Not Available to Ship to California
Give your truck the real “Big Rig” look with these straight-back chromed diesel exhaust mirror polished Grand Rock exhaust stack tips. The 8-inch Aussie Cut gives your diesel stacks a clean streamlined look. Their universal fit allows for use with custom designed stack systems too.
These giant Grand Rock exhaust stacks will improve your truck’s performance with increased horsepower, torque and fuel economy. Turn heads and make people sit up and take notice. Smoke will never be the same!
These tips reduce to a 5 inch Outside Diameter inlet, and will fit any existing 5 inch, 6 inch, 7 inch or 8 inch Grand Rock exhaust stack kits. If you have previously ordered a Grand Rock stack kit with 4" stack tips, these stack tips will not fit your stack kit.
Please Note: If you already have an in-bed stack kit for 5, 6, or 7 inch stacks, you may need to relocate the y-pipe prior to installing the 8" stacks. Due to the stacks being 3 inches wider than a 5" stack, it will cause the stacks to sit crooked in the y-pipe if you do not compensate for the larger diameter.