Banks Power 53681 Exhaust Extension Kit Stainless Steel GM 8.1L P-Series Motorhome 190 inch W/B Wheelbase Banks Power Fish Tuning What this all means is

What this all means is that in the real world

Adjustable Fuel Pressure 1-20 PSI

It delivers load-hauling best gains of +100 hp and +235 lb-ft at the rear wheels

4-inch intake velocity stack which will support/cool 600hp-750hp

8L Class-A Motorhome

Banks Power 53681 Exhaust Extension Kit Stainless Steel GM 8.1L P-Series Motorhome 190 inch W/B Wheelbase Banks Power Fish Tuning What this all means isBanks Power Extension Kits are made from durable galvanized T 409 Stainless Steel. These kits come with necessary hardware for the applications listed in their description. Exhaust Extension Kit, Stainless Steel, for use with GM 8. 1L P Series Motorhome, 190 inch W B Wheelbase Key Features Extension kit, stainless Includes 4 inch Extension Pipe and all necessary hardware CARB E. O. Not Required