Jump to content


Recommended Posts


I've been thinking about removing the mid section silencer on my exhaust, off a 300Tdi Defender and wondered if anyone had done this and what the out come was?

I have the replacment pipe all I need is an hour to do the job!

Q, do I need new studs for the flanges or will the old ones come out?

Thanks fort your input.


Link to comment
Share on other sites

I swapped out the rusted centre silencer to a "straight thru" pipe (bought from someone on here).

It actually turned out to be a 20 minute job.

Three of the bolts holding the old rusted silencer sheared as I undid them so it only took a few mins to get the old silencer off :rolleyes:

The new pipe went on with new bolts (and copaslip!)

I got in and turned the key and ....... it sounded just like it did before :blink:

Driving it and it still feels just like how it did before the new pipe :huh:

From this, all I can summise is that the centre silencer really doesn't do too much on a 300 tdi!

Link to comment
Share on other sites

Hell, have you lot left anything on? :lol:


no cat, no mid box, no back box. pipe is standard bore and as straight as physically possible (except for a bend over the back axle) and exits out the back.

minimum restriction possible to increase the pressure differential on either side of the turbo - means it spins up much much quicker and at lower revs. Difference is quite marked.

Bit noisier, bit its a 90 with mud tyres and alot of rattles... so who cares?

Link to comment
Share on other sites


on my 300 90, i removed all the 300 system bar the non cat downpipe and bought a second hand Td5 tailpipe and made my own straight through pipe to join them...

I get the same miles out of a tank, driven hard everywhere now than i did taking it real easy before, if driven gently i get about 20 to 30 miles extra. Torque has noticebaly increased i can get the higher gears much sooner and it goes quicker.

Sound wise, it is much louder... sounds awesome when i floor it, turns heads as you drive down the street and cannot help to drop down a gear in tunnels now. when taking it easy it soudns fairly standard however drones ever so slightly more on a motorway. BTW i am 19 so may have differing views on exhaust loudness :)

best modification ive done though!



Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Create New...

Important Information

We use cookies to ensure you get the best experience. By using our website you agree to our Cookie Policy