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MagnaFlowPart #: 551143
MagnaFlow 551143 Catalytic Converter - Left
⚙️ 54 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$1,521.72Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
📦Direct-Fit CALIFORNIA OBDII CONVERTERS, Left
🚗Fitment: INFINITI and Nissan, 350Z, 370Z, EX35, EX37, G35, G37, M37, Q40, Q50, Q60, Q70, Q70L, and QX50
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Catalytic Converter options
MagnaFlow 551143 Catalytic Converter - Left
| Brand | MagnaFlow |
| Part Number | 551143 |
| Position | Direct-Fit CALIFORNIA OBDII CONVERTERS, Left |
| Mounting Hardware Included | Yes |
| Universal Or Specific Fit | Specific |
| Grade Type | Regular |
| Tube Material | Stainless steel |
| Inlet Type | Bolt-on |
| Outlet Type | Bolt-on |
| Heat Shield Attached | Yes |
| Body Material | Stainless steel |
| Substrate Material | Ceramic |
| Inlet Gasket Included | No |
| Inlet Mounting Hardware Included | Yes |
| Overall Length | 18.875 |
| Air Tube Count | 0 |
| Air Tube Adaptable | No |
| Clamp Included | No |
| Converter Quantity | 2 |
| Finish | Stainless steel |
| Hangers Included | Yes |
| Heat Shield Material | Aluminized steel |
| Main Piping Diameter | 2.25 |
| Oxygen Sensor Location | Post converter |
| Type | Direct-fit |
This part fits 54 vehicles. Search below:
| Year | Make | Model | Body Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2018 | Nissan | 370Z | 3.7L | V6 | Left | ||
| 2017 | Nissan | 370Z | 3.7L | V6 | Left | ||
| 2016 | Nissan | 370Z | 3.7L | V6 | Left | ||
| 2015 | INFINITI | Q40 | 3.7L | V6 | Left | ||
| 2015 | INFINITI | Q50 | 3.7L | V6 | Left | ||
| 2015 | INFINITI | Q60 | 3.7L | V6 | Left | ||
| 2015 | INFINITI | Q70 | 3.7L | V6 | Left | ||
| 2015 | INFINITI | Q70L | 3.7L | V6 | Left | ||
| 2015 | INFINITI | QX50 | 3.7L | V6 | Left | ||
| 2015 | Nissan | 370Z | 3.7L | V6 | Left | ||
| 2014 | INFINITI | Q50 | 3.7L | V6 | Left | ||
| 2014 | INFINITI | Q60 | 3.7L | V6 | Left | ||
| 2014 | INFINITI | Q70 | 3.7L | V6 | Left | ||
| 2014 | INFINITI | QX50 | 3.7L | V6 | Left | ||
| 2014 | Nissan | 370Z | 3.7L | V6 | Left | ||
| 2013 | INFINITI | EX37 | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number DNSXV03.7GAA; Direct-Fit CALIFORNIA OBDII CONVERTERS | |
| 2013 | INFINITI | G37 | Coupe | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number DNSXV03.7GAA; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 2013 | INFINITI | G37 | Coupe | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number DNSXV03.7GAB; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 2013 | INFINITI | G37 | Sedan | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number DNSXV03.7GAA; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 2013 | INFINITI | G37 | Sedan | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number DNSXV03.7GAB; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 2013 | INFINITI | M37 | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number DNSXV03.7GAA; Direct-Fit CALIFORNIA OBDII CONVERTERS | |
| 2013 | INFINITI | M37 | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number DNSXV03.7GAB; Direct-Fit CALIFORNIA OBDII CONVERTERS | |
| 2013 | Nissan | 370Z | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number DNSXV03.7GAA; Direct-Fit CALIFORNIA OBDII CONVERTERS | |
| 2012 | INFINITI | G37 | Coupe | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number CNSXV03.7GAA; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 2012 | INFINITI | G37 | Sedan | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number CNSXV03.7GAA; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 2012 | INFINITI | G37 | Coupe | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number CNSXV03.7GAB; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 2012 | INFINITI | G37 | Sedan | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number CNSXV03.7GAB; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 2012 | INFINITI | M37 | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number CNSXV03.7GAA; Direct-Fit CALIFORNIA OBDII CONVERTERS | |
| 2012 | INFINITI | M37 | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number CNSXV03.7GAB; Direct-Fit CALIFORNIA OBDII CONVERTERS | |
| 2012 | Nissan | 370Z | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number CNSXV03.7GAA; Direct-Fit CALIFORNIA OBDII CONVERTERS | |
| 2011 | INFINITI | G37 | Coupe | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number BNSXV03.7GAA; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 2011 | INFINITI | G37 | Coupe | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number BNSXV03.7GAB; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 2011 | INFINITI | G37 | Sedan | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number BNSXV03.7GAA; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 2011 | INFINITI | G37 | Sedan | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number BNSXV03.7GAB; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 2011 | INFINITI | M37 | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number BNSXV03.7GAA; Direct-Fit CALIFORNIA OBDII CONVERTERS | |
| 2011 | INFINITI | M37 | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number BNSXV03.7GAB; Direct-Fit CALIFORNIA OBDII CONVERTERS | |
| 2011 | Nissan | 370Z | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number BNSXV03.7GAA; Direct-Fit CALIFORNIA OBDII CONVERTERS | |
| 2010 | INFINITI | EX35 | 3.5L | V6 | Left | Certification Level : LEV2 ULEV; Split Date To: To 8/1/2009; CARB Executive Order D-193-133; Engine Family Number ANSXV03.5GAA; Direct-Fit CALIFORNIA OBDII CONVERTERS | |
| 2010 | INFINITI | G37 | Coupe | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number ANSXV03.7GAA; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 2010 | INFINITI | G37 | Coupe | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number ANSXV03.7GAB; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 2010 | INFINITI | G37 | Sedan | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number ANSXV03.7GAA; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 2010 | INFINITI | G37 | Sedan | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number ANSXV03.7GAB; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 2010 | Nissan | 370Z | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number ANSXV03.7GAA; Direct-Fit CALIFORNIA OBDII CONVERTERS | |
| 2009 | INFINITI | G37 | Coupe | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number 9NSXV03.7GAA; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 2009 | INFINITI | G37 | Coupe | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number 9NSXV03.7GAB; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 2009 | INFINITI | G37 | Sedan | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number 9NSXV03.7GAA; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 2009 | INFINITI | G37 | Sedan | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number 9NSXV03.7GAB; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 2009 | Nissan | 350Z | 3.5L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number 9NSXV03.5GAB; Direct-Fit CALIFORNIA OBDII CONVERTERS | |
| 2009 | Nissan | 370Z | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number 9NSXV03.7GAA; Direct-Fit CALIFORNIA OBDII CONVERTERS | |
| 2008 | INFINITI | G35 | 3.5L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number 8NSXV03.5GAB; Direct-Fit CALIFORNIA OBDII CONVERTERS | |
| 2008 | INFINITI | G37 | 3.7L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number 8NSXV03.7GAA; Direct-Fit CALIFORNIA OBDII CONVERTERS | |
| 2008 | Nissan | 350Z | 3.5L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number 8NSXV03.5GAB; Direct-Fit CALIFORNIA OBDII CONVERTERS | |
| 2007 | INFINITI | G35 | Sedan | 3.5L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number 7NSXV03.5GAE; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 2007 | Nissan | 350Z | 3.5L | V6 | Left | Certification Level : LEV2 ULEV; CARB Executive Order D-193-133; Engine Family Number 7NSXV03.5GAE; Direct-Fit CALIFORNIA OBDII CONVERTERS |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.