Do i remove center silencer ?

[robc]

what would the advantage be of removing the center silencer with a straight through from Supersprint ?
I have a Seat Sports rear box fitted

would i gain BHP / midrange power Ect

would noise levels go up ? to much ?

 

[LEE69]

I asked recently and got no replys either.

 

[robc]

yes this is my second time of asking ? well if i get any answers i will let you know !

 

[karlosR]

what are you driving? i think most gains on a petrol car can be found with a turbo-back system.

 

[robc]

LEON CUPRA T, is it a case of the quicked the gases escape the better ?

 

[D.K]

Yeh i think so.
You will get a bit more noise and less back presure.

 

[LEE69]

The cat acts a silencer anyway, so really we have 3 boxes which on a turbo is overkill imho.

 

[robc]

I have a Lancia Delta HF Turbo a number of years ago and i removed the rear box for a straight through pipe and the turbo picked up at 2500 where before it picked up at 3000. But am i looking for less back presure ?

 

[Deleted member 19366]

It helps the turbo spool up quicker and also as said gives the exhaust a deeper/throaty note. I had this done on my standard exhaust and noticed a difference but noticed a bigger difference when the miltek was fitted

 

[stewbie55]

My car had a straight through centre section when I bought it. I found it too noisy for my tastes so swapped to a resonated centre section which was much quieter.
Didn't noticed much, if any difference in performance between the two, even with BT setup.
So yes it will be noiser with a straight through centre (you may get a few pops too under hard acceleration) - the choice is yours...

 

[robc]

Great responce Gents, Thanks

 

[LEE69]

You going to go for it Rob?

 

[robc]

I am wanting a bit of pop and bang from the exhaust, but not to much ! some gains on the bhp would have been good, still not sure, and you ?

 

[LEE69]

A standard one from a TDi is the same fitment and as no centre box.
They are cheap about £13+vat and a one silenced for about £27 ish

I got a standard rear box of ebay last week so whilst its being put on tomorrow ill give the car a rev without the rear back box and hopefully that will give me an indication.

I don't really want loads of noise, just a bit more than, well, nothing

 

[Deleted member 19366]

The best way to get pop and bangs is to have a straight through from the cat to tail pipe (no silencers) or fit a decat. If you do the last option then when it's warm anoth it'll flame aswell

 

[robc]

Lee i would be interested on your thoughts after the work you are doing tomorrow ! Thanks Again all

 

[LEE69]

Yeah no worries ill post back

 

[LEE69]

With the back box off the sound is obviously louder, sounds "popping" as well.
I have just had the standard twin chrome pipe fitted for now, the diameter of the back box and the centre section were the same so need a sleeve over them or like this clamp i found on t'internet of a golf ( i guess the LC use these as standard)
Personally ill be getting a straight through pipe for the centre section when it needs replacing.

clamps as above

Mine now

I just need some trim to go around the edge of the bumper cut out to tidy it up.

This is what is was like earlier

 

[robc]

Thanks Lee, The twin pipes look good mate ! i think i will go for the straight through pipe now, Did you say that the oil burners center section is straight through and would fit the LC ?

 

[LEE69]

From looking at the online catalogues yeah it looks like it does, as i'll be going that route.