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exhaust by marot
Started on: 07-27-2013 02:56 PM
Replies: 12 (292 views)
Last post by: marot on 07-31-2013 02:52 PM
marot
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Report this Post07-27-2013 02:56 PM Click Here to See the Profile for marotClick Here to Email marotSend a Private Message to marotEdit/Delete MessageReply w/QuoteDirect Link to This Post
hi guys, i have a f 355 fiero with 3.4 puschrod open k@n filter , and (stock )exhaust system with cat and oem muffler with resonated tips,
but its loud to me,how can i make it quiter, i get headach if i drive it everyday,so it must be quiter, can i put a little resonator after the cat
and if that is not enough another little resonator before muffler i had put cc inserts between cat and muffler but it didnt do much.
i realy need to do this,please help ,thanks
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Gall757
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Report this Post07-27-2013 04:28 PM Click Here to See the Profile for Gall757Send a Private Message to Gall757Edit/Delete MessageReply w/QuoteDirect Link to This Post
Is the stock muffler old? Sometimes they loose the baffles and still look good on the outside.
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Arns85GT
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Report this Post07-27-2013 05:14 PM Click Here to See the Profile for Arns85GTClick Here to Email Arns85GTSend a Private Message to Arns85GTEdit/Delete MessageReply w/QuoteDirect Link to This Post
Your CAT may be gutted, and that will increase the noise. Like the man said, the muffler could be rotted inside.

Time for a new CAT and a new muffler.

Arn
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marot
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Report this Post07-27-2013 08:36 PM Click Here to See the Profile for marotClick Here to Email marotSend a Private Message to marotEdit/Delete MessageReply w/QuoteDirect Link to This Post
muffler is new, and the cat is not clocked
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Arns85GT
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Report this Post07-27-2013 10:45 PM Click Here to See the Profile for Arns85GTClick Here to Email Arns85GTSend a Private Message to Arns85GTEdit/Delete MessageReply w/QuoteDirect Link to This Post
Some mufflers are not so quiet. What type of muffler do you have?

Arn
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marot
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Report this Post07-28-2013 04:11 AM Click Here to See the Profile for marotClick Here to Email marotSend a Private Message to marotEdit/Delete MessageReply w/QuoteDirect Link to This Post
the muffler is stock oem (walker)
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marot
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Report this Post07-28-2013 07:02 AM Click Here to See the Profile for marotClick Here to Email marotSend a Private Message to marotEdit/Delete MessageReply w/QuoteDirect Link to This Post
so guys,what you think, can i put alittle resonator after the cat i have a little room for the resonator but it can and one before the muffler
under the axle,there it fits too. the resonator is about 8 inces long , so it fits,thats no problem, but the qestion is will it help reduce the sound
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marot
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Report this Post07-28-2013 07:51 AM Click Here to See the Profile for marotClick Here to Email marotSend a Private Message to marotEdit/Delete MessageReply w/QuoteDirect Link to This Post
i found a litlle midmuffler too ,would that be better
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I FAR I
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Report this Post07-28-2013 11:20 AM Click Here to See the Profile for I FAR ISend a Private Message to I FAR IEdit/Delete MessageReply w/QuoteDirect Link to This Post
Vibrant brand resonator should quiet things down to your satisfaction.

http://www.ebay.ca/itm/Vibr...em48475e0107&vxp=mtr

Or Ultra Quiet... http://www.ebay.ca/itm/New-...em3a82fdb4b3&vxp=mtr

[This message has been edited by I FAR I (edited 07-28-2013).]

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crashyoung
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Report this Post07-28-2013 11:25 AM Click Here to See the Profile for crashyoungClick Here to Email crashyoungSend a Private Message to crashyoungEdit/Delete MessageReply w/QuoteDirect Link to This Post
If your cat has pressed in plugs, I have had them burn out.

Have you had it up on a lift to look at it running?
Look for splits in the tubing or other leaks that can cause noise.
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marot
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Report this Post07-28-2013 06:39 PM Click Here to See the Profile for marotClick Here to Email marotSend a Private Message to marotEdit/Delete MessageReply w/QuoteDirect Link to This Post
i am planning for two ultra quiet vibrant resonator 1 after the cat and 1 before the muffler, or is just 1 enough,what you guys think of this
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marot
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Report this Post07-29-2013 07:07 AM Click Here to See the Profile for marotClick Here to Email marotSend a Private Message to marotEdit/Delete MessageReply w/QuoteDirect Link to This Post
hi guys, i looked at my cat and its small in size, is the original one big in size, maybe thats why its too loud
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marot
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Report this Post07-31-2013 02:52 PM Click Here to See the Profile for marotClick Here to Email marotSend a Private Message to marotEdit/Delete MessageReply w/QuoteDirect Link to This Post
so finaly we put a mid muffler (center silenser) it quited down the noise ,but its too restrictive while i am driving,the car is hesitating ,not responding well if i throttle, and we put it just before the muffler, should i put that of again and put a ultra quiet resonator instead of the centre silenser, i saw that the vibrant resonator was not restrictive it has the same diameter as the stock exhaust pipes of the fiero
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