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husker boxster · 01-07-2015, 04:06 AM

The crossover to the improved IMS is a bit of a secret but conjecture is sometime around Mar 2005. Check the build date on the door. If it has a 2004 build date, you have the replaceable IMS. If you have an Apr or definitely May or later build date, you've got the non-replaceable IMS.

The 05 is kind of a hybrid with the 3.2. Not sure what could be used from the 986 and what can't. I went from an 01S to an 08S LE and the improvement in overall quality was massive.

01-07-2015, 04:06 AM	#3
husker boxster Registered User Join Date: Sep 2006 Location: Omaha Posts: 2,866	The crossover to the improved IMS is a bit of a secret but conjecture is sometime around Mar 2005. Check the build date on the door. If it has a 2004 build date, you have the replaceable IMS. If you have an Apr or definitely May or later build date, you've got the non-replaceable IMS. The 05 is kind of a hybrid with the 3.2. Not sure what could be used from the 986 and what can't. I went from an 01S to an 08S LE and the improvement in overall quality was massive. __________________ GPRPCA Chief Driving Instructor 2008 Boxster S Limited Edition #005 2008 Cayman S Sport - Signal Green 1989 928 S4 5 spd - black 1987 928 S4 - Granite Green Metallic (Felsengrun)