BBK shorty headers are guaranteed to give the most ''bang-for-the-buck''! Bolt-on horsepower and eliminate restrictive factory manifolds with BBK's shorty headers. Unequal and equal-length headers provide optimal flow for all performance levels. BBK shorty headers are fully mandrel-bent, heavy-gauge tubing is made for longevity and performance. Laser-cut flanges offer a leak-free fit. BBK Mustang Shorty Headers are Made in the U.S.A.