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The DynoMax Truck Staxx kit enables light-truck owners to convert their existing exhaust outlet using two upright stacks located behind the passenger compartment. Available with either a 4" straight or angled outlet. Each DynoMax Truck Staxx kit includes stacks reducers, elbows and hardware for a complete installation. A 4" splitter tee is available separately to adapt dual stacks to single exhaust applications. Rain caps are available separately for straight stacks.