BenzUnited Parts
AEM DryFlow 28-20181 High-Flow Air Filters – Mercedes-AMG M113K | E55, CLS55, SL55, S55, CL55, G55 (Set of 2)
AEM DryFlow 28-20181 High-Flow Air Filters – Mercedes-AMG M113K | E55, CLS55, SL55, S55, CL55, G55 (Set of 2)
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The AEM DryFlow 28-20181 is a pair of high-flow, washable panel air filters for the supercharged Mercedes-AMG M113K 5.4L V8 — E55, CLS55, SL55, S55, CL55 and G55. This listing includes both filters, because the M113K uses two filter housings and a complete change needs both. Synthetic, oil-free media, made in the United States, drops straight into the factory housings with no tuning and no modification.
What You Get
| Part Number | AEM 28-20181 |
| Quantity Included | 2 filters (left and right) — one complete vehicle set |
| Filter Media | Synthetic, oil-free |
| Tune Required | No |
| Install | Drop-in, 5–10 minutes, Torx driver required |
| Reusable | Yes — washable, no oil required |
| Made In | United States |
| Ships | Within 2 business days |
Cold Air Intakes Aren't Pulling Cold Air
Ironically, "cold air intakes" use open cone filters, exposing them to hot air from the engine bay. When IATs rise, the ECU then pulls timing, reducing power when you are driving hard or doing repeated pulls. On a supercharged engine with a heat exchanger already fighting intake temperature, that is the last thing you want.
The factory Mercedes airbox already channels cold air from the outside. Sealed, ducted to the grille. The paper panel inside is the only real restriction, and that is what these performance air filters replace.
Fitment — M113K 5.4L Supercharged V8
| Model | Chassis | Years |
|---|---|---|
| E55 AMG | W211 / S211 | 2003–2006 |
| CLS55 AMG | C219 | 2006 |
| SL55 AMG | R230 | 2003–2008 |
| S55 AMG | W220 | 2003–2006 |
| CL55 AMG | C215 | 2003–2006 |
| G55 AMG | W463 | 2005–2011 |
Install & Maintenance
Undo the Torx screws on each airbox lid, lift the lid, swap the filter, and put it all back together. No cutting, no wiring, no tuning.
No oil, ever. Wash with AEM cleaning solution and water, rinsing from the clean side outward, air dry at room temperature, and reinstall. Nothing to re-oil means nothing to over-oil, so the MAF question never comes up.
Warranty, Shipping & Returns
- Warranty: AEM Lifetime Limited Warranty against defects in materials and workmanship.
- Shipping: Ships within 2 business days.
- Returns: 30-day returns on unused items in original packaging.
Questions
How many filters does my car need?
Two. The M113K uses two filter housings, one per bank. This listing ships both, so you are not hunting for a second panel after the box arrives.
Do I need a tune to run these?
No. These are direct replacements for the factory panels and work on a completely stock car. A tune is where the real power is, but it is not a requirement for fitting these.
Will this contaminate my MAF sensor?
No. Dry media uses no oil at all, so there is nothing to migrate downstream. This is the filter to buy if MAF contamination is the thing keeping you off a washable filter.
Is a cold air intake better than this?
On the M113K, no. The factory box is already sealed and ducted to outside air, so the paper panel is the restriction rather than the box. An open cone gains a little peak flow and gives up intake temperature, which is the wrong trade on a supercharged engine. A full intake kit earns its place once you are chasing airflow beyond what the factory box supports.
How often do they need cleaning?
AEM publishes up to 50,000 miles between cleanings depending on driving conditions. Clean them when visibly loaded; dusty conditions shorten that considerably.
Do these fit the factory airbox without modification?
Yes. They are OEM-shape panel filters. Nothing is cut, drilled, relocated or removed, and the factory heat shielding stays exactly as it is.
