360 exhaust modification
360 exhaust modification
Author
Discussion

ThreesixtyM

Original Poster:

287 posts

227 months

Friday 24th July 2009
quotequote all
Hi there. I'd like to permanently open the valves in the standard exhaust to give a better sound at low revs. What is the process to do this, is it something I could do myself or would the car have to go in? Many thanks.

Cactussed

5,364 posts

243 months

Friday 24th July 2009
quotequote all
Just buy a tubi and some decats.

Murcielago_Boy

2,014 posts

269 months

Friday 24th July 2009
quotequote all
Cactussed said:
Just buy a tubi and some decats.
yes

F355gtb2009

1,725 posts

210 months

Friday 24th July 2009
quotequote all
mine is permantly open on my 355 now,and it set of alarms! its crazy loud!

ThreesixtyM

Original Poster:

287 posts

227 months

Friday 24th July 2009
quotequote all
A tubi is on the cards, just thought it would be interesting, and cheaper, to try this first. I seem to remember being told it was fairly straightforward, but obviously wasn't paying enough attention to remember the process!

bromers2

1,867 posts

280 months

Friday 24th July 2009
quotequote all
Unplug the two electric valves on the exhaust - permanently opens them. Slightly difficult to access if you don't know where they are - they're behind the rear lights - small (2/3cm) plug.

Cheap and quick mod.

john purdie

259 posts

263 months

Friday 31st July 2009
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Hi Bromers

By unplugging these plugs does it kick on the warning lights?

yellowgriff

1,429 posts

212 months

Saturday 1st August 2009
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john purdie said:
Hi Bromers

By unplugging these plugs does it kick on the warning lights?
same as above does this make any warning lights come up on dash....Many thanks

davidexige

598 posts

236 months

Saturday 1st August 2009
quotequote all
No warning lights should come on after carrying out this mod, just make sure you unplug the exhaust valve connector and not the cat connector. I put a couple of plastic bags round the connectors after doing it to make sure no water gets in.

Edited by davidexige on Saturday 1st August 17:11

900ssduke

241 posts

231 months

Saturday 1st August 2009
quotequote all
Or pull the black rubber vacuum tubes off the exhaust valves diaphrams and block them with a self tapping screw. No check lights.
But buy a Capristo, they howl.

MarlonM

141 posts

252 months

Sunday 2nd August 2009
quotequote all
I unplugged he valves permanently on my 360 Modena, and it was a great improvement at low revs, where the 360 sound was disapointing.

Recently I fitted a Milltek exhaust at Paramount Performance in Slough, and the system is awesome.

After much deliberation I decided on the Milltek as I preferred it to the Tubi/Capristos that I heard on other cars, it is totally personal however, for me the Tubi is too boomy, but others swear by them.

I liked the Milltek as it is loud at low revs, howls at high revs and is not boomy at all cruising at 80/90 on the motorway.

john purdie

259 posts

263 months

Monday 3rd August 2009
quotequote all
Ok long shot but here goes!.

does anyone have any pics of the plugs or how they did it!. do you unscrew the black plates off the rear of the car if not what. sorry not very mechanically minded but if it is too just unplug two plugs then I should be ok.

scoobyc

581 posts

261 months

ThreesixtyM

Original Poster:

287 posts

227 months

Monday 3rd August 2009
quotequote all
I don't have pictures, but have now done mine and am very pleased with the result. Behind the rear lights is a small grey assembly with rubber hoses running to, and from, it. From this assembly there is a rubber hose dropping down and connecting with the exhaust valve. The top of this is visible as a circular metal disc. Remove the hose from the exhaust valve, put a screw into the hole in the hose and secure it with the hose clip, tie it back with a cable tie. Bingo. Leave the hose connected to the grey assembly (don't know the proper name for it, sorry) and be careful when removing the hose from the exhaust valve to pull the hose straight back. The hose attaches to something as thick as a knitting needle running from the valve which may bend if it is forced to twist sideways. The effect it quite satisfying and gives a much better sound at low revs.

john purdie

259 posts

263 months

Tuesday 4th August 2009
quotequote all
ThreesixtyM said:
I don't have pictures, but have now done mine and am very pleased with the result. Behind the rear lights is a small grey assembly with rubber hoses running to, and from, it. From this assembly there is a rubber hose dropping down and connecting with the exhaust valve. The top of this is visible as a circular metal disc. Remove the hose from the exhaust valve, put a screw into the hole in the hose and secure it with the hose clip, tie it back with a cable tie. Bingo. Leave the hose connected to the grey assembly (don't know the proper name for it, sorry) and be careful when removing the hose from the exhaust valve to pull the hose straight back. The hose attaches to something as thick as a knitting needle running from the valve which may bend if it is forced to twist sideways. The effect it quite satisfying and gives a much better sound at low revs.
threesixty I take it yours is a modena and not a spider, I have a spider so do you know if it is located in the same place

davidexige

598 posts

236 months

Tuesday 4th August 2009
quotequote all
John, they are under the two plates that you have mentioned. Just remove them and you can get easy access.

yellowgriff

1,429 posts

212 months

Tuesday 4th August 2009
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Remove the plugs on my 360 mondena & been round the spainish country side this morning included a few mountain sides Great fun. Cheapest mod ive ever had,,,,,,LOL

ThreesixtyM

Original Poster:

287 posts

227 months

Tuesday 4th August 2009
quotequote all
I should have added, when you tie the hose back keep secure it away from any heat sources. Hope you enjoy the effect John.

ThreesixtyM

Original Poster:

287 posts

227 months

Tuesday 4th August 2009
quotequote all
I should have added, when you tie the hose back keep secure it away from any heat sources. Hope you enjoy the effect John.

Sir Tapalot

1 posts

203 months

Tuesday 10th November 2009
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Just done mine on my 2002 spider sounds much better, thanks for all the advice. should add though that on my car the near side was as described and simple, but the off side was impossible to get to because of a metal plate above the round exhaust valve. However i could see it through the louvres in the rear wheel arch liner. Once the wheel was off the wheel arch liner was easy to remove only 4 screws then easy access to the exhaust valve.