diff --git a/src/Guzzle/Http/Message/MessageFactory.php b/src/Guzzle/Http/Message/MessageFactory.php
index 01236615..5f3ec742 100644
--- a/src/Guzzle/Http/Message/MessageFactory.php
+++ b/src/Guzzle/Http/Message/MessageFactory.php
@@ -51,13 +51,8 @@ class MessageFactory implements MessageFactoryInterface
         return new Response($statusCode, $headers, $body, $options);
     }
 
-    public function createRequest(
-        $method,
-        $url,
-        array $headers = [],
-        $body = null,
-        array $options = array()
-    ) {
+    public function createRequest($method, $url, array $headers = [], $body = null, array $options = [])
+    {
         $request = new Request(
             $method,
             $url,
@@ -94,8 +89,9 @@ class MessageFactory implements MessageFactoryInterface
             $parsed['method'],
             Url::buildUrl($parsed['request_url']),
             $parsed['headers'],
-            $parsed['body']
-        )->setProtocolVersion($parsed['version']);
+            $parsed['body'],
+            $parsed
+        );
 
         // "Expect: 100-Continue" header is added when using a raw request body for PUT or POST requests.
         // This factory method should accurately reflect the message, so here we are removing the Expect
diff --git a/src/Guzzle/Http/Message/MessageParser.php b/src/Guzzle/Http/Message/MessageParser.php
index 11114811..9e6dafab 100644
--- a/src/Guzzle/Http/Message/MessageParser.php
+++ b/src/Guzzle/Http/Message/MessageParser.php
@@ -26,7 +26,7 @@ class MessageParser implements MessageParserInterface
         $parsed = [
             'method'   => strtoupper($parts['start_line'][0]),
             'protocol' => $protocol,
-            'version'  => $version,
+            'protocol_version' => $version,
             'headers'  => $parts['headers'],
             'body'     => $parts['body']
         ];
@@ -45,12 +45,12 @@ class MessageParser implements MessageParserInterface
         list($protocol, $version) = explode('/', trim($parts['start_line'][0]));
 
         return [
-            'protocol'      => $protocol,
-            'version'       => $version,
-            'code'          => $parts['start_line'][1],
-            'reason_phrase' => isset($parts['start_line'][2]) ? $parts['start_line'][2] : '',
-            'headers'       => $parts['headers'],
-            'body'          => $parts['body']
+            'protocol'         => $protocol,
+            'protocol_version' => $version,
+            'code'             => $parts['start_line'][1],
+            'reason_phrase'    => isset($parts['start_line'][2]) ? $parts['start_line'][2] : '',
+            'headers'          => $parts['headers'],
+            'body'             => $parts['body']
         ];
     }
 
diff --git a/src/Guzzle/Http/Message/Response.php b/src/Guzzle/Http/Message/Response.php
index b8145429..2df29f15 100644
--- a/src/Guzzle/Http/Message/Response.php
+++ b/src/Guzzle/Http/Message/Response.php
@@ -93,22 +93,11 @@ class Response implements ResponseInterface
      */
     public static function fromMessage($message)
     {
-        $parser = new MessageParser();
-        if (!($data = $parser->parseResponse($message))) {
+        if (!($data = (new MessageParser())->parseResponse($message))) {
             throw new \InvalidArgumentException('Unable to parse response message');
         }
 
-        $response = new static();
-        $response->setStatus($data['code'])
-            ->setHeaders($data['headers'])
-            ->setProtocolVersion($data['version'])
-            ->setStatus($data['code'], $data['reason_phrase']);
-
-        if (strlen($data['body']) > 0) {
-            $response->setBody($data['body']);
-        }
-
-        return $response;
+        return new static($data['code'], $data['headers'], $data['body'], $data);
     }
 
     /**
@@ -117,13 +106,20 @@ class Response implements ResponseInterface
      * @param string|resource|StreamInterface $body       The body of the response
      * @param array                           $options    Response message options
      *                                                    - header_factory: Factory used to create headers
+     *                                                    - reason_phrase: Set a custom reason phrease
+     *                                                    - protocol_version: Set a custom protocol version
      */
-    public function __construct($statusCode = null, array $headers = [], $body = null, array $options = [])
+    public function __construct($statusCode, array $headers = [], $body = null, array $options = [])
     {
         $this->initializeMessage($options);
-        if ($statusCode) {
-            $this->setStatus($statusCode);
+        $this->statusCode = (string) $statusCode;
+
+        if (isset($options['reason_phrase'])) {
+            $this->reasonPhrase = $options['reason_phrase'];
+        } elseif (isset(self::$statusTexts[$this->statusCode])) {
+            $this->reasonPhrase = self::$statusTexts[$this->statusCode];
         }
+
         if ($headers) {
             $this->setHeaders($headers);
         }
@@ -148,19 +144,6 @@ class Response implements ResponseInterface
         return $this->body;
     }
 
-    public function setStatus($statusCode, $reasonPhrase = '')
-    {
-        $this->statusCode = (string) $statusCode;
-
-        if (!$reasonPhrase && isset(self::$statusTexts[$this->statusCode])) {
-            $this->reasonPhrase = self::$statusTexts[$this->statusCode];
-        } else {
-            $this->reasonPhrase = $reasonPhrase;
-        }
-
-        return $this;
-    }
-
     public function getStatusCode()
     {
         return $this->statusCode;
diff --git a/src/Guzzle/Http/Message/ResponseInterface.php b/src/Guzzle/Http/Message/ResponseInterface.php
index 48293839..2b860b74 100644
--- a/src/Guzzle/Http/Message/ResponseInterface.php
+++ b/src/Guzzle/Http/Message/ResponseInterface.php
@@ -4,16 +4,6 @@ namespace Guzzle\Http\Message;
 
 interface ResponseInterface extends MessageInterface
 {
-    /**
-     * Set the response status
-     *
-     * @param string $statusCode   Response status code to set (e.g., "200")
-     * @param string $reasonPhrase Response reason phrase (e.g., "OK")
-     *
-     * @return self
-     */
-    public function setStatus($statusCode, $reasonPhrase = null);
-
     /**
      * Get the response status code (e.g. "200", "404", etc)
      *