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4" to 3" Borla?

Old Apr 17, 2009 | 01:12 PM
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Question 4" to 3" Borla?

I am making the car a bit more streetable. Currently it is a high 10-second NA car. Running a 4" muflex system, LTs, and no cats. I would like to put a Borla catback system. How much will I give up if any by doing this?
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Old Apr 17, 2009 | 01:13 PM
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not much. if youre truely worried about giving up power find a system you like the sound of and put an electric cutout on the end of each header for when you want power.
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Old Apr 17, 2009 | 01:26 PM
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Its a 383 MS4 with big heads - if this makes a difference.
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Old Apr 18, 2009 | 09:11 PM
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Does your mufflex catback have the spintech muffler?
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Old Apr 18, 2009 | 09:13 PM
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And which ORY do you have?
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Old Apr 19, 2009 | 11:13 AM
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Originally Posted by smit2732
Does your mufflex catback have the spintech muffler?
Yes, Spintech

And which ORY do you have?
Custom 3" with v-clamps to match a set of competition step headers I have.

Most likely will not match anything else.
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