diff --git a/src/xenia/cpu/backend/x64/x64_emitter.cc b/src/xenia/cpu/backend/x64/x64_emitter.cc
index 84a330d9b..d5592a401 100644
--- a/src/xenia/cpu/backend/x64/x64_emitter.cc
+++ b/src/xenia/cpu/backend/x64/x64_emitter.cc
@@ -58,6 +58,13 @@ DEFINE_uint32(audit_jit_prolog_mem_dump, 0,
               "and its vtable[0] (first virtual method = bctrl target at "
               "sub_822F1AA8+0x90). Zero (default) disables.",
               "Auditing");
+DEFINE_uint32(audit_jit_prolog_r3_bytes, 0x40,
+              "Audit-052 — number of bytes to dump from host(r3) on every "
+              "audit_jit_prolog_pc fire (capped at 256, 16-byte aligned). "
+              "Default 64 (existing behaviour). Set to 80 to capture the "
+              "audit-051 stack-local struct at sub_82452DC0's r31+96 "
+              "(probe sub_8245B000 entry where r3 IS the struct ptr).",
+              "Auditing");
 DEFINE_bool(ignore_undefined_externs, true,
             "Don't exit when an undefined extern is called.", "CPU");
 DEFINE_bool(emit_source_annotations, false,
@@ -491,11 +498,16 @@ uint64_t AuditLogJitPrologArgs(void* raw_context, uint64_t /*unused*/) {
       "r6={:08X} r7={:08X} r8={:08X} r9={:08X} r10={:08X} lr={:08X}",
       pc, tid, r3, r4, r5, r6, r7, r8, r9, r10, lr);
 
-  // Dump 64 bytes at host(r3) if r3 looks like a plausible guest VA.
+  // Dump N bytes at host(r3) if r3 looks like a plausible guest VA.
+  // N comes from cvar `audit_jit_prolog_r3_bytes` (default 64 = existing
+  // behaviour). Round up to a 16-byte multiple; cap at 256.
+  uint32_t r3_dump_bytes = static_cast<uint32_t>(cvars::audit_jit_prolog_r3_bytes);
+  if (r3_dump_bytes > 256) r3_dump_bytes = 256;
+  r3_dump_bytes = (r3_dump_bytes + 15) & ~15u;
   if (r3 >= 0x10000 && r3 < 0xE0000000) {
     uint8_t* host = ctx->TranslateVirtual(r3);
     if (host) {
-      for (uint32_t off = 0; off < 0x40; off += 16) {
+      for (uint32_t off = 0; off < r3_dump_bytes; off += 16) {
         uint32_t d0 = xe::load_and_swap<uint32_t>(host + off + 0);
         uint32_t d1 = xe::load_and_swap<uint32_t>(host + off + 4);
         uint32_t d2 = xe::load_and_swap<uint32_t>(host + off + 8);