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Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://design91.uk/images/schemaLogo.png https://design91.uk/images/schemaLogo.png +443456003478 https://design91.uk Facebook Instagram

Inter Coolers

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ICM-200-996
Product Information
Product Information
Performance intercoolers & pressure hoses kit.

doeighteight

To Fit:
Porsche 911 (996 Turbo), GT2 manual and auto 1999 to 2005

Significant advantages with do88's Porsche Performance Intercoolers & Silicone Hoses:

• Equivalent OEM numbers, 997.110.639.00, 997.110.640.00 (ref only)

• Core Volume: 6825 cm³ (4821 cm³), do88 41% larger!
• Lower post Intercooler Air Temperature at same conditions: OEM 50°C (122°F), do88 34°C (93°F)
• See enlarged images for test data results!

These Intercoolers are constructed to deliver the best cooling efficiency during tough conditions. Exclusively manufactured in aluminium with continuous welds, they guarantees reliability and endurance when you really need it. The increased core volume improves cooling efficiency and lowers the intake air temperature. Do88 have undergone thorough testing under severe and continuous conditions to ensure the absolute best performance! These Intercoolers are immensely optimized to allow the maximum core size in the given space without compromising on easy drop-in-fitment. This is the undoubted choice for the inspired enthusiast or the race car driver demanding reliability at the limit.

This package is supplied with everything you need for fitment, including Silicone Hoses, Screws, Brackets and Clamps.

The Boost Pressure Hoses included in this Kit are Silicone reinforced 4 ply polyester fabric for optimum airflow, performance and reliability!

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

ICM-200-996
99711063900
99711064000

The product you are viewing cross references to these numbers
DISPLAYING 1 to 1 (of 1 products)
About Inter Coolers

Porsche Inter Coolers

At Design911, we supply a wide range of inter coolers for Porsche models, helping you maintain, personalise and enjoy your car.

Why do Porsche Inter Coolers matter?

Inter Coolers affect how efficiently the engine in your Porsche runs, especially on turbocharged models. Over time they can suffer from leaks, corrosion and reduced efficiency, or simply no longer be suitable once you start tuning the engine. Replacing tired or undersized intercoolers helps your Porsche stay reliable, consistent and enjoyable to drive, particularly under heavy load.

  • Keep your Porsche looking smart rather than tired or neglected
  • Help protect the surrounding area from dirt and corrosion where relevant
  • Reduce minor niggles such as looseness, rattles or mismatched parts
  • Support long-term enjoyment, pride of ownership and potential resale value

Common options & kits

Individual replacement parts 

Specific items to address a particular area or issue without changing everything at once.

  • Ideal for targeted repairs
  • Lets you replace only what is needed
  • Helps keep initial costs under control

Matched sets or pairs 

Components supplied together so both sides or related items are renewed at the same time.

  • Consistent feel and performance
  • Helps avoid uneven wear or behaviour
  • A sensible choice for routine maintenance

Complete kits 

Grouped parts designed to refresh a whole system or area in one go, useful for upgrades and restorations.

  • Everything specified in a single package
  • Saves time compared with sourcing parts individually
  • Ideal when upgrading or restoring your Porsche

Brands & quality options

At Design911, we stock genuine Porsche parts where available, plus OEM-equivalent and carefully selected aftermarket brands. This lets you choose between keeping things original, adding subtle upgrades, or managing budgets on everyday maintenance.

Agency Power 

Agency Power produces a range of functional racing and performance products, including parts for Porsche models. Components are developed through track use and product testing to help ensure fitment and consistency.

Alpha 

Alpha Performance, part of AMS, engineers intercooler systems and related components with a focus on efficient cooling and durability. Their Porsche products are developed using computer-aided design and motorsport experience to optimise fitment and airflow.

BBi Autosport 

BBi Autosport is a Porsche-focused motorsport and tuning company with decades of combined racing experience. Their performance parts are developed from track programmes and professional racing, with attention to fit, function and workshop use.

CSF 

CSF designs and manufactures high‑performance Porsche cooling products for motorsport and enthusiast use. Their intercoolers and radiators focus on efficient heat rejection, robust construction and reliable fitment.

Denso 

Always check the exact part number and fitment data when choosing Denso components to ensure the correct match for your specific Porsche model and engine.

When should you review or replace your Porsche inter coolers?

Checking inter coolers regularly helps you spot wear, damage or age-related deterioration before it affects comfort, refinement or leads to more expensive repairs later on.

  • Existing parts are worn, cracked, scuffed, faded, corroded or missing
  • You notice looseness, vibration or an untidy appearance around the area they sit in
  • You have had related work carried out and want everything to look and feel consistent
  • You want the car to feel smarter and better cared for in daily use or before resale

If any of these apply, it is a good time to review your inter coolers and replace anything that is past its best, so your Porsche stays dependable and enjoyable to drive.

Explore Porsche inter coolers with Design911

Browse inter coolers for Porsche at Design911 — from individual parts to complete kits — and find options to suit everyday maintenance, upgrades and full projects.

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