I just put those same ones on my car the back one is kind of a pain to put in but its not bad the clamps they come with kind of suck i had to put some washers before the bolts because it was bending and the bolts were sinking into the clamp but they work good and sound good too. Oh ya you should put the back one on first, i made the mistake of putting the front one on first and when i rocked the motor forward it pushed my fans into my radiator and put two good sized holes in it lol i obviously wasnt thinking there.