diff --git a/twrp-functions.cpp b/twrp-functions.cpp
index b51024c..4a7b340 100644
--- a/twrp-functions.cpp
+++ b/twrp-functions.cpp
@@ -737,127 +737,6 @@
 	return 0;
 }
 
-int TWFunc::Check_su_Perms(void) {
-	struct stat st;
-	int ret = 0;
-
-	if (!PartitionManager.Mount_By_Path("/system", false))
-		return 0;
-
-	// Check to ensure that perms are 6755 for all 3 file locations
-	if (stat("/system/bin/su", &st) == 0) {
-		if ((st.st_mode & (S_ISUID | S_ISGID | S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH)) != (S_ISUID | S_ISGID | S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) || st.st_uid != 0 || st.st_gid != 0) {
-			ret = 1;
-		}
-	}
-	if (stat("/system/xbin/su", &st) == 0) {
-		if ((st.st_mode & (S_ISUID | S_ISGID | S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH)) != (S_ISUID | S_ISGID | S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) || st.st_uid != 0 || st.st_gid != 0) {
-			ret += 2;
-		}
-	}
-	if (stat("/system/bin/.ext/.su", &st) == 0) {
-		if ((st.st_mode & (S_ISUID | S_ISGID | S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH)) != (S_ISUID | S_ISGID | S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) || st.st_uid != 0 || st.st_gid != 0) {
-			ret += 4;
-		}
-	}
-	return ret;
-}
-
-bool TWFunc::Fix_su_Perms(void) {
-	if (!PartitionManager.Mount_By_Path("/system", true))
-		return false;
-
-	string propvalue = System_Property_Get("ro.build.version.sdk");
-	string su_perms = "6755";
-	if (!propvalue.empty()) {
-		int sdk_version = atoi(propvalue.c_str());
-		if (sdk_version >= 18)
-			su_perms = "0755";
-	}
-
-	string file = "/system/bin/su";
-	if (TWFunc::Path_Exists(file)) {
-		if (chown(file.c_str(), 0, 0) != 0) {
-			LOGERR("Failed to chown '%s'\n", file.c_str());
-			return false;
-		}
-		if (tw_chmod(file, su_perms) != 0) {
-			LOGERR("Failed to chmod '%s'\n", file.c_str());
-			return false;
-		}
-	}
-	file = "/system/xbin/su";
-	if (TWFunc::Path_Exists(file)) {
-		if (chown(file.c_str(), 0, 0) != 0) {
-			LOGERR("Failed to chown '%s'\n", file.c_str());
-			return false;
-		}
-		if (tw_chmod(file, su_perms) != 0) {
-			LOGERR("Failed to chmod '%s'\n", file.c_str());
-			return false;
-		}
-	}
-	file = "/system/xbin/daemonsu";
-	if (TWFunc::Path_Exists(file)) {
-		if (chown(file.c_str(), 0, 0) != 0) {
-			LOGERR("Failed to chown '%s'\n", file.c_str());
-			return false;
-		}
-		if (tw_chmod(file, "0755") != 0) {
-			LOGERR("Failed to chmod '%s'\n", file.c_str());
-			return false;
-		}
-	}
-	file = "/system/bin/.ext/.su";
-	if (TWFunc::Path_Exists(file)) {
-		if (chown(file.c_str(), 0, 0) != 0) {
-			LOGERR("Failed to chown '%s'\n", file.c_str());
-			return false;
-		}
-		if (tw_chmod(file, su_perms) != 0) {
-			LOGERR("Failed to chmod '%s'\n", file.c_str());
-			return false;
-		}
-	}
-	file = "/system/etc/install-recovery.sh";
-	if (TWFunc::Path_Exists(file)) {
-		if (chown(file.c_str(), 0, 0) != 0) {
-			LOGERR("Failed to chown '%s'\n", file.c_str());
-			return false;
-		}
-		if (tw_chmod(file, "0755") != 0) {
-			LOGERR("Failed to chmod '%s'\n", file.c_str());
-			return false;
-		}
-	}
-	file = "/system/etc/init.d/99SuperSUDaemon";
-	if (TWFunc::Path_Exists(file)) {
-		if (chown(file.c_str(), 0, 0) != 0) {
-			LOGERR("Failed to chown '%s'\n", file.c_str());
-			return false;
-		}
-		if (tw_chmod(file, "0755") != 0) {
-			LOGERR("Failed to chmod '%s'\n", file.c_str());
-			return false;
-		}
-	}
-	file = "/system/app/Superuser.apk";
-	if (TWFunc::Path_Exists(file)) {
-		if (chown(file.c_str(), 0, 0) != 0) {
-			LOGERR("Failed to chown '%s'\n", file.c_str());
-			return false;
-		}
-		if (tw_chmod(file, "0644") != 0) {
-			LOGERR("Failed to chmod '%s'\n", file.c_str());
-			return false;
-		}
-	}
-	sync();
-	if (!PartitionManager.UnMount_By_Path("/system", true))
-		return false;
-	return true;
-}
-
 int TWFunc::tw_chmod(const string& fn, const string& mode) {
 	long mask = 0;
 	std::string::size_type n = mode.length();
@@ -978,43 +857,7 @@
 	if (!PartitionManager.Mount_By_Path("/system", true))
 		return false;
 
-	TWFunc::Exec_Cmd("/sbin/chattr -i /system/xbin/su");
-	if (copy_file("/supersu/su", "/system/xbin/su", 0755) != 0) {
-		LOGERR("Failed to copy su binary to /system/bin\n");
-		return false;
-	}
-	if (!Path_Exists("/system/bin/.ext")) {
-		mkdir("/system/bin/.ext", 0777);
-	}
-	TWFunc::Exec_Cmd("/sbin/chattr -i /system/bin/.ext/su");
-	if (copy_file("/supersu/su", "/system/bin/.ext/su", 0755) != 0) {
-		LOGERR("Failed to copy su binary to /system/bin/.ext/su\n");
-		return false;
-	}
-	TWFunc::Exec_Cmd("/sbin/chattr -i /system/xbin/daemonsu");
-	if (copy_file("/supersu/su", "/system/xbin/daemonsu", 0755) != 0) {
-		LOGERR("Failed to copy su binary to /system/xbin/daemonsu\n");
-		return false;
-	}
-	if (Path_Exists("/system/etc/init.d")) {
-		TWFunc::Exec_Cmd("/sbin/chattr -i /system/etc/init.d/99SuperSUDaemon");
-		if (copy_file("/supersu/99SuperSUDaemon", "/system/etc/init.d/99SuperSUDaemon", 0755) != 0) {
-			LOGERR("Failed to copy 99SuperSUDaemon to /system/etc/init.d/99SuperSUDaemon\n");
-			return false;
-		}
-	} else {
-		TWFunc::Exec_Cmd("/sbin/chattr -i /system/etc/install-recovery.sh");
-		if (copy_file("/supersu/install-recovery.sh", "/system/etc/install-recovery.sh", 0755) != 0) {
-			LOGERR("Failed to copy install-recovery.sh to /system/etc/install-recovery.sh\n");
-			return false;
-		}
-	}
-	if (copy_file("/supersu/Superuser.apk", "/system/app/Superuser.apk", 0644) != 0) {
-		LOGERR("Failed to copy Superuser app to /system/app\n");
-		return false;
-	}
-	if (!Fix_su_Perms())
-		return false;
+	check_and_run_script("/supersu/install-supersu.sh", "SuperSU");
 	return true;
 }