The two repairs every M96/M97 Porsche owner worries about — the IMS bearing and the coolant pipes — handled by independent specialists who actually know these engines. Inspection, IMS retrofit and coolant-pipe repair, done right and warrantied, without dealer prices.

If you own — or are shopping for — a Porsche with the M96 or M97 engine (the 1997–2008 911 (996/997), Boxster and Cayman), two repairs dominate the conversation. The first is the IMS bearing: the intermediate-shaft bearing can fail with age and low use, and in a worst case it can take the engine with it. The good news is that it's a known, solvable problem — an IMS retrofit replaces the original sealed bearing with an upgraded, serviceable unit and effectively ends the worry.
The second is coolant pipes and fittings. On the V8 Porsches (Cayenne and Panamera), the factory glued plastic coolant pipes in the engine valley that crack and leak with heat and age; the proper fix is to re-pipe them with anodized aluminum. On the water-cooled flat-six, plastic coolant fittings and the Porsche coolant pipe joints get brittle and weep. We inspect, pressure-test and repair both — and we'll always tell you honestly what your specific car needs.
The high-stakes Porsche repairs, done by people who specialize in them.
We assess IMS condition and oil analysis so you know where your bearing stands before deciding.
Replace the original bearing with an upgraded serviceable unit — the permanent peace-of-mind fix.
Cracked plastic coolant pipes re-piped in aluminum; brittle fittings and joints renewed.
RMS leaks and clutch/flywheel done while the transmission is out — the smart time to do it.
Buying a 996/997 or Boxster/Cayman? A documented inspection that checks IMS, bore scoring and leaks.
We borescope the cylinders to rule out the other M96/M97 concern before you commit to a car.
These flat-sixes are wonderful to drive and genuinely durable when maintained — but a few known issues define ownership. Understanding them (and addressing the IMS proactively) turns a nervous purchase into a confident one.
For full Porsche service and model coverage, see our Porsche repair page.
From air-cooled classics to modern turbos — the full Porsche lineup, expertly served.
"Did the IMS retrofit on my 997 along with the clutch and RMS while they were in there. Clear explanation, fair price, and now I drive it without the nagging worry. These guys know M97 engines."
"Coolant pipes on my Cayenne were the original plastic. They re-piped it in aluminum so it's a one-and-done fix. No more ticking time bomb in the valley."
"Had them do a pre-purchase inspection on a Boxster — they checked the IMS and bore scoring and talked me through it honestly. Saved me from a bad buy."
Tell us your model and year and we'll quote an IMS inspection, retrofit or coolant-pipe repair the same business day — and give you a straight answer on what it actually needs.