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IS - 1st Gen (2001-2005) Discussion about the IS models up to the 2005 model

Durability?

Old Aug 25, 2023 | 12:50 PM
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BodyPillow
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From: wrthrtwh
Question Durability?

Thinking about buying an is300. Going to build it for 600rwhp, wanna know if the front/rear subframe need reinforcing, or driveshaft/axles need replacing.
Are there any W55/58 rebuild kits out there or could I bring it into a transmission orientented shop and have them strengthen it for me (and how much that might cost).
In that case I'm thinking of swapping a T56 tranny into it and don't if I will need to cut up the trans tunnel to make it fit.
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Old Aug 26, 2023 | 04:06 AM
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W55/58 are garbage.
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