How to Remove a Nissan S15 Silvia Exhaust from Turbo Back - Part 3

Part 3 - Removal of the Dump Pipe

The dump pipe connects to the turbo by 3 bolts and 2 nuts. It is rather "fiddly" to remove, but not particularly difficult. You need to remove a few components to access it.

The above image you will only need to worry about the blow-by hose (1), heat shield (11) and dump pipe (13). We will refer to this later.

First, remove the heat shield from the manifold along with the O2 sensor. I'd suggest removing the blow-by hose. The below picture doesn't show it but I completely removed the hose as it made it difficult to access the bolts and sensor (just use a pair of pliers to squeeze the clamp off the top and bottom).

The heat shield has four bolts on the top and one on the side near the ABS system. Be cautious, I broke off a bolt in removing the heat shield (I couldn't remove it despite my efforts with easy-outs).

You will need to use the 22mm O2 sensor socket for this step. Depending on the age of your O2 sensor, you may wish to replace for approx $100.

Begin to loosen the bolts/nuts around the turbo/dump pipe. You may need to be inventive with the spanner and socket set you use. I used a ratcheting spanner and a combination of sockets and adaptors/joints.

The above picture is from underneath the car. There is another heat shield that needs to be removed along with the nuts/bolts that hold the dump pipe to the turbo.

After the dump pipe is removed, clean up the area, add a new gasket and fit it all back together.

Fit the new dump pipe to the turbo, put on one or two nuts (loosely) then while supporting the dump pipe (as not to put the full weight of it on the turbo) you will need to shift backwards and fix the bracket to the car. The easiest way I found was to attach the bracket first and then you only have one bolt to attach.

Then slowly tighten all the nuts and bolts, in an opposing fashion to give an even fixture onto the turbo and bracket.

Now it is just a simple process of adding the cat and muffler (opposite as you took them out) and tightening up some bolts, and you're done.

Thanks for reading, any questions please feel free to leave as a comment below.

How to Remove a Nissan S15 Silvia Exhaust from Turbo Back - Part 2

Part 2 - Removal from Dump Pipe Back

As I only had two jack stands I had to first jack up the passenger side to remove the muffler and resonator and then I jacked up the front to remove the cat and dump pipe. The reason for this was due to me not trusting the wheel chocks that I had so I wanted at least one of the back wheels on the ground (with handbrake applied and in gear - as it is a RWD).

Please see the below images to familiarise yourself with the layout of the exhaust.

The next image details the layout of the exhaust from dump pipe back.

Now that the car is jacked up, start by removing the muffler.

Once under the car there are two nuts which attach the resonator pipe to the muffler - remove them. There is also another bolt which attaches the hanger to the underside of the car - remove this too.

You will need plenty of WD-40 and/or Loctite Freeze and Release to assist this.

Once the bolts are removed you will need to remove the rubber hangers. The above image shows the location of all three.

Applying some WD-40 to the hanger will help slide it off.

Now moving down the resonator pipe you will come to the next flange. This connects the catalytic converter to the resonator.

As you can see this was extremely rusted and took a bit of effort to remove. Once these two nuts are removed there is another hanger that needs to be taken off towards the rear of the car. After the hanger has been removed you will need to support the pipe as you lower it to the ground. 

The most difficult part to remove was the nuts which attach to the dump pipe.

There are 3 nuts to remove which attach to the dump pipe. You will need a lot of Freeze and Release to remove these. You may also require a universal joint for your socket set, or stubby/short spanners or ratcheting spanner. I used a combination of these to remove it.

Before you remove it completely, you must leave the bolts attached, but loose.

Next step is to remove the support bracket. This attaches via two bolts off towards the drivers side and attaches to the cat as pictured. Once you have removed these bolts you then need to support the pipe while you remove the 3 bolts from the dump pipe. Careful, it can be awkward to lower gently with only one hand.

You have now removed the exhaust system from dump pipe back. Next we will remove the dump pipe in Part 3.

How to Remove a Nissan S15 Silvia Exhaust from Turbo Back - Part 1

Part 1 - Preparation

What you'll need:

• Jack
• Stands
• WD40 and Freeze and Release
• Socket Set
• Ratcheting Spanner Set
• Safety Glasses
• Oxygen Sensor Removal Socket
• New Gaskets
• Anti-Seize Grease

Gaskets

22mm Oxygen Sensor Socket

WD-40 and Loctite Freeze and Release

Stock Exhaust Sounds

Outside

Inside

  

Prior to installing the new CES turbo back exhaust - here's the noise the current (stock) exhaust makes.

CES Turbo Back Exhaust - Intro

I bought a second hand turbo back exhaust a couple weeks ago and haven't quite got around to installing it yet as I am still waiting on gaskets. But I got impatient so I removed the muffler and compared it to the new Magnaflow muffler.

The CES turbo back system is meant to be one of the best you can buy. They are an Australian company and can be found here http://www.cesracing.com.au/

I have been in contact with them previously and were happy to help me out despite me purchasing a second hand system. Very good customer service.

The system is 3 inch stainless steel with a Magnaflow high flow cat and muffler, CES designed dump pipe with a black coating to deal with high temperatures.

Very happy with the purchase

 Resonator, High Flow Cat, Muffler and Dump Pipe

New and Old Mufflers

In the coming weeks I will install this and provide a how-to guide.

Dynamat Install and Removal and Installation of Door Trim

I was sick of my doors rattling everywhere over the slightest bump and buzzing when a song with bass came on, so I decided to install some Dynamat. I would highly recommend it for anyone with an older car especially if you have a decent sound system or hate road noise.

How to Install Dynamat on an S15 Silvia:

 1. Remove bottom screws

 2. Remove side screws

3. Remove side screws

4. Remove cover from handle and screw beneath

5. Remove cap and screw beneath

6. Remove cover

7. Gently pull door trim as shown - try to pivot around the tweeter

8. Remove switch from trim by gently prying off the clip

9. Unscrew the following

10. Remove plastic lining and glue - solvents may be required

11. Clean all surfaces that will have Dynamat applied

12. Mock up and "dry" fit the Dynamat - try using masking tape to hold in place while minor adjustments are made.

13. Cut through the Dynamat to allow cables through

14. Using a nail or similar, poke holes through Dynamat to where screws etc need to be placed

15. Repeat for the upper section -  avoid applying Dynamat near moving components (e.g. locking mechanism)

16. Re-install all components

Welcome to S15 Silvia Mods

Welcome to S15 Silvia Mods where we will take a look at modifying my 1999 Nissan S15 Silvia.

It was imported from Japan several years back and I am the second owner in Australia. When I bought it the only modifications the previous owner had done was to install a bleed valve and change the wheels to ROTA Grid's

Since owning it for 1.5 years I have only installed some simple mods including; security alarm, GPS/DVD player, and put Dynamat in my doors.

In the future I am looking to install a FMIC, turbo-back exhaust, etc. This blog is dedicated to past and present projects on my Silvia, so stay tuned.