I believe the reason for using the non afterglow relay was the price.

Non after glow is $150-200 range and the afterglow relay was running $300 plus.

That is old information from memory. I could be wrong.

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87' 300DT (Grey w/ red leather)
87' 300TDT (silver w/ palamino tex) SOLD

2012 VW JSW TDI (on tdiclub.com all the time "btcost")