Photo - Primary

do88 High-Flow Plenum for 997.1 Throttle Body - Porsche 911 Turbo / GT2 (996) 2001-2005

do88 SKU: DOBTR-370
Price
Only 1 Left – Order Soon
Shipping calculated at checkout.

do88 replaces the T-shaped OEM 996 Turbo plenum with a Y-shaped cast aluminum plenum, so charge air splits toward both intake manifolds without the abrupt change of direction the factory casting forces. It is built to run with the Porsche 997.1 Turbo throttle body, whose 74mm bore takes over from the 68mm OEM 996 throttle body that becomes a restriction above 700 hp. The casting has CNC-machined hose connections and a smooth interior surface, and two silicone hoses are supplied so the plenum mates to either the do88 TR-360 Y-pipe or the OEM Y-pipe. do88 developed the internal Y geometry with CFD flow simulation and flow-bench testing of 3D-printed models on its SuperFlow SF-1020 bench.

Specifications

Type Y-design performance intake plenum
Material Cast aluminum with CNC-machined hose connections
Throttle Body Required Porsche 997.1 Turbo, 74mm bore (OEM 99760511500), not included
Included Two silicone hoses for the do88 TR-360 Y-pipe or the OEM Y-pipe, plus installation accessories
Tune Required Yes, engine management must be recalibrated after installation
Part Number TR-370
OEM Replacement 99611021571
Quantity 1

Documents: Installation Instructions (PDF)

This part fits:

Year Make Model Submodel
2001-2005 Porsche 911 (996) Turbo
2001-2005 Porsche 911 (996) Turbo S
2001-2005 Porsche 911 (996) X50
2001-2005 Porsche 911 (996) GT2

Shipping

  • Orders placed before 3 PM ET typically ship the same business day. Some items ship within 1 to 3 business days.
  • 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 cannot 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
You may also like
Recently viewed