Good-Win Racing Mazda Performance Parts

Mazda3 2004-2017 · Engine


Uncategorized Engine

MazdaSpeed 3 Koyo V-Core Radiator (KH061816) MazdaSpeed 3 Koyo V-Core Radiator (KH061816)
04-09 Mazda3 2.3L / 07-09 MazdaSpeed3
$380.00
AEM 30-3000 Water/Methanol Injection AEM 30-3000 Water/Methanol Injection
2004-2017
$438.99
AEM 52mm Black Face Analog Wideband Air/Fuel Gauge AEM 52mm Black Face Analog Wideband Air/Fuel Gauge
2004-2017
$219.00
AEM Water/Methanol FAILSAFE Device - 1/4" SAE AEM Water/Methanol FAILSAFE Device - 1/4" SAE
2004-2017
$267.70
AEM Water/Methanol FAILSAFE Device - 4mm Metric AEM Water/Methanol FAILSAFE Device - 4mm Metric
2004-2017
$267.70
AEM Wideband Air/Fuel and Boost in One Gauge! AEM Wideband Air/Fuel and Boost in One Gauge!
2004-2017
$315.99
AEM Wideband Failsafe Gauge AEM Wideband Failsafe Gauge
2004-2017
$315.99
AEM WIDEBAND GAUGE UEGO CONTROLLER 30-4100 A/F AEM WIDEBAND GAUGE UEGO CONTROLLER 30-4100 A/F
2004-2017
$219.00
HKS Iridium M-Series Spark Plug HKS Iridium M-Series Spark Plug
2006 · 2.3L
$27.50
Koyo Drain Plug Koyo Drain Plug
2004-2017
$9.95
Samco Coolant 3 Hose Kit - BLACK Samco Coolant 3 Hose Kit - BLACK
2007-2010 · MazdaSpeed3
$317.00
Samco Coolant 3 Hose Kit - BLUE Samco Coolant 3 Hose Kit - BLUE
2007-2010 · MazdaSpeed3
$317.00
Samco Coolant 3 Hose Kit - RED Samco Coolant 3 Hose Kit - RED
2007-2010 · MazdaSpeed3
$317.00

REVIEWS

After reading many other positive reviews on both the GWR and Miata forums I finally decided to buy this product. My main concern for many months was whether or not I was up to the task of installing the header. But with the excellent instructions on Brian's forum as well as several Miata forum threads it turned out easier than I expected. After receiving notice that the header would arrive on a Friday afternoon, I began the disassembly process. After about 3 hours I had the stock manifold out. Later that afternoon the new catted header arrived right on schedule. And it is a thing of beauty. I opted for the stainless version. Installation on Saturday morning took another 3 hours, although I could have shaved some time off of that but I was actually enjoying the process of double checking torque values and cleaning up my engine compartment. I already have the GWR catted midpipe, so that connection was a snap. I put everything back together, reconnected my battery, and went for a drive. NO CODES! Nice throaty sound with my RSII muffler, and a significant boost in power and low/mid torque. Another happy camper here. I since have added a M-E tune and I feel I have realized all of the gains that Brian has achieved on his 2012 project Miata. I've put several hundred miles on my Miata since the install with zero problems. This is the car that Mazda should have built all along. Thanks Brian.

-- Ron P.

Hello Brian, the swaybar and endlinks came in today. I am very pleased with the packaging and it arrived on time. Also thank you for excellent customer service and correcting my order no-hassle. I will definitely be ordering from Good-Win Racing again.

-- - Christopher