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hey eric

doing the same thing as you actually.

After alot of research i found that you wont notice any difference between RDA and DBA on the street. The RDA are a softer disc so they will wear quicker, however, they are alot cheaper. As you would of seen on the rda group buy. So its probably best bang for buck if you went with the RDA discs. This, in the end, is what i chose and have just ordered with the RDA group buy batch 49.

I got told the best combo if what your doing is mainly street driving is RDA slotted with green stuff pad. Which is a less aggresive pad so it wont eat away at the rotors. They are more than capable of a few track days here and there. But if your after a tracked only car the you would have to go red/yellow which are made from harder compounds.

Just my 2cents

hope it help eric.

Price wise with slotted discs, DBA (something like $480 for fronts to suit my car) are close to twice as much as the RDA equivelent ($270 for fronts to suit my car). It's really up to you if you want to pay nearly twice as much for virtually the same product. $500 (for my car) is in Endless (slotted) front rotor territory imported from Japan.. so if you were willing to pay that much I would choose Endless over DBA.

i used the DBA series 4000 slotted rotors last year for track/street duty, and i had no problems, they dissipate their heat pretty well

as long as you don't use cross-drilled rotors, and over-heat them there's no problems

I did a brake upgrade with RDA slotted discs up front with green stuff pads and I think there pretty good. Ive had them for about two months now. Also worth doing is putting some good brake fluid, dot 5.1 is what I put. And I also put adr braided brake lines all round.

If you get the RDA slotted discs its probably better spending the extra money on the gold something discs coz there apparantly more rust resistant. Looks better under the rims.

DBA a few years ago, I had issues with them crazing. Now they seem to be better quality. Last set I used were 4000 slotted's with 400deg, then 500deg pads and they held up well on two trackdays as well as daily duties. Still A1 when I pulled em off. Pulled em off because I upgraded to a larger rotor setup.

RDA are good for street, but after seeing how they perform on a mates car, I wouldn't track day them.

Stay away from bendix ultimates, they chew your rotors a fair bit.

Stock nissan drilled discs I bought for $160 each from nissan were okay for light street duty, but cracked over time running ultimates, couldn't take the heat!

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