CNT Racing V2 370z Catback Exhaust (Sound clip, Pictures included)

Ages · 11-27-2011, 09:50 PM

system sounds good but w/o Dyno proven gains theres no way i can buy this>< Butt Dynos are not reliable. was it a big butt? a small butt? does it giggle? too many variables!

stells370 · 12-02-2011, 12:24 PM

Quote:

Originally Posted by busa37z

Received exhaust today, well packaged no damage, inventoried complete minus 2 bolts and nuts. Install took hour took my time. Took for test drive, and man paired with cnt hfc, they sound deep and mean. Overall for price exhaust is excellent.

glad you decided to go with it

hope your ride in my car made it easier to pulL THE TRIGGER

busa37z · 12-03-2011, 08:19 AM

Yessir thats what did it!

kevr6 · 12-03-2011, 08:45 AM

Quote:

Originally Posted by Ages

system sounds good but w/o Dyno proven gains theres no way i can buy this>< Butt Dynos are not reliable. was it a big butt? a small butt? does it giggle? too many variables!

I don't have a graph, but I did a Dyno run with HFCs and CAIs and got 287 at the wheels with 85 degree weather using this exhaust.
I have since gotten a F.I. exhaust and got 302 at the wheels with 65 degree weather. (note: running 20" wheels)

batboyvaj · 12-05-2011, 09:21 PM

There's a wierd rattle with mine. I relooked under the car to see if the exhaust was touching the cross member, but there seems to be at least 1/2 in of clearance so i just do see how that is hitting. but it does look really close to my sway bar. Anyone having any issues with contact on the rear sway bar?

kevr6 · 12-05-2011, 10:10 PM

Quote:

Originally Posted by batboyvaj

There's a wierd rattle with mine. I relooked under the car to see if the exhaust was touching the cross member, but there seems to be at least 1/2 in of clearance so i just do see how that is hitting. but it does look really close to my sway bar. Anyone having any issues with contact on the rear sway bar?

Had that problem. Took forever to adjust do as not to hit. It never truly went away.

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daisuke149 · 12-05-2011, 10:14 PM

Quote:

Originally Posted by kevr6

Had that problem. Took forever to adjust do as not to hit. It never truly went away.

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it was hitting my sway bar really bad. had it adjusted, but then it was hanging too low. tried alot of things to make it not hit the sway bar but when i took hard corners with the compression of the sway it would still hit.

since it sounded like rocks being grinded between 2 rotors, i just took the exhaust off.

buddahson · 12-06-2011, 10:36 AM

That's odd, I have had no problems. This wouldn't fix the sway bar issue, but did you other guys remove the metal heat guard from above the passenger side muffler? The exhaust will definitively rub that if its still there.

daisuke149 · 12-06-2011, 12:07 PM

Quote:

Originally Posted by buddahson

That's odd, I have had no problems. This wouldn't fix the sway bar issue, but did you other guys remove the metal heat guard from above the passenger side muffler? The exhaust will definitively rub that if its still there.

yup. It was removed. Installation was not the issue at all. look at your exhaust

you can see the driver side piping angle out more than the passenger side.

kevr6 · 12-06-2011, 06:30 PM

Quote:

Originally Posted by daisuke149

yup. It was removed. Installation was not the issue at all. look at your exhaust

you can see the driver side piping angle out more than the passenger side.

Yep, Mine hit the sway bar then after adjusting it would hit the subframe reinforcement. It drove me nuts so I removed it and got yet another exhaust!
I sold it and forwarned the buyer it will take awhile to adjust. He didn't car since he was tracking his car.

busa37z · 12-06-2011, 07:35 PM

I just installed this exhaust and I have totally no issues. No rubbing or any issues with subframe or swaybar. Exhaust sounds great, will dyno in a few weeks. Sorry for all those who had issues!

ERZperformance · 12-06-2011, 09:54 PM

Anyone try using stronger urethane exhaust hangers on the two hangers holding up the mid pipe with two resonators. Looks like during driving and road conditions it will cause the exhaust to shift from side to side causing it to hit your sway bar.

Ages · 12-06-2011, 10:22 PM

Quote:

Originally Posted by kevr6

I don't have a graph, but I did a Dyno run with HFCs and CAIs and got 287 at the wheels with 85 degree weather using this exhaust.
I have since gotten a F.I. exhaust and got 302 at the wheels with 65 degree weather. (note: running 20" wheels)

So the only thing you changed was CnT for FI and gained than much power? if so it seems this does not do much better than stock. that would explain the lack of dyno numbers from the makers though. thanks for the info. looking like its a toss up on the ARK grip VS FI for me atm.

MattP725 · 12-06-2011, 10:32 PM

Love my CNT (not their packaging but that's another issue). I dyno'd some good numbers with the exhaust, hfc, intake and tune but don't have a baseline so can't say anything about gains. Plenty of compliments on the sound... it is aggressive yet not annoying. Also no fitment issues but I did remove part of the heat shield and a box on the passenger side that helped route some of the cables.

kevr6 · 12-06-2011, 11:26 PM

Quote:

Originally Posted by Ages

So the only thing you changed was CnT for FI and gained than much power? if so it seems this does not do much better than stock. that would explain the lack of dyno numbers from the makers though. thanks for the info. looking like its a toss up on the ARK grip VS FI for me atm.

The key to this exhaust is the price.can't beat the price.

Sent from my EVO4g via Tapatalk Forum App

12-06-2011, 10:36 AM	#143 (permalink)
buddahson Enthusiast Member Join Date: Jul 2009 Location: Boulder, CO Posts: 272 Drives: 09 370z, 07 R6 Rep Power: 16	That's odd, I have had no problems. This wouldn't fix the sway bar issue, but did you other guys remove the metal heat guard from above the passenger side muffler? The exhaust will definitively rub that if its still there. __________________ Thanks for the sig EazyD.

12-06-2011, 09:54 PM	#147 (permalink)
ERZperformance A True Z Fanatic Join Date: May 2009 Location: Hayward Posts: 3,015 Drives: Nissan GTR Rep Power: 22	Anyone try using stronger urethane exhaust hangers on the two hangers holding up the mid pipe with two resonators. Looks like during driving and road conditions it will cause the exhaust to shift from side to side causing it to hit your sway bar. __________________ http://www.cntracing.com http://www.ERZperformance.com 800-363-8599 Last edited by ERZperformance; 12-06-2011 at 09:57 PM.

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11-27-2011, 09:50 PM	#136 (permalink)
Ages Base Member Join Date: Oct 2011 Location: MA Posts: 184 Drives: 11 370Z SP MT Gunmet Rep Power: 14	system sounds good but w/o Dyno proven gains theres no way i can buy this>< Butt Dynos are not reliable. was it a big butt? a small butt? does it giggle? too many variables!

12-03-2011, 08:19 AM	#138 (permalink)
busa37z Base Member Join Date: Dec 2010 Location: Germany Posts: 63 Drives: 09 Red 370Z CSPT M6 Rep Power: 15	Yessir thats what did it!

12-05-2011, 09:21 PM	#140 (permalink)
batboyvaj Base Member Join Date: Jun 2011 Location: mn Posts: 111 Drives: 2011 370z Rep Power: 14	There's a wierd rattle with mine. I relooked under the car to see if the exhaust was touching the cross member, but there seems to be at least 1/2 in of clearance so i just do see how that is hitting. but it does look really close to my sway bar. Anyone having any issues with contact on the rear sway bar?

12-06-2011, 07:35 PM	#146 (permalink)
busa37z Base Member Join Date: Dec 2010 Location: Germany Posts: 63 Drives: 09 Red 370Z CSPT M6 Rep Power: 15	I just installed this exhaust and I have totally no issues. No rubbing or any issues with subframe or swaybar. Exhaust sounds great, will dyno in a few weeks. Sorry for all those who had issues!

12-06-2011, 10:32 PM	#149 (permalink)
MattP725 A True Z Fanatic Join Date: May 2011 Location: Toms River, NJ Posts: 1,904 Drives: 2010 40th Rep Power: 17	Love my CNT (not their packaging but that's another issue). I dyno'd some good numbers with the exhaust, hfc, intake and tune but don't have a baseline so can't say anything about gains. Plenty of compliments on the sound... it is aggressive yet not annoying. Also no fitment issues but I did remove part of the heat shield and a box on the passenger side that helped route some of the cables.