All the above mentioned tires are excellent replacement for the Diamaris. Like PNG said if you like the Diamaris then there's no reason to change to anything else.

Another tire that deserves mention is the Conti SportContact. I'm currently running them and they're solid performer, very comparable to the Diamaris.

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Dinan S1 pkg / 22" Iforged Swift - Toyo 295F*315R / Eisenmann Race - OEM tips / H & R 15mm front
30mm rear spacers / Euro-spec headlights / CF M Competition steering wheel / Full CF interior /
6000K D2S / HID fogs / AiBrights V3 / Interior Xenon / LED sidemarkers / Matte black grille & hood vents