Index: core/kernel/application.php
===================================================================
--- core/kernel/application.php	(revision 13134)
+++ core/kernel/application.php	(working copy)
@@ -1927,6 +1927,15 @@
 		if (array_key_exists('js_redirect', $params)) {
 			unset($params['js_redirect']);
 		}
+		
+		// allows to send custom responce code along with redirect header
+		if (array_key_exists('response_code', $params)) {
+			$response_code = (int)$params['response_code'];
+			unset($params['response_code']);
+		}
+		else {
+			$responce_code = 302; // Found
+		}
 
 		if (!array_key_exists('pass', $params)) {
 			$params['pass'] = 'all';
@@ -1967,7 +1976,7 @@
 					// no output before -> redirect using HTTP header
 
 //					header('HTTP/1.1 302 Found');
-					header("$location");
+					header("$location", true, $response_code);
 				}
 			}
 		}
Index: core/kernel/utility/http_query.php
===================================================================
--- core/kernel/utility/http_query.php	(revision 13134)
+++ core/kernel/utility/http_query.php	(working copy)
@@ -253,6 +253,13 @@
 			$this->Application->VerifyLanguageId();
 			$this->Application->VerifyThemeId();
 		}
+		
+		// redirect user to the same mod-rewrite page with 301 header
+		if ($this->Application->RewriteURLs() && !$this->Get('_mod_rw_url_')) {			
+			$url_params = $this->getRedirectParams();	
+			$url_params['response_code'] = 301; // Moved Permanently
+			$this->Application->Redirect('', $url_params);
+		}
 	}
 
 	function convertFiles()