Good-Win Racing Mazda Performance Parts

Miata 1990-2005 · Miata Exhaust & Mufflers · Catalytic Converter


Miata catalytic converters often clog with age and choke off performance. If your Miata won't accelerate strongly in the upper RPM range it may be a failing catalytic converter. Note that the 1990 through 1997 Miata came with a bolt in catalytic converter but the later 1999 through 2005 Miata had a converter welded into the exhaust midpipe. For additional information and larger pictures click into the individual Miata catalytic converter choices below.

RoadsterSport Midpipe with Catalytic Converter and Resonator, Federal version RoadsterSport Midpipe with Catalytic Converter and Resonator, Federal version
1999-2005
$369.00
RoadsterSport CARB CERTIFIED Midpipe with Catalytic Converter and Resonator RoadsterSport CARB CERTIFIED Midpipe with Catalytic Converter and Resonator
1999-2000
$499.00
RoadsterSport CARB CERTIFIED Midpipe with Catalytic Converter and Resonator for 2001-2004 Miata RoadsterSport CARB CERTIFIED Midpipe with Catalytic Converter and Resonator for 2001-2004 Miata
2001-2004
$499.00
RoadsterSport CARB CERTIFIED Midpipe with Catalytic Converter and Resonator for 2005 Miata RoadsterSport CARB CERTIFIED Midpipe with Catalytic Converter and Resonator for 2005 Miata
2005
$499.00
MagnaFlow Catalytic Converter - Direct-Fit MagnaFlow Catalytic Converter - Direct-Fit
1990-1993 · Miata

CARB Approved!

$269.00
MagnaFlow High Flow Catalytic Converter MagnaFlow High Flow Catalytic Converter
1990-1993 · Miata

NOT CARB Legal

$145.00
RoadsterSport High Performance Miata Catalytic Converter-FEDERAL Version RoadsterSport High Performance Miata Catalytic Converter-FEDERAL Version
1994-1997
$199.00
RoadsterSport High Performance Miata Catalytic Converter-CALIFORNIA VERSION RoadsterSport High Performance Miata Catalytic Converter-CALIFORNIA VERSION
1994-1995

(NEW CARB CORE 332105)

$239.00
RoadsterSport High Performance Miata Catalytic Converter-CALIFORNIA VERSION RoadsterSport High Performance Miata Catalytic Converter-CALIFORNIA VERSION
1996-1997
$289.00
RoadsterSport STAINLESS STEEL Straight Pipe RoadsterSport STAINLESS STEEL Straight Pipe
1994-1997
$85.00
$79.00
BossFrog Miata Straight Pipe BossFrog Miata Straight Pipe
1994-1997

Discontinued

$75.00
BossFrog Straight Cat (test pipe), smaller diameter BossFrog Straight Cat (test pipe), smaller diameter
1990-1993

Discontinued

$75.00
BossFrog Straight Cat Larger diameter (test pipe) for AfterMarket Exhausts BossFrog Straight Cat Larger diameter (test pipe) for AfterMarket Exhausts
1990-1993

Disocntinued

$75.00
Miata Race Pipe Miata Race Pipe
1990-1993
$87.00
Racing Beat Miata Miata Race Connecting MidPipe with Presilencer Racing Beat Miata Miata Race Connecting MidPipe with Presilencer
1999-2005
$231.00
Replacement Catalytic Converter, NON-CARB Replacement Catalytic Converter, NON-CARB
1994-1997
$149.00

Current Specials!

Miata 1990-2005: Miata Exhaust & Mufflers: Catalytic Converter


RoadsterSport STAINLESS STEEL Straight Pipe RoadsterSport STAINLESS STEEL Straight Pipe
1994-1997
$85.00
$79.00

REVIEWS

I received great help from Good-Win on choosing these wheels and tires and the cost + shipping was very nice, but the help you get here is worth any cost.

-- Bob H.

Brian, Thank you!!! We last spoke in November about some upgrades for my 2011 MX5 soft top. It has finally warmed up in NE Ohio and two relaxed weekends of wrenching on my car were well worth the effort. Installation of the RoadsterSport ceramic coated street header was straight forward and took under 8 hours, including a 40 minute test drive and cleanup of the garage! Combined with the RoadsterSport Q exhaust, the sound is fantastic and the increased torque, horsepower and performance make it a blast to drive. The addition of the Cobalt shock tower brace, Racing Beat sway bars, ILM front power train and X braces really enhanced the ride - minimal body roll, comfortable and very responsive. Your recommendations really helped transform the car from great to fantastic. Your research, product development and candid recommendations make you a standout in the industry. My only questions are - what's next on my list .... And how soon will my wife want the same upgrades on her 2012 PRHT ... Again, thank you!!! Charles G

-- Charles