Air-cooled Porsches are hard on Porsche spark plug wires. Higher than average underhood temperatures tend to cook Porsche spark plug wires, leading to cracks and glazing in the silicone insulation. The result? Your Porsche spark plug wires leak electricity through the degraded insulation, and you end up with misfiring and poor performance. We can think of a lot of reasons you bought a Porsche, but poor performance probably isn't one of them, so change out your Porsche spark plug wires regularly. What if you drive a water-cooled Porsche? You're not out of the woods. Porsche spark plug wires deteriorate on all models--it's just accelerated on the air-cooled cars. So regardless of what kind of Porsche you drive, you'd do well to pick up a set of Porsche ignition wires from us. Even if your Porsche spark plug wires aren't worn out yet, they will be at some point. So it's a good idea to have an extra set of Porsche spark plug wires in your garage come tune-up time. With pure silicone insulation and boots, and low-resistance cores, our replacement Porsche spark plug wires meet all OE performance requirements. Don't settle for low-quality Porsche spark plug wires--buy only the best Porsche spark plug wires you can find, and buy them for less right here.