In the market for new stacks for your International 8600 TranStar? 4 State Trucks has a variety to choose from including 5" x 18" chrome turnout pipes, bull hauler top stacks, 8" x 114" west coast turnout stacks, 7" x 48" miter top stacks and 8" x 114" flat top stacks. We also carry 6" x 114" flat top stacks with a 6" outside diameter, made of high quality chrome, sold individually and backed by a 1 year warranty from the date of purchase.