Porsche Parts Catalog Porsche Accessories Catalog Porsche Technical Articles Porsche Tech Forums
 
  Search our site:    
View Recent Cars  |   Cart  | Project List | Order Status | Help    
 >  >
Fabspeed Maxflow Exhaust Installation
 
Bookmark and Share

Pelican Technical Article:

Fabspeed Maxflow Exhaust Installation

Steve Vernon

Time:

3 hours3 hrs

Tab:

$1200

Talent:

**

Tools:

13mm (2), 12mm socket, extensions, floor jack, jack stands, wheel chocks, safety glasses, torque wrench

Applicable Models:

Porsche 944 (1983-89)
Porsche 944 S2 (1989-91)
Porsche 944 Turbo (1986-89)
Porsche 944S (1987-88)

Parts Required:

Fabspeed Maxflow Exhaust

Hot Tip:

Get a friend to help

Performance Gain:

More power and better sounds

Changing out the stock muffler on a car is one of the most popular modifications people do to their vehicles. The Fabspeed Maxflow exhaust is a great choice to increase both your horsepower and torque; not to mention it sounds great!

Replacing the muffler on the Porsche 944 and 951 is simple and easy; the only issue is it is a little awkward so if you have any doubts about whether you can lift or handle it get a friend to help. It is a good idea to spray the hardware with a good penetrating lube for a week or so before you plan on removing it and let it heat cycle a few times. Even doing this you should be prepared for some of the hardware to break. Before you begin make sure you are working on a cold exhaust system.

To remove the old muffler and install the Fabspeed Maxflow exhaust you will need to safely raise and support the vehicle. Please see our article on safely raising and supporting your Porsche 944 or 951.

To remove the old muffler you will need to work on three areas: the rear hangers (red arrows), the catalytic convertor flange (yellow arrow) and the middle hanger (green arrow).
Figure 1

To remove the old muffler you will need to work on three areas: the rear hangers (red arrows), the catalytic convertor flange (yellow arrow) and the middle hanger (green arrow).

The rear of the muffler hangs from two rubber isolators (red arrow, one shown).
Figure 2

The rear of the muffler hangs from two rubber isolators (red arrow, one shown).

Make sure to spray the hardware with some good penetrating oil and try and do it several times over the course of a week or so, so it can get some heat cycles.
Figure 3

Make sure to spray the hardware with some good penetrating oil and try and do it several times over the course of a week or so, so it can get some heat cycles.

There is a hanger just in front of the flange (yellow arrow).
Figure 4

There is a hanger just in front of the flange (yellow arrow). Make sure you inspect the condition of the rubber hanger (red arrow) before removing the flange bolts. If the rubber hanger is broken the exhaust will drop on your head when you remove the hardware.

Inspect the condition of the hangers for the catalytic pipe as well before you remove the flange hardware.
Figure 5

Inspect the condition of the hangers for the catalytic pipe as well before you remove the flange hardware. The hangers on our Cat pipe were missing so we supported it first (red arrow) and then removed the hardware. Separate the pipes and let the pipe hang on its hanger (yellow arrow).

Use a 13mm socket and extension and remove the two rear hangers from the chassis (red arrows).
Figure 6

Use a 13mm socket and extension and remove the two rear hangers from the chassis (red arrows). Have a friend hold the muffler or keep a hand on it. Once you remove the hangers the muffler is free to fall. Remove the muffler and angle it off the hanger by the Cat.

You are going to transfer over the hanging hardware from the exhaust tip pipe to the Fabspeed system.
Figure 7

You are going to transfer over the hanging hardware from the exhaust tip pipe to the Fabspeed system. Carefully inspect your rubber hangers (red arrows) and go ahead and replace them if you have any concerns.

The Fabspeed kit comes with all the joining hardware you will need but you do need to use the factory hangers for installation.
Figure 8

The Fabspeed kit comes with all the joining hardware you will need but you do need to use the factory hangers for installation.

Transfer the old mounting hardware to the brackets on the exhaust tip pipe making sure to keep the same orientation (red arrows).
Figure 9

Transfer the old mounting hardware to the brackets on the exhaust tip pipe making sure to keep the same orientation (red arrows).

Leave the hardware loose on everything so you can fine tune it once everything is hung and adjusted.
Figure 10

Leave the hardware loose on everything so you can fine tune it once everything is hung and adjusted.

With the hangers mounted to the pipe slide the pipe into the muffler.
Figure 11

With the hangers mounted to the pipe slide the pipe into the muffler. The muffler is multi-directional so it does not matter which end you use. Attach one of the three-inch clamps (yellow arrow) and tighten it enough to hold it together but loose enough so you can make adjustments.

The Fabspeed hardware is as nice as the pipes and muffler, with exquisite attention to detail.
Figure 12

The Fabspeed hardware is as nice as the pipes and muffler, with exquisite attention to detail.

You are going to transfer over the hanger from the old pipe from the cat to muffler to the new one.
Figure 13

You are going to transfer over the hanger from the old pipe from the cat to muffler to the new one. The rubber on the old hanger (red arrow) demonstrates why I recommend ordering new rubber hangers when planning the installation.

You can see that the new rubber is an improvement on the old tired out piece (yellow arrow).
Figure 14

You can see that the new rubber is an improvement on the old tired out piece (yellow arrow). When transferring the bracket make sure to leave the hardware a little loose for adjustments.

Install the pipe (red arrow) into the muffler and loosely tighten the three-inch clamp (yellow arrow).
Figure 15

Install the pipe (red arrow) into the muffler and loosely tighten the three-inch clamp (yellow arrow).

Get a friend to help you install the system into the vehicle by first mounting the new hanger (red arrow) on the bracket on the torque tube next to the cat pipe.
Figure 16

Get a friend to help you install the system into the vehicle by first mounting the new hanger (red arrow) on the bracket on the torque tube next to the cat pipe.

Install the 13mm nuts on the two rear hangers (red arrows).
Figure 17

Install the 13mm nuts on the two rear hangers (red arrows). Now make adjustments to the mounting hardware to adjust for height (yellow arrows). New rubber will cause the tip to be higher than the position of the old exhaust. Once you have everything adjusted you can go back and tighten everything down.

Congratulations! You now have more horsepower, torque and a sweet, sweet sounding Porsche.
Figure 18

Congratulations! You now have more horsepower, torque and a sweet, sweet sounding Porsche.



Bookmark and Share

  Search our site:    

View Cart & CheckOut | Project List | Order Status |  Help    

 

[Home] [Customer Service] [Shopping Cart] [Project/Wish List]
  [Privacy Statement]  [Contact Us] [About Us] [Shipping] [Careers]

Copyright © Pelican Parts Inc. -    DMCA Registered Agent Contact Page

Page last updated: Wed 12/7/2016 02:54:00 AM