F-Sport/Lexus" ones they sell at the dealer - and you can get them for much, much cheaper.
3. The reason the IS-F rotor is so much cheaper than the F-Sport rotor is because the OEM IS-F rotor is a one piece cast iron design, and non-directional to boot (meaning there's no right or left - only a front/rear part number). The F-Sport/StopTech rotor is a two-piece floating rotor - superior in weight savings and performance to a one-piece rotor. There's also a separate right/left design for both the front and the rear. When it comes time to change your rotors, you disassemble the rotor and change only the worn friction ring and replace the fasteners. There's no need to buy a complete F-Sport replacement rotor because all you need is the friction ring.
Javier
I think F-Sport BBK also come with their Splash Guard. So, both of F-Sport and ISF Brembo not require any modification but just move the oem off and replace with the new one. I'm right?
The Technic department mention that F-Sport BBK are the same quality as their product line but different only the logo on caliper.
F-Sport BBK Front = Stoptech ST-60
F-Sport BBK Rear = Stoptech ST-40
As I seen the detail, Look like F-Sport BBK will come with better material than ISF Brembo because ISF Brembo was not the same quality as Brembo GT version.
So, F-Sport BBK > ISF Brembo
But Brembo GT BBK > F-Sport BBK
Then, Brembo GT BBK > F-Sport BBK(Stoptech ST-60 & ST-40) > ISF Brembo BBK
Right or wrong?
Last edited by g_abac; 02-24-09 at 11:52 AM.
02-24-09, 11:48 AM
#39
But the conflict was happened when I had tried to contact with Stoptech. As we know that, F-Sport BBK was manufactured by Stoptech. So, I had sent an e-mail to ask customer service of Stoptech about the rotors and pads for F-Sport BBK and they already reply.
For the rotors, they recommend their 2 pcs. Aerorotors which is the same as F-Sport rotor but available in Slotted or Drilled.
31.737.1101.99 AeroRotor Friction Ring/Left/Slotted/355x32/$260
31.737.1102.99 AeroRotor Friction Ring/Right/Slotted/355x32/$260
31.626.1101.99 AeroRotor Friction Ring/Left/Slotted/345x28/$255
31.626.1102.99 AeroRotor Friction Ring/Right/Slotted/345x28/$255
For the pads, they recommend Performance Friction 1038 Brake Pads
Front $175
Rear $159
So, which supplier information should I believe?
I'm a oversea customer. So, I have to import everything thus make me check more about detail.
For the rotors, they recommend their 2 pcs. Aerorotors which is the same as F-Sport rotor but available in Slotted or Drilled.
31.737.1101.99 AeroRotor Friction Ring/Left/Slotted/355x32/$260
31.737.1102.99 AeroRotor Friction Ring/Right/Slotted/355x32/$260
31.626.1101.99 AeroRotor Friction Ring/Left/Slotted/345x28/$255
31.626.1102.99 AeroRotor Friction Ring/Right/Slotted/345x28/$255
For the pads, they recommend Performance Friction 1038 Brake Pads
Front $175
Rear $159
So, which supplier information should I believe?
I'm a oversea customer. So, I have to import everything thus make me check more about detail.
Javier
02-24-09, 11:51 AM
#40
I think F-Sport BBK also come with their Splash Guard. So, both of F-Sport and ISF Brembo not require any modification but just move the oem off and replace with the new one. I'm right?
As I seen the detail, Look like F-Sport BBK will come with better material than ISF Brembo.
So, F-Sport BBK > ISF Brembo
But Brembo GT BBK > F-Sport BBK
Right or wrong?
As I seen the detail, Look like F-Sport BBK will come with better material than ISF Brembo.
So, F-Sport BBK > ISF Brembo
But Brembo GT BBK > F-Sport BBK
Right or wrong?
I would rank the F-Sport BBK ahead of the OEM IS-F Brembo kit just because the F-Sport kit includes two-piece, directional rotors, which are MUCH lighter than the one piece, non-directional rotors that the IS-F BBK uses.
Javier
02-24-09, 12:24 PM
#41
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Hmm... I love Sewell, but this reads like advice from someone who's never serviced a BBK.
1. With either of these kits, you'll have to modify ALL of the dust shield/splash guards, not just the fronts. As someone who's worked on both of these kits, I can say this with all confidence. You wouldn't have to "modify" the dust shields for the IS-F Brembo kit because you have to replace them with the IS-F shields.
2. There are a ton of different brand pads you can use with the F-Sport kit, not just the "F-Sport/Lexus" ones they sell at the dealer - and you can get them for much, much cheaper.
3. The reason the IS-F rotor is so much cheaper than the F-Sport rotor is because the OEM IS-F rotor is a one piece cast iron design, and non-directional to boot (meaning there's no right or left - only a front/rear part number). The F-Sport/StopTech rotor is a two-piece floating rotor - superior in weight savings and performance to a one-piece rotor. There's also a separate right/left design for both the front and the rear. When it comes time to change your rotors, you disassemble the rotor and change only the worn friction ring and replace the fasteners. There's no need to buy a complete F-Sport replacement rotor because all you need is the friction ring.
Javier
1. With either of these kits, you'll have to modify ALL of the dust shield/splash guards, not just the fronts. As someone who's worked on both of these kits, I can say this with all confidence. You wouldn't have to "modify" the dust shields for the IS-F Brembo kit because you have to replace them with the IS-F shields.
2. There are a ton of different brand pads you can use with the F-Sport kit, not just the "F-Sport/Lexus" ones they sell at the dealer - and you can get them for much, much cheaper.
3. The reason the IS-F rotor is so much cheaper than the F-Sport rotor is because the OEM IS-F rotor is a one piece cast iron design, and non-directional to boot (meaning there's no right or left - only a front/rear part number). The F-Sport/StopTech rotor is a two-piece floating rotor - superior in weight savings and performance to a one-piece rotor. There's also a separate right/left design for both the front and the rear. When it comes time to change your rotors, you disassemble the rotor and change only the worn friction ring and replace the fasteners. There's no need to buy a complete F-Sport replacement rotor because all you need is the friction ring.
Javier
I'm very confused as to what you're trying to find out. If you go F-Sport, you're going to have to buy the complete F-Sport kit that comes with everything you need. You won't have to change your brake pads for a few years, unless you plan on tracking the car every weekend. I don't see the conflicting information - A set of front or rear (2) F-Sport rotors (friction ring, hat, & fasteners) retails for $1100, which is true. StopTech just quoted you $255 for each friction ring. What exactly are you trying to find out???
Javier
Javier
02-24-09, 12:26 PM
#42
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The F-Sport BBK does not come with dust shield/splash guards. You have to remove or modify your OEM dust shield to fit, as detailed in the F-Sport instruction manual.
I would rank the F-Sport BBK ahead of the OEM IS-F Brembo kit just because the F-Sport kit includes two-piece, directional rotors, which are MUCH lighter than the one piece, non-directional rotors that the IS-F BBK uses.
Javier
I would rank the F-Sport BBK ahead of the OEM IS-F Brembo kit just because the F-Sport kit includes two-piece, directional rotors, which are MUCH lighter than the one piece, non-directional rotors that the IS-F BBK uses.
Javier
02-24-09, 12:29 PM
#43
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Javier, Thanks very much for the deeply detail and sorry for waste your time. Your information are benefit for me to make a decision because I have to find the detail , part and import them in 1 time for safe the shipping cost.
02-24-09, 12:31 PM
#44
I intend to use slotted rotor for my car. The drilled rotor that come with F-Sport BBK will not durable for track at weekend. I'm not convenient to change the rotor in every weekend for a track. So,can I replace only friction ring(slotted) or have to go with whole set of rotor (Friction ring, hat $ Fasteners)?
You can modify your OEM dust shield and reuse it. That's what I did, and it works fine.
Javier
