Im going with extreme 2500 just in case that header and my thigh meet, it may save a little meat, the off road i have now its 2000 and you can touch it or grab but not hold, im hoping extreme is even better at holding in heat, a downside for me is its like a 60 grit paper so rags grab it but a brush works well and that stuff is good, they guarantee the extreme, like if it dont hold they will do it over for free. im going satin black extreme in and out.