Quote:
Originally Posted by 50shadesofhockenheim
How does it sound bad? I don't have any vibrations or rasp
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In order to help get a handle on issues the various options need to be stated.
do you mind listing what is in your system?
- down pipes: OE , HF CATs, CATless
- Mid pipe: resonated or not
- back box?
I have done tons of exhaust work over the years, including working with a system fabricator doing test fitting etc.
In my experience the single biggest contributor to rasp is running HF CATs, or CATless.
To a lessor degree resonators design/elimination.
Vibrations, (especially those that are intermittent) are usually install related.
One of the biggest things that installers miss is the shift rearwards of the system with heat.
I have come across simple things like length of screws that make contact, only when hot.
I've also seen the same situation but opposite result, vibration when cold but goes away when hot.
In a nut shell there are lots of variables in play with a system that is designed within close tolerances and it doesn't take much to have an issue.