IS F (2008-2014) Discussion topics related to the IS F model

Whats the difference between borla cat back or rear section exhaust

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Old 03-22-13, 12:52 PM
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2012ISF
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Default Whats the difference between borla cat back or rear section exhaust

Is the sound different. What exactly is the difference. More hp?
Old 03-22-13, 12:59 PM
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Sello
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Cat back takes out the secondary cats which frees up horsepower..axle back eguals waste of money
Old 03-22-13, 01:00 PM
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Rear section is just a replacement for the mufflers we have and retains the midpipes which is pretty much a single pipe.

The Borla catback is a true dual replacement and yields much more power due to the removal of cats and piping size/efficiency.

Borla rear section is slightly louder than stock. Borla full exhaust is a few steps above the rear section but IMO still quiet.
Old 03-22-13, 01:35 PM
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VtotheJ
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Come to the NELOC meet tomorrow.. Arthur's steakhouse in North Brunswick @ 12pm... there is one guy who has Borla, he'll be there.
Old 03-22-13, 02:07 PM
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Look here:

http://www.borla.com/products/isf_20...rt__12656.html

and here:

http://www.borla.com/products/isf_20...rt__11765.html

Lou
Old 03-22-13, 07:48 PM
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tgui
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Originally Posted by Sello
Cat back takes out the secondary cats which frees up horsepower..axle back eguals waste of money
Axle back removes the crushed Y pipe. Source, I have one.

After that its just a noise maker.
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