For those who have either the Tanabe Sustec front lower tie-bar, do you have clearance issue with the flange of catalytic converter? If you have aftermarket header (specially the 4-1 header), does this bar fit at all? I just installed the bar, and it's touching the flange of converter (I have stock header). When I start up the car, the flange is hitting the bar making some rattling noise. I'm think about shaving off some material from the flange. However, I'm planning on getting a 4-1 header in the future, and it doesn't seem like it's gonna fit. So I'm wondering if anyone has this front lower tie-bar and a 4-1 header (or maybe 4-2-1 header), and has problem fitting the front bar. TIA.