When Porsche launched the 987-generation Boxster in 2004 and followed with the Cayman in 2005, the company nailed what many enthusiasts consider the perfect balance: compact size, naturally aspirated flat-six engines, and handling that makes even everyday driving feel special.

Fast-forward to today and the 987 has become one of the most appealing ways into Porsche ownership. Prices are still realistic, parts are widely available, and with the right knowledge you can avoid the pitfalls that catch out less-informed buyers.

This 987 buyers guide will walk you through the model range, the mechanical issues worth knowing about, what to check before parting with your money, and how to keep ownership costs sensible with help from Design911.

A Quick Look at the Model Range

The 987 is effectively the second generation of Porsche’s entry-level sports cars, replacing the 986 Boxster.

• 987.1 (2004–2008)
  Engines range from a 2.7-litre flat-six to the 3.4-litre “S”. These cars still carry the infamous IMS bearing (in earlier years) and the risk of bore scoring, especially on the 3.4. Gearbox options include a five- or six-speed manual, or the Tiptronic automatic.

• 987.2 (2009–2012)
  The facelift brought more than just new bumpers and lights. Porsche introduced Direct Fuel Injection (DFI)engines — a 2.9 in the base cars and a 3.4 in the S — along with the PDK dual-clutch gearbox. The IMS bearing was gone, reliability improved, and fuel economy got a bump too.

Both Boxster and Cayman share most mechanical parts. The Cayman’s stiffer body gives it the edge for track driving, while the Boxster offers the open-air thrill at a slightly lower entry cost.

Engines and the Known Trouble Spots

A healthy 987 engine is a joy — free-revving, characterful, and robust if cared for. But there are a few areas that deserve attention:

• IMS Bearing (Gen 1 cars only): Not every car suffers, but failures can be catastrophic. Many examples will have had the bearing upgraded already. If not, it’s worth factoring in. You’ll find IMS bearing upgrade kits at Design911.

• Rear Main Seal (RMS): Oil leaks are fairly common. If the clutch needs doing, it’s smart to tackle both at once. A new clutch kit isn’t ruinously expensive and can transform the driving feel.

• Bore Scoring: The 3.4-litre engine is most at risk. Signs include excessive oil consumption, sooty tailpipes, or a distinctive ticking noise. A borescope inspection is strongly recommended before buying.

• Cooling System: Radiators and water pumps can corrode or leak, particularly if leaves and road grime have built up in the side vents. Replacement radiators and water pumps are straightforward fixes.

• Gearboxes: The manuals are tough, though clutches wear with mileage. PDK, introduced on the Gen 2, is widely praised for reliability as long as fluid services are kept up to date.

Suspension, Brakes and Steering

These cars are now 15–20 years old, and suspension wear is common.

• Bushes and Arms: Expect to replace tired suspension arms and bushes if it hasn’t been done already. The good news is parts are easy to source — see 987 suspension parts.

• Brakes: No surprises here. Discs and pads are consumables and relatively cheap. If you plan track days, uprated performance brake kits are popular.

• Steering: It should feel sharp and direct. Any knocking or wandering usually means worn suspension rather than steering rack failure.

Body, Roof and Interior Checks

• Boxster Roof: Make sure the fabric is free of tears and the electric mechanism works smoothly. Blocked roof drains can flood the cabin and kill electronics. A new roof drive motor is cheaper than you’d think if needed.

• Panels and Paint: Look for poor panel alignment or overspray. Stone chips on the nose are common and not a big deal, but accident damage is.

• Interior Wear: Switchgear on early cars used a soft-touch coating that scratches easily. Replacement switch panels are available.

• Air Con: Condensers sit low in the nose and can rot out. If the air con doesn’t blow cold, budget for new ones.

What Ownership Costs Look Like

One of the big appeals of the 987 is that running costs, while not “cheap,” are manageable.

• Minor Service: Oil and filter change, plus checks. Roughly £500–£700 at a good independent.

• Major Service: Includes spark plugs, belts, fluids. Budget around £900–£1,200.

• Tyres: Stick with Porsche-approved N-rated tyres for best balance. Options are available via Design911 tyres.

DIY servicing is realistic for confident owners. Full 987 service kits are available if you prefer to turn spanners yourself.

Buying Checklist

Here’s a quick run-through when viewing a potential 987:

• Check for a complete service record.

• Look for evidence of IMS replacement on early cars.

• Listen for knocking from suspension and watch for uneven tyre wear.

• Make sure the roof drains are clear (Boxster).

• Inspect the cooling system for leaks.

• Insist on a borescope if considering a 3.4-litre.

• Always, always get a pre-purchase inspection (PPI) from a Porsche specialist.

Which 987 to Go For?

• On a Budget: Early Boxster 2.7. Cheap entry point, fun to drive, though be aware of IMS.

• Balanced Choice: Cayman 2.9 Gen 2. Reliable, affordable, and still quick enough for most.

• For Enthusiasts: Cayman S or Boxster S (Gen 2) — the perfect mix of pace and usability.

• For Collectors: Boxster Spyder or Cayman R. Lightweight, rare, and already appreciating.

FAQs: Porsche 987 Buyers Guide

Is the Porsche 987 a good investment?
Yes. Prices have levelled off and special editions are already creeping up in value.

What problems do Porsche 987s have?
The usual suspects are IMS bearing failure, bore scoring, rear main seal leaks, worn suspension, and roof drain issues.

Boxster or Cayman – which is better?
It comes down to preference. The Boxster is cheaper and gives you that open-top thrill, while the Cayman is more rigid and arguably the sharper driver’s car.

Which year is best to buy?
2009 onwards (Gen 2). No IMS, DFI engines, and PDK gearbox available.

How much does it cost to run a 987?
Expect £1,000 a year for servicing if you’re using specialists, more if big-ticket items crop up. Parts are plentiful from Design911.

Do I really need a PPI?
Yes. It’s the cheapest insurance you’ll buy when looking at a 987.

Final Thoughts

The Porsche 987 Boxster and Cayman strike a sweet spot that’s hard to ignore. They’re modern enough to use daily, yet still offer that raw, mechanical feel modern cars often lack. Buy carefully, armed with the advice in this 987 buyers guide, and you’ll have one of the best sports cars of its era.

And when the time comes to maintain or upgrade, remember that Design911 stocks everything from IMS kits to suspension arms, service items, and performance upgrades. With the right car — and the right parts — the 987 can deliver years of reliable Porsche enjoyment.