Decibel killer / Bung for exhaust - 5.5inch tail pipes!

Martin. · Oct 24, 2014

Anyone know where I can find this? For my mates Focus RS.

I've found up to 5" ones on eBay. But not sure how well it will work being a size too small.

Ridiculously big tailpipes!!

The Fatty · Oct 24, 2014

would this not be really detrimental to the exhaust fumes exiting?

JCC · Oct 24, 2014

KMS Thunderstorm exhaust?

Bungs look utterly shite, he'd be better off selling the cat back and buying a quieter system. Should get decent money for it on the forum.

Martin. · Oct 24, 2014

It wouldn't be ideal no. But no other way of getting it onto a Bedford track day.

Martin. · Oct 24, 2014

JCC said:
KMS Thunderstorm exhaust?

Bungs look utterly shite, he'd be better off selling the cat back and buying a quieter system. Should get decent money for it on the forum.

That's right mate. Stupid tail pipes.

Bungs do look s**t. But it's only for a track day not general use.

He likes the system and can't afford to get a centre section welded in.

Zippyobrien · Oct 24, 2014

I got a bung for my focus rs.

Only for long journys on the motorway though. Certainly wouldn't consider driving on boost with it in

Created a huge amount of back pressure

Martin. · Oct 24, 2014

Zippyobrien said:
I got a bung for my focus rs.

Only for long journys on the motorway though. Certainly wouldn't consider driving on boost with it in

Created a huge amount of back pressure

Yeah it's not an ideal situation. But to get it on a track day it'll be necessary. He will probably take it out once he's become aware of where the microphones at Bedford are anyway.

What size is your one mate?

Zippyobrien · Oct 24, 2014

Mines a 5inch mongoose system and blocker. The blocker was hks

Just to reiterate though. DONT DRIVE HARD WITH IT IN. :wink:

JCC · Oct 25, 2014

What sort of power is he running? Been told before of one case where a big turbo'd RS blew a few turbos before it was discovered the exhaust was poorly designed where it separates into the two back boxes and was creating a lot of back pressure causing them to fail.

I'd be wary of using bungs tbh.

celicaturbolly · Oct 26, 2014

Martin. said:
can't afford to get a centre section welded in.

Has an rs focus but can't afford a little welding?

Martin. · Oct 27, 2014

Zippyobrien said:
Mines a 5inch mongoose system and blocker. The blocker was hks
Just to reiterate though. DONT DRIVE HARD WITH IT IN. :wink:

Wasn't aware it was such a big deal. It'll just be to pass the static noise test. Any maybe sighting laps. I'll tell him to take it out once he's seen where the Bedford microphones are.

JCC said:
What sort of power is he running? Been told before of one case where a big turbo'd RS blew a few turbos before it was discovered the exhaust was poorly designed where it separates into the two back boxes and was creating a lot of back pressure causing them to fail.
I'd be wary of using bungs tbh.

I had no idea about this. Causing the turbo to fail? My mate did a full day at Bedford with a bung in his civic type R with no problems.

400bhp apparently. He bought the car like it so hasn't had a power run done to confirm yet.

celicaturbolly said:
Has an rs focus but can't afford a little welding?

Yep LOL, I would have just told him to get a centre section welded in otherwise.

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Decibel killer / Bung for exhaust - 5.5inch tail pipes!

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