BBK Performance 16335 User Manual

STEP 1

STEP 2

Remove air filter box. Remove the first and second nuts on the top row of studs on the stock

STEP 3

Raise car up and support on stands or place on car lift.

STEP 4

Unhook O2 sensor plugs for the front and rear O2 sensors,

STEP 5

Loosen clamps at front of stock H pipe and then loosen the barrel style clamps at the rear. These

STEP 6

Remove nuts on converters at the header collectors. Remove converter pipes.

STEP 7

Remove the four nuts on the round tube support brace under the oil pan and remove brace.

STEP 8

Loosen the three small bolts on the plastic cover that covers the area around and forward of the

STEP 9

Remove the two bolts from the steering u joint at the rack and pinion, remove u-joint so shaft

Fig. 1

STEP 10

Remove the starter.

STEP 11

With a jacking device in place under the bellhousing and a block of wood between the jack and

Fig’s 2 and 3

STEP 12

Remove all exhaust nuts and remove stock header. Remove stock gasket.

STEP 13

Remove the studs that

correspond

to the notches in the BBK header flange. You will install

STEP 15

Install nuts and bolts and tighten.

STEP 16

Reinstall motor mount and lower engine back down, Reinstall nut on mount stud.

STEP 17

Repeat steps 11 thru 16 for passenger side. NOTE: The first notch on the passenger side
cover.

STEP 19

Install supplied front and rear O2 sensor extension wires.

STEP 20

Remove front and rear O2 sensors. Install the front ones in the collectors of the headers, connect

STEP 21

Install the supplied studs in the collector flanges.

INS163

2011-2014 FORD MUSTANG
GT 5.0L FULL LENGTH
HEADERS PART# 1633/0/5

TOOLS REQUIRED-6, 8, 10, 13, 15mm socket, 8, 10, 13, 15, 22mm wrenches, ratchet, universal for sockets, various
length extensions,

You will be reusing most of the stock manifold studs for

header

Disconnect negative battery cable.
header on the driver side. On the passenger side, remove the first top nut that is behind the AC

hose. Use long extensions and socket to remove the outside converter pipe nut at the collector
of the stock header on the pass side. You won’t be able to access it when under the
Loosen

rear clamps will be reused with the BBK X-pipe assembly. Remove stock H pipe.

rack and pinion. Let plastic cover hang. This will give access to front header nuts.
can hang out of the way.

bellhousing,
bolts that secure the aluminum mount to the engine block. Remove the aluminum mount.

supplied bolts in these spots. Fig’s 4 and 5. NOTE: There are 2 thread pitches supplied,

because the
compare the supplied bolt to the factory stud to confirm which thread pitch to use.

STEP 14 Install gasket on remaining studs and install BBK header. You might have to raise motor a bit

more to get header to slide in place. The stock metal gasket will also work if you’d like to reuse it.

installation.

the motor mount nuts on the studs that face up but don’t remove yet.

remove the motor mount nut on the driverside, jack up engine and remove the four

manufacturer

Five required bolts are supplied.

changed the thread pitch used after 2011, you will have to

car.

header will re-use the factory stud and the remaining notches will use the supplied bolts (2).

STEP 18

Reinstall starter, steering u-joint and shaft and round tube lower brace. Reinstall front plastic

to the front O2 sensor extension wires.

IMPORTANT- All appropriate safety equipment and gear must be used during the installation of this or any BBK Performance products or any time you work on a vehicle. BBK
Performance Inc. accepts no responsibility for injuries or damage caused by or during the installation of this product

Revised 2/25/2013

STEP 22

STEP 23

Install the BBK X pipe section into the barrel clamps and then connect the front of the X pipe

STEP 24

Level out the X pipe and tighten the collector nuts, then tighten the barrel clamps.

STEP 25

Install the rear O2 sensors into the bungs on the X pipe and connect the O2 sensor extensions.

STEP 26

From the engine

compartment,

make sure to tighten any header nuts or bolts that you could not

STEP 27

Reinstall the air cleaner box.

STEP 28

Reconnect the negative battery cable.

STEP 29

Start engine and check for any exhaust leaks.

STEP 30

Header bolts and nuts should be rechecked after 500 miles or so.

Slide the stock barrel clamps onto the front of the stock exhaust system about halfway.
to the collectors of the headers. Use supplied nuts and washers to secure.

reach from below the car. The front ones are usually easier to tighten from above. Make sure
you tighten the motor mount nuts on the studs that face up. They are easier to get at from the
engine

compartment,

looking down on them.

ATTENTION:

Please follow the ECU Relearn procedure on page 6 before
driving on the road.

IMPORTANT- All appropriate safety equipment and gear must be used during the installation of this or any BBK Performance products or any time you work on a vehicle. BBK
Performance Inc. accepts no responsibility for injuries or damage caused by or during the installation of this product

Revised 2/25/2013