A Y-design intake plenum that replaces the restrictive T-shaped original, cast as a single piece with a smooth internal surface and CNC machined connections. do88 measured an 18 percent flow improvement over the standard plenum when used with the OEM 74mm throttle body. At 0.80 kg it is heavier than the 0.28 kg plastic original but lighter than the 1.19 kg competitor casting. This version ships with the CNC machined adaptor plate needed to run the factory 74mm throttle body; the throttle body itself is not included.
Specifications
| Type | Cast aluminium Y-design intake plenum |
| Throttle Body | OEM 74mm, CNC machined adaptor plate included |
| Airflow | 18 percent higher than standard with the OEM 74mm throttle body |
| Weight | 0.80 kg (1.76 lb) |
| Not Included | Throttle body |
| OEM Replacement | 99711021570, 99711017771 |
| Quantity | 1 plenum with installation hardware |
| Part Number | TR-150-OEM |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2007-2009 | Porsche | 911 (997.1) | Turbo |
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
