I purchased the 6 in 2007 with 30k miles on the odo. It was completely stock, but in the last 4 years it's been transformed into a beautiful dd and weekend track monster.

Mod list...

Engine | Transmission
CP-e MAFci Non-Tunable CAI
AEM DryFlow & AFE Dryflow Filters (swap at oil changes)
Injen Hydroshield
Fluidampr Underdrive Crank Pulley
Optima 34R Red Top Battery
Custom Axle-Back Exhaust
Street Unit Rear Engine Mount (62 duro)
Modified EGR System (egr mod)
Mazdaspeed Short Throw Shifter
TWM Shifter Bracket
NR-G Reduced PSI Hood Dampers
GReddy Aluminum Air Diversion Panel (painted satin black)
Carbon Fiber Air Diversion Panel (for shows)
UMS Tuning Billet Oil Cap
Custom Painted Engine Covers
360 Infinite Engine Dress Up Kit

Suspension
Ksport Version RR Coilovers
Bilstein HD Series Rear Shocks
RacingBeat Front & Rear Sway Bars
AWR Front & Rear Adjustable End Links
Megan Racing H-Brace
GTSPEC Rear Trailing Braces
Street Unit Rear Floor Bar
Freedom Design Upper Strut Bar

Wheels | Tires | Brakes
Daily: 5Zigen FN01R-C 18x7.5 Wheels (et 42) w/ General Exclaim UHP 225/40 Tires
Track: Drag DR-33 18x7.5 Wheels (et 45) w/ Dunlop Direzza Star Spec Z1 225/40 Tires
Gorilla Lug Nuts
Hawk HPS Brake Pads
Techna-Fit Stainless Steel Braided Brake Lines (red)
Duplicolor/G2 Painted Calipers (black)

Interior
OEM Black Leather Seats
OEM Moon Roof
Homelink Rearview Mirror
2008 Mazda3 Shift Knob
LED Dome Lights
Mazdaspeed6 OEM Aluminum Pedals
Mazdaspeed6 OEM Aluminum Door Sills
Oznium Red CCFL's Under Dash & Rear Seats
Oznium Red Superflux LED's in Cup Holders
Oznium White Flexible LED Strips in Trunk

Exterior
Seibon VS-II CF Hood (painted)
NextMod BR Lip (custom molded to front bumper)
NextMod AE Badgeless Grille
Apexcone 6000K HID's in Low Beams
Apexcone 6000K HID's in Integrated Fogs
Custom Painted Headlight Bezels (satin Black)
Smoked Side Markers
AIT Racing Carbon Fiber Roof Spoiler
Molded Rear Bumper
Mazdaspeed6 OEM Tail Lights
RPM Smoked LED Rear Reflectors
Removed 'Mazda6' Badging on Trunk
Custom Evil M Rear Emblem (painted satin black)
Benen Ind. Rear Tow Hook (painted satin black - for track days only)
Custom Powder Coated Black Mesh Lower Grilles
Bosch Icon Wiper Blades
35% Tint Front Windows
20% Tint Rear Windows
55% Tint on Entire Windshield w/ 20% brow
Stubby Antenna (painted satin black)
License Plate LED's
5-Brake Light Mod
Side Marker-to-Turn Signal Mod
Chrome-Dipped Turn Signal Bulbs
Chrome-Dipped Blue Glass Reverse Bulbs

Audio | Electronics
MSD DashHawk V2
Metra Turbo2 Dash Kit
Alpine CDA-105 Headunit
Alpine MRP-M500 Class D Amplifier
2x12" MTX 4500 Subs in Thunder Box
Custom Subwoofer "Skin"
PAC SWI-JACK Alpine Steering Wheel Controls Adapter
Monster Cables Micro XLN RCA Cables
Rockford Fosgate 1.2 Farad Capacitor
Tsunami & KnuKonceptz Wiring
StreetWires Distribution Block
Dynamat & Second Skin Sound Deadening

Fluids
Mobil1 5W-20 Synthetic Motor Oil
Redline MT-90 Synthetic Transmission Fluid
ATE TYP 200 Brake Fluid

Dyno
208 WHP
202 WTQ

Awards/Recognition
2008 AZMC Dyno Day "Quietest" Mazda (pre exhaust)
January 2010 AZMC Member of the Month
April 2010 6Crew 6 of the Month
July 2010 6Crew Calendar Featured Car