diff --git a/EventFilter/SiPixelRawToDigi/python/SiPixelRawToDigi_cfi.py b/EventFilter/SiPixelRawToDigi/python/SiPixelRawToDigi_cfi.py
index 528ffa2683fa8..49e867fd0574c 100644
--- a/EventFilter/SiPixelRawToDigi/python/SiPixelRawToDigi_cfi.py
+++ b/EventFilter/SiPixelRawToDigi/python/SiPixelRawToDigi_cfi.py
@@ -19,6 +19,9 @@
 siPixelDigis.Regions = cms.PSet( ) 
 siPixelDigis.CablingMapLabel = cms.string("")
 
+# adjustment to online
+siPixelDigis.UserErrorList = []
+
 from Configuration.Eras.Modifier_phase1Pixel_cff import phase1Pixel
 phase1Pixel.toModify(siPixelDigis, UsePhase1=True)
 
@@ -27,4 +30,3 @@
 
 from Configuration.ProcessModifiers.gpu_cff import gpu
 gpu.toReplaceWith(siPixelDigis, _siPixelDigis_gpu)
-
diff --git a/RecoLocalTracker/SiPixelClusterizer/python/SiPixelClusterizer_cfi.py b/RecoLocalTracker/SiPixelClusterizer/python/SiPixelClusterizer_cfi.py
index e92a2c08f849d..47aae978f1970 100644
--- a/RecoLocalTracker/SiPixelClusterizer/python/SiPixelClusterizer_cfi.py
+++ b/RecoLocalTracker/SiPixelClusterizer/python/SiPixelClusterizer_cfi.py
@@ -45,6 +45,11 @@
 
 )
 
+# Adjustment to online
+siPixelClusters.ChannelThreshold = 1000
+siPixelClusters.maxNumberOfClusters = 40000
+
+
 # Need these until phase2 pixel templates are used
 from Configuration.Eras.Modifier_phase2_tracker_cff import phase2_tracker
 phase2_tracker.toModify(siPixelClusters, # FIXME
diff --git a/RecoLocalTracker/SiPixelClusterizer/python/siPixelClustersHeterogeneous_cfi.py b/RecoLocalTracker/SiPixelClusterizer/python/siPixelClustersHeterogeneous_cfi.py
index b86520bb28287..5430843dc4588 100644
--- a/RecoLocalTracker/SiPixelClusterizer/python/siPixelClustersHeterogeneous_cfi.py
+++ b/RecoLocalTracker/SiPixelClusterizer/python/siPixelClustersHeterogeneous_cfi.py
@@ -35,3 +35,10 @@
 
 # The following is copied from SiPixelRawToDigi_cfi
 phase1Pixel.toModify(siPixelClustersHeterogeneous, UsePhase1=True)
+
+# Adjustment to online
+# digi
+siPixelClustersHeterogeneous.UserErrorList = []
+# clusters
+siPixelClustersHeterogeneous.ChannelThreshold = 1000
+# there is no equivalent of maxNumberOfClusters
diff --git a/RecoPixelVertexing/PixelTrackFitting/python/PixelTracks_cff.py b/RecoPixelVertexing/PixelTrackFitting/python/PixelTracks_cff.py
index 16803a957c928..1cb1433d9f562 100644
--- a/RecoPixelVertexing/PixelTrackFitting/python/PixelTracks_cff.py
+++ b/RecoPixelVertexing/PixelTrackFitting/python/PixelTracks_cff.py
@@ -32,7 +32,11 @@
 # TrackingRegion
 pixelTracksTrackingRegions = _globalTrackingRegion.clone()
 trackingLowPU.toReplaceWith(pixelTracksTrackingRegions, _globalTrackingRegionFromBeamSpot.clone())
-
+# adjustment to online
+pixelTracksTrackingRegions = _globalTrackingRegionFromBeamSpot.clone(RegionPSet = dict(
+    originRadius = 0.02,
+    ptMin = 0.8,
+))
 
 # Pixel Quadruplets Tracking
 pixelTracksSeedLayers = initialStepSeedLayers.clone(
@@ -52,6 +56,8 @@
 )
 from Configuration.ProcessModifiers.gpu_cff import gpu
 gpu.toModify(pixelTracksHitQuadruplets, trackingRegions = "pixelTracksTrackingRegions")
+# adjustment to online
+pixelTracksHitQuadruplets.CAThetaCut = 0.002
 
 # for trackingLowPU
 pixelTracksHitTriplets = _pixelTripletHLTEDProducer.clone(