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Isn't it the same with the JoeZ exhaust system, in terms of passing smog?
Yup same thing in terms of smog.

Also noticed on the Borla site some updated information and the exhaust is slightly different than those we have seen thus far. The borla mufflers have dual outlets on each to match up with the exhaust diffusers in the bumper, they use a single resonator vs two separate ones and the x pipe looks pretty beefy.
 

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Thanks for the post Chirs, but I think we're all waiting on a dyno.

For anyone with the information, how does the diameter and weight compare to the joez exhaust?
The JoeZ exhaust is 64lbs. Borla is claiming 54lbs.
 

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I ordered the Borla offroad system today for my IS-F, the stainless catback plus Xpipe. I live in West Palm Beach, FL and there is a company in Boynton Beach called 21st
Century Exhaust that has it, they are a wholesaler. Got it for $920 and it will take about 7 days to get here........i will keep you posted.
Very cool. You planning to do a before and after dyno?
 

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Were these SAE corrected results!? I can't believe it only gave you 10hp considering it's almost identical to the PTS JoeZ series. 2.5" tubing, x pipe, high flow mufflers etc. Something doesn't sound right. Also not sure how many runs you did on the dyno buy typically the 3rd and 4th consecutive run will yield the highest numbers. So if you took your highest baseline and compared to only your first run with the new exhaust I could then see where you only showed a 10hp gain. Hell my first run on the dyno with the new exhaust showed only 3hp gain, but by the 3rd and 4th runs I was at the 20 hp gained mark.
 
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