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Does MKII Model Year Make A Big Difference?

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YOUR RESEARCHDoes MKII Model Year Make A Big Difference?

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Replace imsb

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The IMSB was changed to a larger bearing after MY2005 (the engine I now have in my 2004) and is non-serviceable unless you split the case.
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Does MKII Model Year Make A Big Difference?

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Leading evidence: 'Replace imsb' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace imsb' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Replace made

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Suggestion · Original poster
I've been told that in mid-2003 there was a change made that makes the late-2003 and all 2004s more difficult to work on than the 2002s and early 2003s.
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Does MKII Model Year Make A Big Difference?

Run slightly larger rims/tires

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Suggestion
You can also run slightly larger rims/tires on the front with little to no issues.
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Does MKII Model Year Make A Big Difference?

Use 8.5/9 front rims unless i want

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Suggestion
I cannot use the 8.5/9 front rims unless I want to deal with a ton of headaches.
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Does MKII Model Year Make A Big Difference?

Frequently discussed actions (4)

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Replace imsb

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Performed · outcome unconfirmed
The IMSB was changed to a larger bearing after MY2005 (the engine I now have in my 2004) and is non-serviceable unless you split the case.
Original post Read captured discussion
Does MKII Model Year Make A Big Difference?

Replace made

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Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

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Suggestion · Original poster
I've been told that in mid-2003 there was a change made that makes the late-2003 and all 2004s more difficult to work on than the 2002s and early 2003s.
Original post Read captured discussion
Does MKII Model Year Make A Big Difference?

Run slightly larger rims/tires

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

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Suggestion
You can also run slightly larger rims/tires on the front with little to no issues.
Original post Read captured discussion
Does MKII Model Year Make A Big Difference?

Use 8.5/9 front rims unless i want

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
I cannot use the 8.5/9 front rims unless I want to deal with a ton of headaches.
Original post Read captured discussion
Does MKII Model Year Make A Big Difference?

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5 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

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No difference in price as far as I know.
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Generation: 20261026T063944Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Recently lost my 98 Boxster to a bad head gasket and I'm looking to replace it with a 996. I'm most interested in the MKII engines and a 2002-2004 is in my price range. How much should I expect to spend on an IMS retrofit for a 2002-2004 996? Any difference in IMS price based on model year? I've been told that in mid-2003 there was a change made that makes the late-2003 and all 2004s more difficult to work on than the 2002s and early 2003s. Any truth to this?

POST 2Original post

No difference in price as far as I know. They did switch to a bearing that was not serviceable, but I don't think that was until 2004-05? Also, some cars have replacement engines that have the non serviceable bearing. You have lots of options that will affect the price from the classic, roller bearing, single to double, or solution. Spend some time reading the stickies, searching, and go the LN website. You will get it figured out.

POST 3Original post

MY 2002 to 2004 are essentially the same car. The IMSB was changed to a larger bearing after MY2005 (the engine I now have in my 2004) and is non-serviceable unless you split the case.

POST 4Original post

Quotes source post: 12554394

That's correct. Many early 997 cars have the smaller, serviceable bearing too. The 2002 cars utilize an analog stereo system with copper wires to connect the head unit, amp(s) and CD changer. 2003 and later cars utilize the MOST fiber optic ring. Other than that, they are essentially identical. There were a few minor options available on later cars that weren't available on earlier MK II cars; I believe the Sport Techno wheel is one example.

POST 5Original post

You can also run slightly larger rims/tires on the front with little to no issues. I have a mark1, she's an 01 C2. Stock 18 inch rims are 7.5 inches. I can go to 8 with the right tire and correct backspace. I cannot use the 8.5/9 front rims unless I want to deal with a ton of headaches. If you can get a mark2 then get it.

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