Hi I have a 2012 GTI with BSR stage 1 tune, which gives plenty more punch to an already nice setup. Exhaust is stock as is the intake and filter. I'm seeking advice on whether a catted 3inch downpipe would work nicely with stock catback exhaust and BSR stage 1 tune? I like the quietness of the stock catback. A little more grumble would be ok, but I'm a older guy who leans toward a more refined, rather than a rorty sound. I'd appreciate input from those with more experience.
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