Stock Speaker

What are the best speaker to replace stock speakers in a 06 350z coupe and what size are the stock speakers?

I still have the stock radio installed

Use selector of attached link;
Front and rears are 6.5×3
Tweeters 1×1

http://www.pioneerelectronics.com/PUSA/Products/CarAudioVideo/FitGuide

TS-160ER seem to be the best.

Speaker comparison Hogtunes and stock speakers

Toyota Matrix 03-08 Front, Right or Left Radio Speaker 86160-02450 $22.99

3000GT Stealth INFINITY Rear Stock 6×9 SPEAKERS Driver Passenger oem factory $54.00

grand am, alero stock tan speaker, tweeter with door trim passenger RH $13.27

GS300 GS400 OEM front dash speakers tweeters STOCK $40.00

Ford Festiva Tan Colored Front Speaker Covers and Stock Speakers $34.99

RCA 3-1/8″ 13 ohm Speaker (New Old Stock) Genuine Replacement Part In Box $2.50

Klipsch RC-7 Center Speaker CHERRY COLOR A STOCK $650.00

Infinity RS5 house speaker tweeter original stock replacement part used works $9.99

A/D/S 300i Car speakers, New old stock $125.00

7.1 Surround Speaker 3 Gang Decora Wall Plate with HDMI **GUARANTEED IN STOCK** $29.94