Quote:
Originally Posted by Seneca
Im a newer owner of a 1986 911 and am interest in new exhaust system. Ive been looking at the FabSpeed exhaust with the cat cut out, if I do this system do I also have to install a new chip or am I all right with the stock chip?
thanks for your time, Bob Watkins Glen NY
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You certainly live in a great place!
What you do is going to depend an several things
what do you use the car for?
how much $ are you willing to spend?
how much noise do you want to put up w/?
other mads?
In general it's best to use a custom chip burned from #s generated on a dyno or from using an LM1 or such.
The Motronic does have a limited ability to compensate for minor exhaust changes though.
If you go to a full header setup a chip would certainly be best
Steve Wong has a great rep and also has some off the shelf chips that may be all you need,
911 Chips