How reliable is this fitment answer?

Confidence: Confirmed (3 of 3). Backed by a manufacturer document, or two or more independent sources agree on a specific checkable fact. Based on 2 cited source(s), last verified 2026-10-26.

What is the factory spec for the OEM Evo IX (2006, all US trims) Brembo brakes: 320 mm 4-piston front, 300 mm 2-piston rear on a Mitsubishi Lancer Evolution IX (2006)?

Q: What is the factory spec for the OEM Evo IX (2006, all US trims) Brembo brakes: 320 mm 4-piston front, 300 mm 2-piston rear on a Mitsubishi Lancer Evolution IX (2006)?

Factory specification. Brembo brakes on every 2006 trim: ventilated 320 x 32 mm front rotors with 4-piston calipers and ventilated 300 x 22 mm rear rotors with 2-piston calipers (MMNA spec sheet). The RS has no ABS; the IX and MR have 4-channel Sport ABS with EBD.

Added 2026-10-26 · Updated 2026-10-26

Short answer: Factory specification Confirmed

Verdict:Factory spec Confirmed confidence (3 of 3) · 2 sources

Factory specification: Brembo brakes on every 2006 trim: ventilated 320 x 32 mm front rotors with 4-piston calipers and ventilated 300 x 22 mm rear rotors with 2-piston calipers (MMNA spec sheet).

Years: 2006 · Applies to: all (RS has no ABS) · 2 sources · Last verified 2026-10-26

Safety-critical part. This spec is confirmed from manufacturer documentation (listed under Sources). Still check it against the factory service manual for your exact car, or have a qualified shop do or check the work.

Part	OEM Evo IX (2006, all US trims) Brembo brakes: 320 mm 4-piston front, 300 mm 2-piston rear
Vehicle	Mitsubishi Lancer Evolution IX (2006)
Years	2006
Trim / condition	all (RS has no ABS)
Verdict	Factory spec Specification
Confidence	Confirmed 3 of 3 — Backed by a manufacturer document, or two or more independent sources agree on a specific checkable fact.
Last verified	2026-10-26 (date the cited sources were last read)

Details

Brembo brakes on every 2006 trim: ventilated 320 x 32 mm front rotors with 4-piston calipers and ventilated 300 x 22 mm rear rotors with 2-piston calipers (MMNA spec sheet). The RS has no ABS; the IX and MR have 4-channel Sport ABS with EBD.

Specs

front: 320 x 32 ventilated, 4-piston
rear: 300 x 22 ventilated, 2-piston

More for this car

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Sources

2006 Mitsubishi Lancer Evolution IX specifications (MMNA spec sheet) — Mitsubishi Motors North America (hosted by The Auto Channel) (mfr spec; read 2026-10-26; full page read)
Front 320/32 ventilated 4-piston; rear 300/22 ventilated 2-piston; ABS N/A on RS.
New Mitsubishi Lancer Evolution IX rockets forward with brute power and race-inspired performance — Mitsubishi Motors North America (mfr spec; read 2026-10-26; full page read)
Four-wheel ventilated Brembo discs.

Summaries are in our own words. Fitment is not guaranteed — disclaimer.

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