SKU: FLO817413
UPC: 700042024889
MPN: 817413
The 59-64 Impala Crossmember Back Exhaust Kit from Flowmaster is engineered for classic car enthusiasts and restoration specialists seeking authentic bolt-on performance and refined sound character for their first-generation full-size Chevrolet. This crossmember-back configuration replaces the factory exhaust system from the transmission crossmember rearward, making it an ideal entry point for owners wanting to upgrade exhaust flow without major engine bay modifications. Whether you're building a show car, a weekend cruiser, or a street-driven classic, this Flowmaster system delivers the blend of vintage aesthetics and modern exhaust engineering that serious Impala owners demand.
Flowmaster's proven acoustic and flow design reduces exhaust restriction compared to corroded original systems, improving throttle response and mid-range power delivery on classic 283, 327, and 409 Chevy big-blocks. The crossmember-back architecture preserves factory mounting points and header-to-manifold compatibility, eliminating the need for expensive custom fabrication or engine compartment surgery. Constructed from mandrel-bent tubing and finished components, the kit resists corrosion better than original steel while maintaining period-correct visual authenticity—critical for authenticity-focused restorations and concours judging. The 32-pound assembly ships ready to bolt in with standard fasteners, and the compact packaging (58 inches in length) ensures compatibility with stock and mildly modified frame rails.
This exhaust kit is purpose-built for 1959–1964 Chevrolet Impala models and will not fit earlier or later generations without significant adaptation. Installation requires basic hand tools and 2–4 hours of shop time; most DIY mechanics and professional technicians can complete fitment without special equipment. The system maintains compliance with vintage car shows and street-legal standards in most jurisdictions, making it a smart choice for owners who drive their classics regularly rather than storing them year-round. Verify your Impala's original engine displacement and manifold configuration before ordering, as some performance variants may require minor exhaust port adapter evaluation.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.