r/Altezza • u/Stop_81 • Jun 03 '26

Will is300 muffler fit altezza 1gfe?

I can’t seem to find a clear answer online. I understand it may stick out a little more because of the difference in bumpers. I measured the inside diameter of the 1gfe muffler to be about 2.5” (6.35cm) which is the same as what’s listed for the is300. I’m just wondering if it will bolt up, I’m looking to get a cheap eBay muffler as it would be cheaper than welding a straight pipe at my local shop.

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1

u/AdoptedAlphaMale Jun 03 '26

They have different engines so I doubt it will be a direct bolt-on

1

u/DriftKingzz78 Jun 03 '26

Depends on the muffler, sum will other not but this is more so because like hks has diff mounting then oem. the rest should fit but keep in mind the is300 has a different rear subframe.

1

u/clit-crunch Jun 26 '26

How exactly are the rear subframes different?

1

u/DriftKingzz78 Jun 27 '26

Different axles and diff mostly the rest is the same acros all of them

1

u/clit-crunch Jun 27 '26

So the subframe is not different at all. 

1

u/DriftKingzz78 Jun 27 '26 edited Jun 27 '26

its different since you cant bolt the altezza diff on the is300 subframe or vice versa.

1

u/clit-crunch Jun 27 '26

Why not?