manifold or 18t

Took my car (toledo 1.9tdi 110) back to P-Torque today. Since last October when it made 143bhp and 256lbs/ft, I've put on a free-flowing back box, decat, PD150 Manifold with replacement EGR pipe and a 1.8T metal pancake pipe from turbo to intercooler. Did I get any gains? Nope. Big fat...