After 13 years of squeezing into my Koings it was time to widen them. I looked at STS and Vintage seats but it turned out to be cheaper to modify my seats. I won't be running the backpad so I opened them up 2 1/2 ".
Here's the original seat.
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here's the original frame
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The frame after widening
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I decided on perforated synthetic suede for the centers. There is orange suede underneath that shows thru. The car is going to be Tangerine ( Brumos clone). So I wanted a little color but something that looked vintage as well. Here's the result.
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They are really comfortable now. It's snug without crushing you. Can't wait to give them a try. Guess I'd better get the car back together.