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Originally Posted by Ao1
I'm wondering if it is really necessary to strip our the roof liner. (?) Maybe its easier to get the spot welds on the cross brace, but I reckon I could get them off without internal access. Is there any reason you know of as to why the roof liner needs to come off?
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You probably can, but to take out the spot welds will involve a fair bit of heat, which will inturn transfer and possibly burn the headliner. If you planning on cutting the metal roof, to get to the cross brace, you still need to be very careful not to damage the liner.
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Originally Posted by RajB
I agree wholeheartedly it was a brave move. I was very unsure tbh BUT after Tin did the same with his 135i and a new roof from Geoff Steel Racing I figured sod it. In all honesty I bought the first roof before I bought the car LOL.
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Hahah yep, its a scarey thought, but definitely worth it saving weight, where you can. mine came in at 40kg lighter than a stock 1M back in march, that's before the recent additions
.. hoping for under 1400kgs and less than a M3 GTS