Im in too minds weather to start messing about with mine lol. I shouldn’t really as I’m hoping to get my Sierra engine back this year. Mine has a so called 280 map on it and it dose go really well for what it is. It holds its boost off the scale lol. I’ve fitted a cat back mongoose system large intercooler symposer delete and an RS vac pipe. Also fully polly bushes it. Has 20mm rear and 15mm front wheel spacer too. I may fit a sport cat and lower springs next