diff --git a/app.go b/app.go
index 47611b3f408c..c4f7eeb2018a 100644
--- a/app.go
+++ b/app.go
@@ -9,9 +9,10 @@ import (
 	tmos "github.com/tendermint/tendermint/libs/os"
 	dbm "github.com/tendermint/tm-db"
 
-	bam "github.com/cosmos/cosmos-sdk/baseapp"
+	"github.com/cosmos/cosmos-sdk/baseapp"
 	"github.com/cosmos/cosmos-sdk/codec"
 	codecstd "github.com/cosmos/cosmos-sdk/codec/std"
+	"github.com/cosmos/cosmos-sdk/std"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/types/module"
 	"github.com/cosmos/cosmos-sdk/version"
@@ -95,7 +96,7 @@ var _ App = (*SimApp)(nil)
 // They are exported for convenience in creating helper functions, as object
 // capabilities aren't needed for testing.
 type SimApp struct {
-	*bam.BaseApp
+	*baseapp.BaseApp
 	cdc *codec.Codec
 
 	invCheckPeriod uint
@@ -138,19 +139,19 @@ type SimApp struct {
 // NewSimApp returns a reference to an initialized SimApp.
 func NewSimApp(
 	logger log.Logger, db dbm.DB, traceStore io.Writer, loadLatest bool, skipUpgradeHeights map[int64]bool,
-	homePath string, invCheckPeriod uint, baseAppOptions ...func(*bam.BaseApp),
+	homePath string, invCheckPeriod uint, baseAppOptions ...func(*baseapp.BaseApp),
 ) *SimApp {
 
 	// TODO: Remove cdc in favor of appCodec once all modules are migrated.
 	cdc := codecstd.MakeCodec(ModuleBasics)
 	appCodec := codecstd.NewAppCodec(cdc)
 
-	bApp := bam.NewBaseApp(appName, logger, db, auth.DefaultTxDecoder(cdc), baseAppOptions...)
+	bApp := baseapp.NewBaseApp(appName, logger, db, auth.DefaultTxDecoder(cdc), baseAppOptions...)
 	bApp.SetCommitMultiStoreTracer(traceStore)
 	bApp.SetAppVersion(version.Version)
 
 	keys := sdk.NewKVStoreKeys(
-		bam.MainStoreKey, auth.StoreKey, bank.StoreKey, staking.StoreKey,
+		auth.StoreKey, bank.StoreKey, staking.StoreKey,
 		supply.StoreKey, mint.StoreKey, distr.StoreKey, slashing.StoreKey,
 		gov.StoreKey, params.StoreKey, ibc.StoreKey, upgrade.StoreKey,
 		evidence.StoreKey, transfer.StoreKey, capability.StoreKey,
@@ -176,7 +177,9 @@ func NewSimApp(
 	app.subspaces[slashing.ModuleName] = app.ParamsKeeper.Subspace(slashing.DefaultParamspace)
 	app.subspaces[gov.ModuleName] = app.ParamsKeeper.Subspace(gov.DefaultParamspace).WithKeyTable(gov.ParamKeyTable())
 	app.subspaces[crisis.ModuleName] = app.ParamsKeeper.Subspace(crisis.DefaultParamspace)
-	app.subspaces[evidence.ModuleName] = app.ParamsKeeper.Subspace(evidence.DefaultParamspace)
+
+	// set the BaseApp's parameter store
+	bApp.SetParamStore(app.ParamsKeeper.Subspace(baseapp.Paramspace).WithKeyTable(std.ConsensusParamsKeyTable()))
 
 	// add capability keeper and ScopeToModule for ibc module
 	app.CapabilityKeeper = capability.NewKeeper(appCodec, keys[capability.StoreKey])
@@ -250,7 +253,7 @@ func NewSimApp(
 
 	// create evidence keeper with router
 	evidenceKeeper := evidence.NewKeeper(
-		appCodec, keys[evidence.StoreKey], app.subspaces[evidence.ModuleName], &app.StakingKeeper, app.SlashingKeeper,
+		appCodec, keys[evidence.StoreKey], &app.StakingKeeper, app.SlashingKeeper,
 	)
 	evidenceRouter := evidence.NewRouter().
 		AddRoute(ibcclient.RouterKey, ibcclient.HandlerClientMisbehaviour(app.IBCKeeper.ClientKeeper))
@@ -330,8 +333,7 @@ func NewSimApp(
 	app.SetEndBlocker(app.EndBlocker)
 
 	if loadLatest {
-		err := app.LoadLatestVersion(app.keys[bam.MainStoreKey])
-		if err != nil {
+		if err := app.LoadLatestVersion(); err != nil {
 			tmos.Exit(err.Error())
 		}
 	}
@@ -370,7 +372,7 @@ func (app *SimApp) InitChainer(ctx sdk.Context, req abci.RequestInitChain) abci.
 
 // LoadHeight loads a particular height
 func (app *SimApp) LoadHeight(height int64) error {
-	return app.LoadVersion(height, app.keys[bam.MainStoreKey])
+	return app.LoadVersion(height)
 }
 
 // ModuleAccountAddrs returns all the app's module account addresses.
diff --git a/app_test.go b/app_test.go
index 17b6b3c28644..1fe5b66065b4 100644
--- a/app_test.go
+++ b/app_test.go
@@ -32,7 +32,7 @@ func TestSimAppExport(t *testing.T) {
 
 	// Making a new app object with the db, so that initchain hasn't been called
 	app2 := NewSimApp(log.NewTMLogger(log.NewSyncWriter(os.Stdout)), db, nil, true, map[int64]bool{}, DefaultNodeHome, 0)
-	_, _, err = app2.ExportAppStateAndValidators(false, []string{})
+	_, _, _, err = app2.ExportAppStateAndValidators(false, []string{})
 	require.NoError(t, err, "ExportAppStateAndValidators should not have an error")
 }
 
diff --git a/export.go b/export.go
index 23a23527921d..84e442fafa2b 100644
--- a/export.go
+++ b/export.go
@@ -18,7 +18,7 @@ import (
 // file.
 func (app *SimApp) ExportAppStateAndValidators(
 	forZeroHeight bool, jailWhiteList []string,
-) (appState json.RawMessage, validators []tmtypes.GenesisValidator, err error) {
+) (appState json.RawMessage, validators []tmtypes.GenesisValidator, cp *abci.ConsensusParams, err error) {
 
 	// as if they could withdraw from the start of the next block
 	ctx := app.NewContext(true, abci.Header{Height: app.LastBlockHeight()})
@@ -30,11 +30,11 @@ func (app *SimApp) ExportAppStateAndValidators(
 	genState := app.mm.ExportGenesis(ctx, app.cdc)
 	appState, err = codec.MarshalJSONIndent(app.cdc, genState)
 	if err != nil {
-		return nil, nil, err
+		return nil, nil, nil, err
 	}
 
 	validators = staking.WriteValidators(ctx, app.StakingKeeper)
-	return appState, validators, nil
+	return appState, validators, app.BaseApp.GetConsensusParams(ctx), nil
 }
 
 // prepare for fresh start at zero height
diff --git a/sim_test.go b/sim_test.go
index bcfb64398717..7cec5aa64419 100644
--- a/sim_test.go
+++ b/sim_test.go
@@ -116,7 +116,7 @@ func TestAppImportExport(t *testing.T) {
 
 	fmt.Printf("exporting genesis...\n")
 
-	appState, _, err := app.ExportAppStateAndValidators(false, []string{})
+	appState, _, _, err := app.ExportAppStateAndValidators(false, []string{})
 	require.NoError(t, err)
 
 	fmt.Printf("importing genesis...\n")
@@ -143,7 +143,6 @@ func TestAppImportExport(t *testing.T) {
 	fmt.Printf("comparing stores...\n")
 
 	storeKeysPrefixes := []StoreKeysPrefixes{
-		{app.keys[baseapp.MainStoreKey], newApp.keys[baseapp.MainStoreKey], [][]byte{}},
 		{app.keys[auth.StoreKey], newApp.keys[auth.StoreKey], [][]byte{}},
 		{app.keys[staking.StoreKey], newApp.keys[staking.StoreKey],
 			[][]byte{
@@ -208,7 +207,7 @@ func TestAppSimulationAfterImport(t *testing.T) {
 
 	fmt.Printf("exporting genesis...\n")
 
-	appState, _, err := app.ExportAppStateAndValidators(true, []string{})
+	appState, _, _, err := app.ExportAppStateAndValidators(true, []string{})
 	require.NoError(t, err)
 
 	fmt.Printf("importing genesis...\n")
diff --git a/test_helpers.go b/test_helpers.go
index cf6dc8164efc..5caa00f212b4 100644
--- a/test_helpers.go
+++ b/test_helpers.go
@@ -12,6 +12,7 @@ import (
 	"github.com/tendermint/tendermint/crypto"
 	"github.com/tendermint/tendermint/crypto/ed25519"
 	"github.com/tendermint/tendermint/libs/log"
+	tmtypes "github.com/tendermint/tendermint/types"
 	dbm "github.com/tendermint/tm-db"
 
 	bam "github.com/cosmos/cosmos-sdk/baseapp"
@@ -24,10 +25,29 @@ import (
 	"github.com/cosmos/cosmos-sdk/x/supply"
 )
 
+// DefaultConsensusParams defines the default Tendermint consensus params used in
+// SimApp testing.
+var DefaultConsensusParams = &abci.ConsensusParams{
+	Block: &abci.BlockParams{
+		MaxBytes: 200000,
+		MaxGas:   2000000,
+	},
+	Evidence: &abci.EvidenceParams{
+		MaxAgeNumBlocks: 302400,
+		MaxAgeDuration:  1814400,
+	},
+	Validator: &abci.ValidatorParams{
+		PubKeyTypes: []string{
+			tmtypes.ABCIPubKeyTypeEd25519,
+			tmtypes.ABCIPubKeyTypeSecp256k1,
+		},
+	},
+}
+
 // Setup initializes a new SimApp. A Nop logger is set in SimApp.
 func Setup(isCheckTx bool) *SimApp {
 	db := dbm.NewMemDB()
-	app := NewSimApp(log.NewNopLogger(), db, nil, true, map[int64]bool{}, DefaultNodeHome, 0)
+	app := NewSimApp(log.NewNopLogger(), db, nil, true, map[int64]bool{}, DefaultNodeHome, 5)
 	if !isCheckTx {
 		// init chain must be called to stop deliverState from being nil
 		genesisState := NewDefaultGenesisState()
@@ -39,8 +59,9 @@ func Setup(isCheckTx bool) *SimApp {
 		// Initialize the chain
 		app.InitChain(
 			abci.RequestInitChain{
-				Validators:    []abci.ValidatorUpdate{},
-				AppStateBytes: stateBytes,
+				Validators:      []abci.ValidatorUpdate{},
+				ConsensusParams: DefaultConsensusParams,
+				AppStateBytes:   stateBytes,
 			},
 		)
 	}
@@ -70,8 +91,9 @@ func SetupWithGenesisAccounts(genAccs []authexported.GenesisAccount, balances ..
 
 	app.InitChain(
 		abci.RequestInitChain{
-			Validators:    []abci.ValidatorUpdate{},
-			AppStateBytes: stateBytes,
+			Validators:      []abci.ValidatorUpdate{},
+			ConsensusParams: DefaultConsensusParams,
+			AppStateBytes:   stateBytes,
 		},
 	)
 
diff --git a/types.go b/types.go
index a3f146f67ceb..64c1fe53f3e7 100644
--- a/types.go
+++ b/types.go
@@ -36,7 +36,7 @@ type App interface {
 	// Exports the state of the application for a genesis file.
 	ExportAppStateAndValidators(
 		forZeroHeight bool, jailWhiteList []string,
-	) (json.RawMessage, []tmtypes.GenesisValidator, error)
+	) (json.RawMessage, []tmtypes.GenesisValidator, *abci.ConsensusParams, error)
 
 	// All the registered module account addreses.
 	ModuleAccountAddrs() map[string]bool
diff --git a/utils.go b/utils.go
index d023040d753d..8cd3822722e6 100644
--- a/utils.go
+++ b/utils.go
@@ -76,7 +76,7 @@ func CheckExportSimulation(
 ) error {
 	if config.ExportStatePath != "" {
 		fmt.Println("exporting app state...")
-		appState, _, err := app.ExportAppStateAndValidators(false, nil)
+		appState, _, _, err := app.ExportAppStateAndValidators(false, nil)
 		if err != nil {
 			return err
 		}