Mitsubishi ASX Exhaust System: Specs, Fitment & Common Faults
A genuinely useful piece of context worth knowing about Mitsubishi's DPF history: DPF faults have been documented returning shortly after replacement, sometimes traced to damage caused during the repair itself.
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OEM Part Number: confirm via VIN — Rear silencer (aftermarket) Bosal 177-683 / Walker 22239
| Rear silencer (back box) — aftermarket | Bosal 177-683, 177-673 (accessories needed); Walker 22239 (600 mm, code 61), 22230 (310 mm, code 61), 23662 (800 mm, code 52); Ernst 690027, 690010; Vegaz MIS-223, MIS-225, MIS-205; Polmo 14.11 (3-door), 14.12 (5-door), 14.142; Izawit 19.025, 19.003. |
|---|---|
| Centre / intermediate silencer — aftermarket | Walker 22228 (650 mm); MTS 01.54570, 01.50169, 01.50578, 01.58400, 01.57150, 01.50166; Vegaz MIS-121, MIS-191 (centre, 3-door SWB); Polmo 14.09. |
| Front pipe / catalytic converter (DPF on diesels) — aftermarket | Walker 28168 (420 mm, code 91), 28876 (455 mm, code 91); Vegaz MIK-979 (Euro 6), MIK-982 (Euro 5), MIK-976/970 (Euro 4), MIK-972 (front); JMJ 1080382 (710 mm), 1090035 (475 mm). |
| Genuine (OE) numbers quoted | None quoted in catalogue listings — order genuine parts against your VIN |
| Fitment notes | Engine codes GA1W, GA2W, GA3W, GA5W, GA6W, GA8W (1.6 MIVEC to 2.2 DI-D) listed but not tied to parts; 3 vs 5-door only in Polmo refs. |
Mitsubishi ASX Exhaust System: The Part That Announces Its Own Problems
On the Mitsubishi ASX, most faults are things you'd spot visually first, but this one usually announces itself acoustically — a rattle, a drone, a noticeable jump in noise levels. That's actually helpful, since it means you'll likely notice trouble well before it gets serious.
Mitsubishi ASX Exhaust System: What It Does
Three jobs happen inside the Mitsubishi ASX's exhaust system: routing burnt gases away from the engine, quieting them through the silencer, and treating emissions via a catalytic converter and particulate filter. Petrol and diesel variants often need completely different systems to meet their respective emissions requirements.
Mitsubishi ASX Exhaust System: Watch: Replacing It
Outlander Sport is the US name of the ASX; title-only match, content unconfirmed
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A Genuinely Useful Piece of Context Worth Knowing About Mitsubishi's DPF History — Mitsubishi ASX Exhaust System
If you're cross-shopping against a diesel Outlander or L200, this is genuinely worth knowing: documented cases describe DPF faults returning shortly after replacement, in at least one case traced to technicians accidentally damaging the turbo boost pipe during the original repair work, rather than the replacement part itself being faulty. This doesn't directly affect this specific model, but is worth knowing as context if you ever face a similar recurring DPF issue.
It's also worth knowing that an EGR valve sticking open can cause excessive soot accumulation that then gets misdiagnosed as a DPF fault specifically, and that a low or empty DPF additive fluid level can trigger warning lights that look identical to a genuine filter fault.
Mitsubishi ASX Exhaust System: 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 Mitsubishi Exhaust System
The same part, covered across other Mitsubishi models.