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philip



Joined: 25 Jun 2008
Posts: 115
Location: United Kingdom
PostPosted: Wed Mar 30, 2011 19:18    Post subject: Reply with quote
wrinx wrote:
Thanks for your feedback Frank, very interesting.

I did a decat on my 155 Q4 just by using some stainless tube and two massive exhaust clamps...works brilliantly and only cost around £40!

Might look at doing the same....don't think the SZ needs a cat for the UK emissions test. Cool

wrinx


Might be age related (not sure), but my 1991 car doesn't have a cat and it's not a problem at MOT time.
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wrinx



Joined: 24 Dec 2009
Posts: 243
Location: United Kingdom
PostPosted: Wed Mar 30, 2011 21:20    Post subject: Reply with quote
Mmm...will have to check, thanks.

wrinx
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frankalfa



Joined: 05 Jun 2010
Posts: 78
Location: holland.
PostPosted: Wed Mar 30, 2011 22:30    Post subject: Reply with quote
Harry_sz wrote:
Okay, sounds interesting!
So you guys drive with only the rear silencer? Rest is open?


Yep, I will try to make a little recording of the 'noise' Laughing soon and post it here.

Regards,fRank
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frankalfa



Joined: 05 Jun 2010
Posts: 78
Location: holland.
PostPosted: Fri Apr 01, 2011 17:08    Post subject: Reply with quote
Little impression of the sound:
only an endmuffler Cool

Best regards,fRank
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Harry_sz
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Joined: 20 Mar 2008
Posts: 276
PostPosted: Sun Apr 03, 2011 12:46    Post subject: Reply with quote
Sounds great Frank! And not TOO loud.
I want that too! Smile

But first the valves and APK/MOT/TUV next tuesday.
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wrinx



Joined: 24 Dec 2009
Posts: 243
Location: United Kingdom
PostPosted: Sun Apr 03, 2011 15:14    Post subject: Reply with quote
Is it much louder the original inside? Mrs wrinx already complains about the cabin noise Rolling Eyes Laughing

wrinx
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frankalfa



Joined: 05 Jun 2010
Posts: 78
Location: holland.
PostPosted: Sun Apr 03, 2011 18:44    Post subject: Reply with quote
wrinx wrote:
Is it much louder the original inside? Mrs wrinx already complains about the cabin noise Rolling Eyes Laughing

wrinx


No it's not. When driving at a constant speed that is...
While accelerating the amount of noise depends on your right foot... Laughing

Serious; I think it is not that much louder than it used to be while driving. Most of the cabin noise comes from the air blowing around the A-pillar and rearview mirrors, the noise your tires make (the type of road!) and the usual rumble from the driving axle/gearbox. So in a way 'you replace noise by better noise...' Whistle
Good luck explaining that to Mrs. wrinx... Laughing

This afternoon I passed a few friends in their cars with 044 on full throttle while speeding up on the motorway> on the outside the difference in soundtrack is really recognizable as I understood later.. Twisted Evil

Best regards,fRank
Ps Harry; thanks, you should go for it too! Wink
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wrinx



Joined: 24 Dec 2009
Posts: 243
Location: United Kingdom
PostPosted: Mon Apr 04, 2011 0:03    Post subject: Reply with quote
frankalfa wrote:
So in a way 'you replace noise by better noise...' Whistle
Good luck explaining that to Mrs. wrinx... Laughing


Yeahhhh

wrinx
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Harry_sz
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Joined: 20 Mar 2008
Posts: 276
PostPosted: Tue Apr 05, 2011 11:40    Post subject: Reply with quote
@Frank : did you use Alfa 75 exhaust tubes or some specially made pipes?
How much did they cost and where did you get them?
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frankalfa



Joined: 05 Jun 2010
Posts: 78
Location: holland.
PostPosted: Tue Apr 05, 2011 12:05    Post subject: Reply with quote
Especially for Mrs. wrinx:(please don't mention the squeecky clutchpedal Embarassed )
View My Video
And for Mr. wrinx and all others: Cool
View My Video

Best regards,fRank
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frankalfa



Joined: 05 Jun 2010
Posts: 78
Location: holland.
PostPosted: Tue Apr 05, 2011 12:21    Post subject: Reply with quote
Harry_sz wrote:
@Frank : did you use Alfa 75 exhaust tubes or some specially made pipes?
How much did they cost and where did you get them?

Hi Harry,
I had an 75 turbo exhaust in stock. The mid silencer was replaced by a straight trough steel tube.
We cut the original sz exhaust in the part just before the cat. an removed it together with the midsilencer.

Then replaced the turbo tube from back to front ('clamp' connection on to the endmuffler is similar in diameter)
The turbo tube is longer because it originally has it's connection to the downpipe on the left side of the 4 cil. engine off course.
So some addional cutting and welding had to be done to make the tube fit to the original v6 tube.

To be honest, for me this is an 'el cheapo' Wink solution. In future I want to do some upgrading to the engine which may involve another (inox) custom made exhaust system too.
Therefore I chose to use an old tube as a temporary replacement.

I think that the 75 v6 exhaust will fit even better than a turbo tube, maybe the CSC midsilencer replacement tube for the 75v6 is a good alternative if you a more defenite solution?
Last year I had an 75 america with csc system, did sound great even with the cat. in place!

Best regards,fRank
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wrinx



Joined: 24 Dec 2009
Posts: 243
Location: United Kingdom
PostPosted: Tue Apr 05, 2011 20:16    Post subject: Reply with quote
frankalfa wrote:
Especially for Mrs. wrinx:(please don't mention the squeecky clutchpedal Embarassed )
View My Video
And for Mr. wrinx and all others: Cool
View My Video

Best regards,fRank


Sounds great Cool

I have a squeaky clutch pedal too Laughing

wrinx
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frankalfa



Joined: 05 Jun 2010
Posts: 78
Location: holland.
PostPosted: Tue Apr 05, 2011 22:26    Post subject: Reply with quote
I own(ed) several 75's an every one of them had this...

Haven't noticed the squeek in the 044 until in looked at this footage... Embarassed

Best regards,fRank
Ps Mrs. is allready convinced yet? Laughing
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Rogor



Joined: 27 May 2008
Posts: 121
Location: Netherlands
PostPosted: Sun May 01, 2011 9:51    Post subject: Reply with quote
frankalfa wrote:
Especially for Mrs. wrinx:(please don't mention the squeecky clutchpedal Embarassed )

Hoi Frank, Laat je mij weten wanneer en hoe je dit heb opgelost. Bij mij piept ie ook en ik word er een beetje tureluurs van.
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