Lexus CT200h Exhaust System: Specs, Fitment & Common Faults

Confirmed: Lexus UK officially confirms this model has been a particular theft target — plus an honest, alarming account of an owner paying for a CATLOC and insurance excess, only for thieves to steal the cat again anyway.

Illustration for editorial purposes

OEM Part Numbers

Accuracy note: genuinely worth knowing: exhaust systems on the CT200h are typically sold in sections (manifold/downpipe, catalytic converter, centre section, rear silencer) rather than as one single part — check which specific section has actually failed (a rattle often points to a loose heat shield rather than the exhaust itself) before ordering the whole system unnecessarily.

Front pipe with catalytic converter	Genuinely a hybrid-specific assembly, reflecting the hybrid system's different exhaust temperature and load profile compared with a conventional petrol-only equivalent
Centre/intermediate pipe	A genuinely separate section from both the front pipe and rear silencer
Rear silencer	Confirm your exact generation and trim, since Lexus used multiple distinct rear silencer references across this model's production run

The Part That Announces Its Own Problems

Unlike a lot of the parts on this site, this is one where you'll usually hear the fault before you see it — a rattle, a drone, a sudden increase in noise that wasn't there last week. That's actually useful, since it gives you a head start on catching problems early.

Before you buy: exhaust configuration differs significantly by engine size, fuel type and whether your car has a particulate filter. Always confirm against your VIN before ordering.

What It Does

The exhaust system channels burnt gases away from the engine, reduces noise through the silencer, and on most modern cars, treats emissions through a catalytic converter and particulate filter before gases exit the tailpipe. Petrol and diesel versions of the same model often use entirely different systems due to different emissions treatment requirements.

Lexus CT200h Exhaust System reference plate

Confirmed: A Genuine Official Warning Worth Knowing About Theft — Lexus CT200h Exhaust System

This is genuinely worth knowing directly from Lexus themselves: Lexus UK has officially confirmed this specific model has been a particular target for catalytic converter theft, given how easily accessible the converter is from underneath the car. It's genuinely worth taking preventative measures seriously given this direct, official acknowledgement.

A genuinely honest, alarming real account worth knowing about a commonly recommended anti-theft device: documented cases describe owners having their whole exhaust system stolen, paying a significant insurance excess, then paying further for Lexus's own recommended CATLOC anti-theft device to be fitted. Despite this, thieves have still returned and successfully cut the catalytic converter free from the rest of the exhaust, leaving the CATLOC device itself still attached to the car with nothing left for it to actually protect — worth knowing this device doesn't guarantee protection, even when properly fitted at genuine expense.

It's also genuinely worth knowing an important point relevant to any insurance claim: the way thieves typically cut a catalytic converter free, often using an angle grinder or a wire saw, frequently damages the surrounding rear pipe and downpipe as well, meaning a genuine insurance claim will often need to cover replacement of most of the exhaust system, not just the missing converter itself.

Warning Signs, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Exhaust System Guide for warning signs and fault codes to watch for, confirming fitment against your VIN, and which aftermarket brands are worth trusting.

More Lexus Exhaust System

The same part, covered across other Lexus models.

Lexus CT200h Exhaust System: Specs, Fitment & Common Faults

OEM Part Numbers

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Confirmed: A Genuine Official Warning Worth Knowing About Theft — Lexus CT200h Exhaust System