i talked to the guy i have make them. they can do it in full stainless
either polished or ceramic coated ( same price)
for 150$ more
ends up being rougly 750$ shipped in the UK
min order of 10, turn around 4-5 weeks
depends what type of power/motor
the tri-Y i'd highly recommend for bigger 1.8+ 200+ whp vehicles
the T*DA header for many circut racers and under 1.8 liter motors