WeatherTech 08+ Pontiac G8 Front FloorLiner - Black 2023-nissan-leaf-esi6573878 A standard cylindrical pipe restricts

A standard cylindrical pipe restricts airflow

the Y-Pipe was of critical concern and to get the flow balanced just right and for repeatability

BORLA Cat-Back and Axle-Back exhaust systems feature patented straight-through and multi-core technology designed to unleash hidden horsepower

The Mishimoto 2011-2023 Dodge Charger/Challenger

it's also what leaves it open to carbon buildup and detonation caused by blow-by

WeatherTech 08+ Pontiac G8 Front FloorLiner - Black 2023-nissan-leaf-esi6573878 A standard cylindrical pipe restrictsThe WeatherTech FloorLiner DigitalFit accurately and completely lines the interior carpet giving "absolute interior protection". Digital laser measurements of interior surfaces offer a consistently perfect fit. A patent pending HighDensity TriExtruded (HDTE) material allows for a rigid core for strength while offering surface friction to the carpet, as well as tactile feel to the surface. Advanced surfacing creates channels that carry fluids and