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The mkiv Supra Owners Club

MIJ exhausts - modifications unseen


rider

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Just to warn people about some potential issues with bespoke exhaust system suppliers.

 

I had the stock exhaust replaced by a bespoke exhaust supplied and fitted by MIJ exhausts 10 years ago. I've removed their exhaust and in the process of reinstating things back to OE. MIJ butchered the exhaust hanger, cutting out the hooks and leaving the redundant base bolted in place. They cut away the heat shield leaving scraps under the bolts remaining and then welder their hanger above where the heat shield once covered. They also cut away the cat pipe protruding coupling locator ring for the crushable gasket and used a flat gasket to their own exhaust joint.

 

None of it is irreparable but none of the changes MIJ made were discussed with me when their exhaust was fitted. The area above where the heat shield would and should have sat has weathered much more than the other side of the car which is protected by the tank down pipe shield. Presumably, Toyota placed a heat shield there for a reason.

 

People should check what changes any bespoke exhaust fitter is intending to make beforehand because most will be like me and not get around to looking at the fittings unless the cars up on a ramp. Maybe MIJ just figure their exhausts will outlast the car and even after 10 years, it was still in great shape.

Edited by rider (see edit history)
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