DINAN G87 M2 High Flow Middle Exhaust Instruction Manual

G87 M2 High Flow Middle Exhaust
Instruction Manual

G87 M2 High Flow Middle Exhaust

Thank you for being selective enough to choose a Dinan Performance Exhaust System. The Dinan Engineering Team has spent many hours developing this product to assure that you  will receive maximum benefits for a more aggressive sounding system, increased performance, durability and an aesthetic design that you as a customer will be able to enjoy for many years. Ease of installation and maintenance is important to us and has been highly considered throughout the design process.
Prior to performing the installation, familiarize yourself with these instructions as it should help you with the process. If you feel that you do not have the required skills or tools, please arrange for a qualified repair facility to perform the installation. If you have any difficulties during the installation, or if these instructions are not clear to you, please call Dinan’s Technical Support Staff at 800-341-5480. Again, thank you for choosing Dinan. Enjoy.

PARTS LIST

Box Contents

REMOVAL OF STOCK SYSTEM

STEP 1:
Remove mid-section brace.

STEP 2:
There are 2 cut locations. Steps 2-4 show the cut location to separate the rear muffler section from the middle silencer section.
The rear muffler silencer will remain on the vehicle. Removal of the entire system may also help when cutting. STEP 3:
Locate the cut point. There are dimples marked at 3 separate locations on each tube. These can be seen just aft of the most rear silencer
You will be cutting at the CENTER punch mark as shown.
Protect the rear silencer from falling STEP 4:
Cut through exhaust pipes at the marked point with a suitable tool Ensure the cuts are perpendicular to the pipes STEP 5:
The second cut location is just aft of the secondary cats. This requires a measurement prior to cutting.
Measure twice, cut once. STEP 6:
On the driver side, measure 2.5” from the rear side of weld as shown.
This measurement is offset towards the rear of the vehicle. STEP 7:
On the passenger side of the vehicle, measure 4.5” from the rear hanger weldment as shown. This  measurement is offset towards the rear of the vehicle.
Once both pipes are properly marked, cut perpendicular to tube. STEP 8:
Un-bolt hanger on passenger side and remove the cut section.

DINAN MIDPIPE INSTALLATION

STEP 1:
Transfer hanger to Dinan system. STEP 2:
Using the single wide clamps, slide onto stock tubes. Slide the Dinan mindwipe system onto to stock system at the cut-point. STEP 3:
Re-attach the hanger to the vehicle and align midpipe in cavity. STEP 4:
Ensure that there is a gap between the pipe and hanger. This gap may be small but there must be one.
Snug fit the clamps. Do not fully tighten at this time as small adjustment may be needed. STEP 5:
If using a stock rear muffler – slide the double-wide clamps onto the tubes at the rear of the system.
If installing a Dinan rear muffler slide the single-wide clamps (included with the Dinan rear muffler) onto the tubes. STEP 6:
If using a stock rear muffler – center the double-wide  clamps evenly between the rear muffler section and the Dinan midpipe section in orientation shown.
If installing a Dinan rear muffler – slip the Dinan pipes over the outlets of the midpipes. STEP 7:
Ensure all hangers are angled towards the front of the vehicle throughout the exhaust system.
STEP 8:

Check hanger angles, clearances and tip location.
Once the positioning is to your liking:

1. Tighten all clamps
2. Re-Install brace.
3. Enjoy!

Dinan Engineering
4800 US Hwy 280 West
Opelika, AL 36801
Phone: 800.341.5480

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