Catalytic Converter
Shop Cost
~$1500
DIY Parts
~$200
You Save
~$1300
Tools needed (one-time, if you don't own them)~$265
Tools Required (6)
Jack & jack stands
Socket set
Wrench set
Penetrating oil
Reciprocating saw
Breaker bar
Parts & Consumables
Catalytic converterGasketsNew hardware
Pro Tip Check state laws for CARB compliance. Bolts WILL be seized.
🚗 Vehicle-Specific Notes
Honda
California models need CARB-compliant cat. Check state emissions requirements.
Toyota
Very common theft target due to high precious metal content. Bolt-on or weld.
Ford
Bolt-on with gaskets on most. Studs may break — penetrant 24hrs before.
Subaru
Close-coupled to header. May need to replace as header-cat assembly.
BMW
Multiple cats (pre-cat + main cat). Check both. OEM is expensive — check for CARB-compliant aftermarket.
❓ Common Questions
What tools do I need for a catalytic converter?
You need 6 tools: Jack & jack stands, Socket set, Wrench set, Penetrating oil, Reciprocating saw, Breaker bar. Parts required: Catalytic converter, Gaskets, New hardware.
How much does a catalytic converter cost DIY vs shop?
A shop charges approximately $1500. Doing it yourself costs about $200 in parts, saving you $1300.
How hard is a catalytic converter to do yourself?
Rated Advanced (4/5 difficulty). Typically takes 2-4 hrs. Check state laws for CARB compliance. Bolts WILL be seized.
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