mines the louvered type and the louvers facing the engine (quieter mode) and its positioned just before the axle. There is apx 7 to 8 foot of straightish pipe before it and around 5 to 6 foot of curved pipe (over the axle) to the rear of it. I hope that helps in some way.
got a split manifold on mine with 2x20 inch cherries pre axle. sounds great around 2500- 3000 rpm. possibly a tad loud