Dynomax 54354 Exhaust Intermediate Pipe Dynomax Performance Exhaust, a leading performance exhaust brand built on over 20 years of market leadership. Each and every Dynomax product is backed by engineers who what you want and expect out of a performance exhaust product. Mandrel bends improve flow capacity over traditional bends Combine state-of-the-art engineering with quality material to provide exceptional strength and durability Pipe diameters are increased from OEM sizes to improve flow and increase power. Dynomax Exhaust Systems are manufactured with precision benders, & then fixture checked, insuring every part is a perfect fit, providing quick and easy installation.