The instructions helped a lot! Struggled with the part where i had to use the 10mm vacuum tube, wish there was some sort of adapter for it since i have the 07 Mazda, would make installation even easier, spent a good 20 minutes trying to figure that out. Other than that, fits really well, the welding and the materials look to be top notch and you can make it into both a ram and a cold air intake which is awesome. Fast Shipping, great price and exactly as described!