Covering diesel pickup applications from Ford, GM, and Dodge, GRAND ROCK makes high-performance single stock-exit systems, as well as the finest single and dual in-bed stack kits on the market.
Application years range from 1994-2006 for the single under vehicle stock-exit kits, and can fit all years for the stack kits. GRAND ROCK does not make replacement systems for 2007 and newer DPF-equipped vehicles.
All GRAND ROCK kits are made of corrosion-resistant 16-ga. US-made aluminized steel mandrel-bent tubing. Our single under vehicle stock-exit kits include a 304SS exhaust tip, and heavy-duty welded rod hangers and high-quality clamps.