The tap/knock has gone, but as mentioned the injectors are pretty loud, also, since fitting the vernier exhaust pulley it sounds 'poppier' at lower rpm, I'm guessing this is normal as the exhaust timing had been changed, it runs sweet higher up the range but I just wanted to check. As it said before the EML isn't on and it has plenty of oil, so I'm guessing it's either because of the vernier, or just age related?
Thanks