hi, I had a fully decatted (pre-cat and Main cat) resonated Milltek system on my 197 when I got it. I think it was remapped as there was no flatspot and no engine warming light. I have now removed the mid-silencer a few months ago and that introduced the flatspot. I have noticed that there is a blow out in the manifold so am toying with the idea of putting on a toyosprts manifold instead. Would there be much change in sound? I know not to expect any performance gains.
Thanks guys
Thanks guys