diff --git a/src/NzbDrone.Common.Test/Http/HttpClientFixture.cs b/src/NzbDrone.Common.Test/Http/HttpClientFixture.cs
index b571ee9fa..02fde70da 100644
--- a/src/NzbDrone.Common.Test/Http/HttpClientFixture.cs
+++ b/src/NzbDrone.Common.Test/Http/HttpClientFixture.cs
@@ -57,6 +57,8 @@ namespace NzbDrone.Common.Test.Http
             var exception = Assert.Throws<HttpException>(() => Subject.Get<HttpBinResource>(request));
 
             exception.Response.StatusCode.Should().Be(statusCode);
+
+            ExceptionVerification.IgnoreWarns();
         }
 
 
@@ -66,11 +68,34 @@ namespace NzbDrone.Common.Test.Http
         {
             var request = new HttpRequest("http://eu.httpbin.org/status/" + (int)statusCode);
 
-             Assert.Throws<Exception>(() => Subject.Get<HttpBinResource>(request));
-            
+            Assert.Throws<Exception>(() => Subject.Get<HttpBinResource>(request));
         }
-    }
 
+        [Test]
+        public void should_send_user_agent()
+        {
+            var request = new HttpRequest("http://eu.httpbin.org/get");
+
+            var response = Subject.Get<HttpBinResource>(request);
+
+            response.Resource.Headers.Should().ContainKey("User-Agent");
+
+            var userAgent = response.Resource.Headers["User-Agent"].ToString();
+
+            userAgent.Should().Contain("NzbDrone");
+        }
+
+        [TestCase("Accept", "text/xml, text/rss+xml, application/rss+xml")]
+        public void should_send_headers(String header, String value)
+        {
+            var request = new HttpRequest("http://eu.httpbin.org/get");
+            request.Headers.Add(header, value);
+
+            var response = Subject.Get<HttpBinResource>(request);
+
+            response.Resource.Headers[header].ToString().Should().Be(value);
+        }
+    }
 
     public class HttpBinResource
     {
@@ -78,8 +103,4 @@ namespace NzbDrone.Common.Test.Http
         public string Origin { get; set; }
         public string Url { get; set; }
     }
-
-
-
-
 }
\ No newline at end of file
diff --git a/src/NzbDrone.Common/Http/HttpClient.cs b/src/NzbDrone.Common/Http/HttpClient.cs
index 7aead3467..4da22ba66 100644
--- a/src/NzbDrone.Common/Http/HttpClient.cs
+++ b/src/NzbDrone.Common/Http/HttpClient.cs
@@ -25,7 +25,9 @@ namespace NzbDrone.Common.Http
         public HttpClient(Logger logger)
         {
             _logger = logger;
-            _userAgent = String.Format("NzbDrone {0}", BuildInfo.Version);
+            _userAgent = String.Format("NzbDrone/{0} ({1} {2})",
+                BuildInfo.Version,
+                OsInfo.Os, OsInfo.Version.ToString(2));
             ServicePointManager.DefaultConnectionLimit = 12;
         }
 
@@ -42,6 +44,7 @@ namespace NzbDrone.Common.Http
 
             webRequest.Credentials = request.NetworkCredential;
             webRequest.Method = request.Method.ToString();
+            webRequest.UserAgent = _userAgent;
             webRequest.KeepAlive = false;
 
             if (!RuntimeInfoBase.IsProduction)
@@ -51,6 +54,11 @@ namespace NzbDrone.Common.Http
 
             var stopWatch = Stopwatch.StartNew();
 
+            if (request.Headers != null)
+            {
+                AddRequestHeaders(webRequest, request.Headers);
+            }
+
             if (!request.Body.IsNullOrWhiteSpace())
             {
                 var bytes = new byte[request.Body.Length * sizeof(char)];
@@ -154,5 +162,55 @@ namespace NzbDrone.Common.Http
             return Execute(request);
         }
 
+        protected virtual void AddRequestHeaders(HttpWebRequest webRequest, HttpHeader headers)
+        {
+            foreach (var header in headers)
+            {
+                switch (header.Key)
+                {
+                    case "Accept":
+                        webRequest.Accept = header.Value.ToString();
+                        break;
+                    case "Connection":
+                        webRequest.Connection = header.Value.ToString();
+                        break;
+                    case "Content-Length":
+                        webRequest.ContentLength = Convert.ToInt64(header.Value);
+                        break;
+                    case "Content-Type":
+                        webRequest.ContentType = header.Value.ToString();
+                        break;
+                    case "Date":
+                        webRequest.Date = (DateTime)header.Value;
+                        break;
+                    case "Expect":
+                        webRequest.Expect = header.Value.ToString();
+                        break;
+                    case "Host":
+                        webRequest.Host = header.Value.ToString();
+                        break;
+                    case "If-Modified-Since":
+                        webRequest.IfModifiedSince = (DateTime)header.Value;
+                        break;
+                    case "Range":
+                        throw new NotImplementedException();
+                        break;
+                    case "Referer":
+                        webRequest.Referer = header.Value.ToString();
+                        break;
+                    case "Transfer-Encoding":
+                        webRequest.TransferEncoding = header.Value.ToString();
+                        break;
+                    case "User-Agent":
+                        throw new NotSupportedException("User-Agent other than NzbDrone not allowed.");
+                    case "Proxy-Connection":
+                        throw new NotImplementedException();
+                        break;
+                    default:
+                        webRequest.Headers.Add(header.Key, header.Value.ToString());
+                        break;
+                }
+            }
+        }
     }
 }
\ No newline at end of file
diff --git a/src/NzbDrone.Common/Http/HttpRequest.cs b/src/NzbDrone.Common/Http/HttpRequest.cs
index 8ba571207..6fba92e10 100644
--- a/src/NzbDrone.Common/Http/HttpRequest.cs
+++ b/src/NzbDrone.Common/Http/HttpRequest.cs
@@ -14,8 +14,6 @@ namespace NzbDrone.Common.Http
             UriBuilder = new UriBuilder(url);
             Headers = new HttpHeader();
             _segments = new Dictionary<string, string>();
-
-            Headers.Accept = "application/json";
         }
 
         public UriBuilder UriBuilder { get; private set; }