Threw these in a 96 f250 with the 5.8w unlocked power and performance. It runs like a dream on the highway and is my daily once again. OBS fords have a huge bottle neck with intakes and exhaust so these headers will change everything. They bolted right on no machining needed and everything came perfect in box with all the hardware. They are deff pricey but will blow away any cheap header that%X92s not coated or just not as high quality in the long run.
Great value for the performance
The perfect fit for my Challenger 5.7L 2016. The installation was complicated but the fitment was perfect. The sound of the car changed a lot at 4.5 to 5.5k rpms! Not so much at idle. The car now accelares way better! At the track when i shift to second gear the tires will spin like crazy! Which is awesome! I have not been able to take the car to the dyno!! But it feels more powerful!