diff --git a/requirements-dev.txt b/requirements-dev.txt
index 2da823dc..7c06ed28 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,5 +1,6 @@
 aiofiles
 aiohttp==1.3.5
+chardet<=2.3.0
 beautifulsoup4
 coverage
 httptools
diff --git a/sanic/__init__.py b/sanic/__init__.py
index b67a3a6a..7bf0994a 100644
--- a/sanic/__init__.py
+++ b/sanic/__init__.py
@@ -1,6 +1,6 @@
 from sanic.app import Sanic
 from sanic.blueprints import Blueprint
 
-__version__ = '0.4.1'
+__version__ = '0.5.0'
 
 __all__ = ['Sanic', 'Blueprint']
diff --git a/sanic/app.py b/sanic/app.py
index 0567c97a..7b0d8a35 100644
--- a/sanic/app.py
+++ b/sanic/app.py
@@ -30,7 +30,7 @@ from sanic.websocket import WebSocketProtocol, ConnectionClosed
 class Sanic:
 
     def __init__(self, name=None, router=None, error_handler=None,
-                 load_env=True,
+                 load_env=True, request_class=None,
                  log_config_path=os.path.join(lib_path[0], "default.conf")):
         conf = None
         if log_config_path and os.path.exists(log_config_path):
@@ -55,6 +55,7 @@ class Sanic:
 
         self.name = name
         self.router = router or Router()
+        self.request_class = request_class
         self.error_handler = error_handler or ErrorHandler()
         self.config = Config(load_env=load_env)
         self.log_config_path = log_config_path
@@ -694,6 +695,7 @@ class Sanic:
 
         server_settings = {
             'protocol': protocol,
+            'request_class': self.request_class,
             'host': host,
             'port': port,
             'sock': sock,
diff --git a/sanic/server.py b/sanic/server.py
index 57f833ed..bdae20c4 100644
--- a/sanic/server.py
+++ b/sanic/server.py
@@ -65,6 +65,7 @@ class HttpProtocol(asyncio.Protocol):
         'parser', 'request', 'url', 'headers',
         # request config
         'request_handler', 'request_timeout', 'request_max_size',
+        'request_class',
         # enable or disable access log / error log purpose
         'has_log_file',
         # connection management
@@ -72,7 +73,7 @@ class HttpProtocol(asyncio.Protocol):
 
     def __init__(self, *, loop, request_handler, error_handler,
                  signal=Signal(), connections=set(), request_timeout=60,
-                 request_max_size=None, has_log_file=True):
+                 request_max_size=None, request_class=None, has_log_file=True):
         self.loop = loop
         self.transport = None
         self.request = None
@@ -86,6 +87,7 @@ class HttpProtocol(asyncio.Protocol):
         self.error_handler = error_handler
         self.request_timeout = request_timeout
         self.request_max_size = request_max_size
+        self.request_class = request_class or Request
         self._total_request_size = 0
         self._timeout_handler = None
         self._last_request_time = None
@@ -155,7 +157,7 @@ class HttpProtocol(asyncio.Protocol):
         self.headers.append((name.decode().casefold(), value.decode()))
 
     def on_headers_complete(self):
-        self.request = Request(
+        self.request = self.request_class(
             url_bytes=self.url,
             headers=CIDict(self.headers),
             version=self.parser.get_http_version(),
@@ -355,7 +357,7 @@ def serve(host, port, request_handler, error_handler, before_start=None,
           request_timeout=60, ssl=None, sock=None, request_max_size=None,
           reuse_port=False, loop=None, protocol=HttpProtocol, backlog=100,
           register_sys_signals=True, run_async=False, connections=None,
-          signal=Signal(), has_log_file=True):
+          signal=Signal(), request_class=None, has_log_file=True):
     """Start asynchronous HTTP Server on an individual process.
 
     :param host: Address to host on
@@ -380,6 +382,7 @@ def serve(host, port, request_handler, error_handler, before_start=None,
     :param reuse_port: `True` for multiple workers
     :param loop: asyncio compatible event loop
     :param protocol: subclass of asyncio protocol class
+    :param request_class: Request class to use
     :param has_log_file: disable/enable access log and error log
     :return: Nothing
     """
@@ -402,6 +405,7 @@ def serve(host, port, request_handler, error_handler, before_start=None,
         error_handler=error_handler,
         request_timeout=request_timeout,
         request_max_size=request_max_size,
+        request_class=request_class,
         has_log_file=has_log_file
     )
 
diff --git a/sanic/testing.py b/sanic/testing.py
index 1cad6a7b..787106a6 100644
--- a/sanic/testing.py
+++ b/sanic/testing.py
@@ -1,3 +1,5 @@
+import traceback
+
 from sanic.log import log
 
 HOST = '127.0.0.1'
@@ -50,6 +52,8 @@ class SanicTestClient:
                     **request_kwargs)
                 results[-1] = response
             except Exception as e:
+                log.error(
+                    'Exception:\n{}'.format(traceback.format_exc()))
                 exceptions.append(e)
             self.app.stop()