M7 SPEED R56 User manual

Rev 7/23/2014
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Ultimate MINI Performance
M7 R56 Rear Diffuser Tunnels
Installation Guide
Thank you for your purchase! We hope you enjoy the enhanced performance and styling for your MINI brought
to you only by the innovative minds of M7.
PLEASE READ INSTALLATION MANUAL BEFORE INSTALLING PRODUCT.
M7 Speed engineers and manufactures the highest quality and best fitting Mini Cooper accessories and
performance parts available anywhere on Planet Earth! Please inspect your parts when you receive them to
verify everything is included and no damage has happened during shipment. Read these instructions completely
BEFORE attempting to install this product. If you are not confident you can do the work described or do not
have the tools or skills necessary please contact a local M7 dealer (listed on or website www.m7speed.com) or a
reputable local automotive accessory installation center to perform this work. We acknowledge not everything is
perfect but we work very hard every day to improve our products and make installations easier. If you have any
comments please contact M7 Customer Service directly at 704-663-0094. We encourage and welcome all
criticism Good or Bad.
Thank you again for your purchase –we appreciate your business.
Every M7 product is packed with pride and care. Please see the checklist below of every part that is
included for this product.
Qty
Description
2
Main Tunnels (Left & Right)
2
Entry Tunnel Brackets (Left & Right)
2
Front Entry Tunnels (Left & Right)
1
Hardware Kit
1
Center Wing
3
Bumper Brackets (2 LS, 1 RS)
2
Main Tunnel Brackets-Front (Left & Right)

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Ultimate MINI Performance
CAUTION:
WHEN WORKING UNDER YOUR CAR ALWAYS USE THE RIGHT EQUIPMENT FOR THE JOB.
DON’T BE TEMPTED TO TAKE SHORT CUTS OR USE INAPPROPRIATE ITEMS. NEVER WORK
UNDERNEATH A VEHICLE THAT IS ONLY SUPPORTED BY A JACK; USE AXLE STANDS (JACK
STANDS) OR CAR RAMPS THAT ARE IN GOOD CONDITION AND PROPERLY RATED FOR
YOUR VEHICLE’S WEIGHT.
PLEASE NOTE: The M7 Rear Lower Diffuser Tunnels are meant to be painted (unless you purchased the Carbon
Fiber option). It is highly recommended to pre-install the diffuser tunnel kit BEFORE painting. Drilling is required
and there may be some minor marking and cutting involved that may damage the paint if done after your kit is
painted.
If you have already painted your tunnels or if you have the Carbon Fiber option, we suggest the use of
painter’s tape to cover any part of the tunnels that may be subject to cutting or marking in order to protect the
finish. Always use a wood block as support on the back side of the part when drilling holes. This will reduce tear
out when drilling the required mounting holes.
Identify the mounting brackets included with your M7 Rear Diffuser Tunnels:
Figure 1: Rear Bumper Brackets:
Left Side
Right Side

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Ultimate MINI Performance
Figure 2: Exhaust Hanger Brackets
Figure 3: Front Entry Tunnel Brackets
Note that the driver’s side front bracket has a notch on one side.
Left Side
Right Side
Left Side
Right Side
Notch

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Ultimate MINI Performance
Identify the different diffuser
tunnels. The straight edge on the
main tunnels goes along the outside
of the car (red in picture to the left).
The shaped edge of the tunnels
point inward and accommodate the
exhaust system (blue in picture to
the left). Another way to
differentiate the tunnels is that the
passenger side tunnel has an
indented mounting area that
corresponds to a factory mounting
bracket.
In the photo to the right (viewed as if looking up from
the bottom of the car), note that the Front Entry
diffuser tunnels correspond with the angled cut of
the main diffuser tunnels. The edges are meant to be
parallel to each other allowing the lower control arms
of the car to cut between them without interference.
Entry Tunnels
Main Tunnels
Front Entry Tunnels

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Ultimate MINI Performance
Jack up the rear of the car or drive the rear up onto ramps. Using ramps is ideal as it will keep the suspension
compressed and you can clearly see where the lower control arms sit.
Remove the rear apron from the car. In the rear
wheel wells, remove the plastic screws holding the
fender liner to the body. Open the rear hatch.
Unscrew the two screws attaching the top of the rear
apron to the back of the car (these screws may also
be holding in rubber door stops).
From the wheel well, release the plastic peg holding the fender flare to the rear bumper (see photo, connection
point circled in blue). Carefully pop off the rear half of the fender flares from either side of the rear bumper. You
do not have to remove the fender flare completely. Gently pull the fender flare towards the rear of the car then
out away from the car. This will reveal another screw attaching the rear apron to the body of the car that will
have to be undone (see photo, circled in red). Unplug any electrical connections that may be connected to the
rear apron (optional fog lights, etc). Gently pull the apron backwards away from the car.

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Ultimate MINI Performance
Install the front brackets.
Since you have to use the brackets as
templates for drilling mounting holes in the
tunnels, attach the brackets to the
underpan until they are flush with the
mounting surface but do not torque them
down at this time. The longer portion of
each bracket points towards the outside of
the steel beam. The shorter portion points
inward. Recall that the driver’s side bracket
has a notch at the long side of the bracket.
Screw these in until the bracket is flush
with the steel beam. Do not torque these
down at this time.
Install the exhaust hanger brackets.
Place a jack stand under the exhaust.
Disconnect the rear exhaust hangers
from the body of the car. Slide the
passenger side exhaust hanger into the
passenger side bracket as shown in the
image. Screw this into place but do not
torque it down at this time. Do the same
for the other side.

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Ultimate MINI Performance
Install the rear bumper brackets. Refer to the image below to see how the rear brackets look when installed.
These can be slid from side-to-side in order to get the best mounting possible.
The single passenger
side (right side) rear
bracket is roughly 4.5
inches (11.4 cm) away
from the pre-existing
mounting bracket and
about 10 inches (25.4
cm) away from the
passenger side end of
the steel bumper.
Existing Bracket

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Ultimate MINI Performance
The outer driver’s side (left side) bracket and inner driver’s side (left side) brackets are about 10.5 inches (26.7
cm) and 15 inches (38.1 cm), respectively, away from the driver’s side end of the steel bumper. These can be
adjusted from side to side in order to line up with the pilot holes of the tunnels.
Clamp these rear brackets in so that
they do not move, but do not torque
them into place just yet. Keep in
mind that the middle wing will affect
where the tunnels should sit. Be
prepared to loosen and move the
brackets as needed.
Mark the drilling points for passenger side. You will start by doing the
passenger side first. Have someone help you by holding the tunnels up
to the brackets. Keep in mind that there should be at least 1 inch (2.5
cm) of clearance in either direction of the lower control arm.
The main tunnel should be easy to position as it must line up with the
factory attachment point.
1”Clearance (Minimum)
Left Side

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Ultimate MINI Performance
You can move the rear bracket along the bumper by loosening the bolts and sliding the clamp.
Outline where the brackets sit on the tunnels. Trace the outline of the brackets onto the diffuser tunnels. Be
sure to do this for the front Entry Tunnel and Rear Main Tunnel. If you have the Carbon Fiber option or if you
have already painted your tunnels, use painter’s tape before making any marks. Mark the location of the
bumper bracket on the steel bumper before removal.
Remove all of the passenger (Right Side) brackets from the
passenger side and place them over the marked diffusers,
marking out where the attachment holes are.
Drill the passenger side tunnels. Start with a
1/16”(1.5mm) drill and drill a pilot hole at the
marked mounting locations. Final drill using a
3/8” (10mm) forstner bit, roto-broach cutter
or conventional twist drill (not recommended)
to final size all the predrilled holes. Note that
the hole will be slightly larger than the M6
hardware provided. This will make it easier for
you to final align the tunnels and reduce some
of the mounting stresses at the attachment
points (the provided large diameter washers
will ensure safe and secure attachment).
Always use a wood block as support on the
back side of the part when drilling holes. This
will reduce tear out when drilling the required
mounting holes.
Re-Install the Brackets. Follow the previous instructions to re-install the passenger side brackets. Tighten them
all down until they are hand tight. Do not bolt down the factory passenger side bracket at this point (it is also
used to hold in the rear apron).
Install the drilled passenger side tunnels. Use the provided M6 x 16mm lg Button Head screws and flat washers
to install the front and rear tunnel to the passenger side of the car. Tighten them all down until they are hand
tight.
Drill at these locations

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Ultimate MINI Performance
Mark the drilling points for the driver’s side. Similar to the install of the passenger side tunnels, have someone
help you by holding the tunnels of the driver’s side up to the brackets. Use the center wing to set the installation
distance between the driver’s side and passenger side main tunnels.
Use a straight edge or similar tool to make sure that the passenger side and driver’s side main tunnels extends
from the rear of the car by equal amounts.
Outline where the brackets sit on the tunnels. Trace the outline of the brackets onto the diffuser tunnels. Be
sure to do this for the front Entry Tunnel and Rear Main Tunnel. If you have the Carbon Fiber option or if you
have already painted your tunnels, use painter’s tape before making any marks. Mark the location of the
bumper bracket on the steel bumper before removal.
Drill the driver’s side tunnels. Start with a 1/16”(1.5mm) drill and drill a pilot hole at the marked mounting
locations. Final drill using a 3/8” (10mm) forstner bit, roto-broach cutter or conventional twist drill (not
recommended) to final size all the predrilled holes. Note that the hole will be slightly larger than the M6
hardware provided. This will make it easier for you to final align the tunnels and reduce some of the mounting
stresses at the attachment points (the provided large diameter washers will ensure safe and secure attachment).
Always use a wood block as support on the back side of the part when drilling holes. This will reduce tear out
when drilling the required mounting holes.
Re-Install the brackets and all tunnels. Use the provided M6 x 16mm lg Button Head screws and flat washers to
install the front and rear tunnel to the driver’s side of the car.
Install Middle Wing. The mounting holes for the middle wing are pre drilled. Install the wing using the provided
#10-32 x ½” lg button head screws and small flat washers.
Shape the rear apron. Make a
template of the shape of the
rear edge of each tunnel to
use as a cutting guide. Use a
Dremel tool (or similar tool)
with a plastic cutting wheel to
cut out the lower portion of
the rear apron in the shape of
the two tunnels. Patience and
marking out your path will
ensure a good fit. Be sure to
use painter’s tape to mark
out your cutting path and to
protect the rest of the apron
as you cut. File and sand all
the edges smooth once a
good fit is achieved.

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Ultimate MINI Performance
Re-Install the rear apron. Installation is
reverse of removal (See first steps). The rear
apron has a threaded metal clip. This clip sits
over the factory bracket attached to the steel
bumper. Make sure that this clip is in place
before re-installing the apron.
Be sure to bolt down the final passenger side
attachment point (factory mounting point).
Final work. The M7 Rear Lower Diffuser Tunnels are meant to be painted (unless fitted with the Carbon Fiber
option). The tunnels can now be easily removed to be prepped and painted. During final installation torque all
fasteners to 30 in-lbs (3.5 Nm). We highly recommend all fasteners be installed with a drop of blue Locktite
(thread locker) to reduce the chance of the fasteners vibrating loose.
Apply a strip of foam tape between the diffuser tunnels and rear apron to eliminate vibration, squeaks and
scuffing.
This completes the installation of the M7 R56 Rear Diffuser Tunnels.
For further technical support, please e-mail [e-mail] or call our office at
704-663-0094 Monday –Friday, 9:00am –4:00pm EST.
Thank you again for your purchase –we appreciate your business.
Please like us on Facebook (www.facebook.com/m7tuning) and post a picture of your newly installed parts for
the MINI community to see. Or send us some photos for our archives. ([e-mail])
Enjoy the Ride………………..
Team M7