I'm compiling a list of active forum users that you can contact if you have a specific question about a part. I'm editing the list as I find out who has what.
Engine
Racing Beat Axleback - @wingzero_ (2.5) @MrSoozy (2.0) @razerer (2.5, resonator delete)
Mazdaspeed3 Exhaust - @Crespo (2.5) and @Frnchplayr15 (2.0)
Mazdaspeed3 Midpipe (res and cat deleted) - @DomTheGhost
Custom Magnaflow axleback - @color0 (Skyactiv)
MSDS Header - @Crespo @wingzero_
Simota CBII 657 SRI - @3i2011 @Frnchplayr15 (2.0)
K&N Typhoon - @wingzero_ (2.5) he also had a Simota CBII on his 2.5
TRZ Dogbone RMM - @wingzero_ (6 speed manual) @199027 (5 speed auto)
JBR 80a RMM - @Crespo
JBR 70a PMM - @DomTheGhost
JBR Solid Shift Bushings - @StaFForD (6 speed manual Skyactiv) @Rherold (5 speed manual)
Suspension
Corksport RSB - @Velez3Sport (sedan) @color0 (hatch) @My spoon is too big (gen one)
Tripoint RSB - @color0
Mazdaspeed3 OEM RSB - @My spoon is too big
Racing Beat RSB - @wingzero_
Tri-Point Rear Endlinks - @DomTheGhost
Racing Beat FSB - @Rherold9
Raceland - @MrSoozy
D2 RS - @Rherold9
H&R - @warlord
KW V3 - @DomTheGhost
RM 1.75 - @mekanick
Eibach Sport Line - @Velez3Sport
Eibach Pro Kit - @StaFForD @My spoon is too big
Tien S Techs - @slipzy
SPC Camber Arms - @Rherold9 @mekanick
Corksport Mid-Chassis Brace - @Velez3Sport
Speedline Trunk Brace - @DomTheGhost
Brakes
Electronics
DDM 55w Raptor - @DomTheGhost
Engine
- Tune
- Exhaust
Racing Beat Axleback - @wingzero_ (2.5) @MrSoozy (2.0) @razerer (2.5, resonator delete)
Mazdaspeed3 Exhaust - @Crespo (2.5) and @Frnchplayr15 (2.0)
Mazdaspeed3 Midpipe (res and cat deleted) - @DomTheGhost
Custom Magnaflow axleback - @color0 (Skyactiv)
MSDS Header - @Crespo @wingzero_
- Intake
Simota CBII 657 SRI - @3i2011 @Frnchplayr15 (2.0)
K&N Typhoon - @wingzero_ (2.5) he also had a Simota CBII on his 2.5
- Driveline
TRZ Dogbone RMM - @wingzero_ (6 speed manual) @199027 (5 speed auto)
JBR 80a RMM - @Crespo
JBR 70a PMM - @DomTheGhost
JBR Solid Shift Bushings - @StaFForD (6 speed manual Skyactiv) @Rherold (5 speed manual)
Suspension
- Rear Sway Bar
Corksport RSB - @Velez3Sport (sedan) @color0 (hatch) @My spoon is too big (gen one)
Tripoint RSB - @color0
Mazdaspeed3 OEM RSB - @My spoon is too big
Racing Beat RSB - @wingzero_
Tri-Point Rear Endlinks - @DomTheGhost
- Front Sway Bar
Racing Beat FSB - @Rherold9
- Coilovers
Raceland - @MrSoozy
D2 RS - @Rherold9
H&R - @warlord
KW V3 - @DomTheGhost
- Springs
RM 1.75 - @mekanick
Eibach Sport Line - @Velez3Sport
Eibach Pro Kit - @StaFForD @My spoon is too big
Tien S Techs - @slipzy
- Struts
- Camber Arms
SPC Camber Arms - @Rherold9 @mekanick
- Braces
Corksport Mid-Chassis Brace - @Velez3Sport
Speedline Trunk Brace - @DomTheGhost
Brakes
- Solid Lines
Electronics
- HID Headlights
DDM 55w Raptor - @DomTheGhost