diff --git a/install.sh b/install.sh
index 719b170..5151690 100644
--- a/install.sh
+++ b/install.sh
@@ -6,6 +6,11 @@ yellow='\e[93m'
 magenta='\e[95m'
 cyan='\e[96m'
 none='\e[0m'
+_red() { echo -e ${red}$*${none}; }
+_green() { echo -e ${green}$*${none}; }
+_yellow() { echo -e ${yellow}$*${none}; }
+_magenta() { echo -e ${magenta}$*${none}; }
+_cyan() { echo -e ${cyan}$*${none}; }
 
 # Root
 [[ $(id -u) != 0 ]] && echo -e "\n 哎呀……请使用 ${red}root ${none}用户运行 ${yellow}~(^_^) ${none}\n" && exit 1
@@ -907,20 +912,6 @@ backup_config() {
 	fi
 }
 
-try_enable_bbr() {
-	if [[ $(uname -r | cut -b 1) -eq 4 ]]; then
-		case $(uname -r | cut -b 3-4) in
-		9. | [1-9][0-9])
-			sed -i '/net.ipv4.tcp_congestion_control/d' /etc/sysctl.conf
-			sed -i '/net.core.default_qdisc/d' /etc/sysctl.conf
-			echo "net.ipv4.tcp_congestion_control = bbr" >>/etc/sysctl.conf
-			echo "net.core.default_qdisc = fq" >>/etc/sysctl.conf
-			sysctl -p >/dev/null 2>&1
-			;;
-		esac
-	fi
-}
-
 get_ip() {
 	ip=$(curl -s https://ipinfo.io/ip)
 	[[ -z $ip ]] && ip=$(curl -s https://api.ip.sb/ip)
@@ -980,7 +971,6 @@ install() {
 	blocked_hosts
 	shadowsocks_config
 	install_info
-	try_enable_bbr
 	# [[ $caddy ]] && domain_check
 	install_v2ray
 	if [[ $caddy || $v2ray_port == "80" ]]; then
@@ -993,6 +983,11 @@ install() {
 		fi
 	fi
 	[[ $caddy ]] && install_caddy
+
+	## bbr
+	_load bbr.sh
+	_try_enable_bbr
+	
 	get_ip
 	config
 	show_config_info
diff --git a/src/bbr.sh b/src/bbr.sh
new file mode 100644
index 0000000..e51a828
--- /dev/null
+++ b/src/bbr.sh
@@ -0,0 +1,20 @@
+_open_bbr() {
+	sed -i '/net.ipv4.tcp_congestion_control/d' /etc/sysctl.conf
+	sed -i '/net.core.default_qdisc/d' /etc/sysctl.conf
+	echo "net.ipv4.tcp_congestion_control = bbr" >>/etc/sysctl.conf
+	echo "net.core.default_qdisc = fq" >>/etc/sysctl.conf
+	sysctl -p >/dev/null 2>&1
+	echo
+	_green "..由于你的 VPS 内核支持开启 BBR ...已经为你启用 BBR 优化...."
+	echo
+}
+
+_try_enable_bbr() {
+	local _test1=$(uname -r | cut -d\. -f1)
+	local _test2=$(uname -r | cut -d\. -f2)
+	if [[ $_test1 -eq 4 && $_test2 -ge 9 ]] || [[ $_test1 -ge 5 ]]; then
+		_open_bbr
+		enable_bbr=true
+	fi
+}
+
diff --git a/src/init.sh b/src/init.sh
index 079a9c3..a1077b8 100644
--- a/src/init.sh
+++ b/src/init.sh
@@ -1,3 +1,9 @@
+_red() { echo -e ${red}$*${none}; }
+_green() { echo -e ${green}$*${none}; }
+_yellow() { echo -e ${yellow}$*${none}; }
+_magenta() { echo -e ${magenta}$*${none}; }
+_cyan() { echo -e ${cyan}$*${none}; }
+
 _rm() {
 	rm -rf "$@"
 }
diff --git a/v2ray.sh b/v2ray.sh
index a9b04b8..4b18a1a 100644
--- a/v2ray.sh
+++ b/v2ray.sh
@@ -2293,33 +2293,14 @@ other() {
 install_bbr() {
 	local test1=$(sed -n '/net.ipv4.tcp_congestion_control/p' /etc/sysctl.conf)
 	local test2=$(sed -n '/net.core.default_qdisc/p' /etc/sysctl.conf)
-	if [[ $(uname -r | cut -b 1) -eq 4 ]]; then
-		case $(uname -r | cut -b 3-4) in
-		9. | [1-9][0-9])
-			if [[ $test1 == "net.ipv4.tcp_congestion_control = bbr" && $test2 == "net.core.default_qdisc = fq" ]]; then
-				local is_bbr=true
-			else
-				local try_enable_bbr=true
-			fi
-			;;
-		esac
-	fi
-	if [[ $is_bbr ]]; then
+	if [[ $test1 == "net.ipv4.tcp_congestion_control = bbr" && $test2 == "net.core.default_qdisc = fq" ]]; then
 		echo
 		echo -e "$green BBR 已经启用啦...无需再安装$none"
 		echo
-	elif [[ $try_enable_bbr ]]; then
-		sed -i '/net.ipv4.tcp_congestion_control/d' /etc/sysctl.conf
-		sed -i '/net.core.default_qdisc/d' /etc/sysctl.conf
-		echo "net.ipv4.tcp_congestion_control = bbr" >>/etc/sysctl.conf
-		echo "net.core.default_qdisc = fq" >>/etc/sysctl.conf
-		sysctl -p >/dev/null 2>&1
-		echo
-		echo -e "$green ..由于你的 VPS 内核支持开启 BBR ...已经为你启用 BBR 优化....$none"
-		echo
 	else
-		# https://teddysun.com/489.html
-		bash <(curl -s -L https://github.com/teddysun/across/raw/master/bbr.sh)
+		_load bbr.sh
+		_try_enable_bbr
+		[[ ! $enable_bbr ]] && bash <(curl -s -L https://github.com/teddysun/across/raw/master/bbr.sh)
 	fi
 }
 install_lotserver() {