Who tells you these things ?
There is no cat in the down pipe, unless one has sneaked in to get warm or saw a mouse in your engine bay.
Get some stainless steel bolts for your one and only de-cat pipe and come MOT time changing it over is easy
Lankys car is a facelift one, so perhaps it does have two cats? Like the S14 and S14a 200SX the older S14 only has one in the exhaust whereas the S14a has another in the downpipe, get underneath and have a look mate...
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