From the KA24DE i have 2.5 inch headers from DC Sports 4-2-1 (s13)
and 2.5 inch BRM Exhaust (
1989-1994 Nissan 240sx (S13) Cat-back Exhaust System | BRM Exhaust) - Stainless Steel, 14" Resonator, HiFlow CAT, Magnaflow muffler with Dual tip
- this exhaust exits straight and has very good straight piping from the headers back.