Which Quick Shifter ?

[20vWill]

Ian,

Orders from the US will normally take about 6-8 weeks by economy shipping, though you can get express mail very quickly but very, very expensive.

De-cat pipe - Simple, just find a custom exhaust place eg Longlife, Powerflow etc and take the car there and they'll make you up (and fit) one to suit your manifold/system from stainless steel. Should be very cheap.

Whatever dampers you've got makes no difference. If you have a lowered ride height/cut-and-shut strut case, you need to get an RCA of similar magnitude, ie for a -40mm ride height, a 40mm RCA is ideal. I run a BV NCRCA which is 40mm high in combination with a 40mm cut strut case. It's pretty much perfect.