Upgrade side-mount intercoolers for the 991 Turbo, built around freeform cast aluminum end tanks that spread charge air across the full core. Machined 70 mm (2 3/4 in) connections and CFD-developed silicone hoses remove the OE restrictions, with the turbo-outlet hoses in a high-temp compound rated to 240°C (464°F) continuous. Custom carbon fiber ambient air guides seal to the body so cooling air cannot bypass the core. do88 measured 726 CFM at 0.175 bar (2.54 psi) pressure drop against 607 CFM for the OE setup, a 19 percent gain, and a 17°C (30.6°F) lower inlet air temperature over five consecutive full-throttle runs in a Stage 1 tuned 991. Each intercooler weighs 8.5 kg (18.74 lb). This version ships with the hose set for the OEM Y-pipe.
Specifications
| Type | Upgrade intercooler kit (do88 MERA) |
| Material | Aluminum core and cast aluminum end tanks |
| Inlet/Outlet | 70 mm (2 3/4 in) machined connections |
| Piping Compatibility | OEM Y-pipe |
| Airflow | 726 CFM at 0.175 bar (2.54 psi) pressure drop, 19% over OE |
| Charge Air Temperature | 40°C (104°F) vs 57°C (134.6°F) OE, 17°C lower |
| Weight | 8.5 kg (18.74 lb) per intercooler |
| Hose Material | Silicone, turbo-outlet hoses rated to 240°C (464°F) continuous |
| Included | Two intercoolers, carbon fiber ambient air guides, silicone hoses, clamps and installation hardware |
| Quantity | 1 kit (2 intercoolers) |
| Part Number | ICM-270-OEM |
| OEM Replacement | 99111063972, 99111063973, 99111064072, 99111064073 |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2013-2019 | Porsche | 911 (991) | Turbo |
| 2013-2019 | Porsche | 911 (991) | Turbo S |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
