For those who have already R&D exhaust note...

F1loco · 09-14-2010, 07:02 AM

I recently did a muffler delete, stock resonators and TP's and holy crap, the thing screams. I don't mind screaming, but only when I am screaming (5-7K), not 3k!! I ordered a couple of Magnaflow Bullets (hopefully goes on this weekend to give my ears a break) and wanted thoughts on putting stock CATs back on with the set up? I didn't notice much of a difference in swapping TPs for CATs, but when I axed that tin can in the rear, what a difference. For a V6, this thing is loud. I'm guessing the CATs would kill some of the rasp in the exhaust note, but I don't want to kill my nice gurgles and pops on decel....

corbin09 · 09-16-2010, 04:56 PM

Ok, I am going to try my best to answer this as I have done a few similar set ups.

1. the setup you have is extremely loud I ran it and it felt like it was going to rattle my hatch off in the 2.6k rpm area. The resonators do little to no help.

2. The magnaflow bullets will not kill the sound much at all. It will probably make it slightly deeper, but it will still be loud as HELL.

3. If you but Cats on, it will quiet down a little and you wont loose your gurles or pops. I liked the way straight pipes with cats sounded on my car tbh.

All in all, the setup was still loud, but a little more modest and deeper with the cats on. I have since switched setups, but I hope this helped a little.

BTW all of these setups will yeild very close to the same gains. Even with Test Pipes. PM me if you have any other questions

F1loco · 09-16-2010, 07:36 PM

Thanks, I think Ill throw the CATs back on and see how it goes. The CATless rasp is crazy after 3500rpm. Hoping the Magnaflow would mellow it a bit. I'll post some vids when it's done. For now I have to ease on the throttle in every municipality I drive through...

. That ain't no fun....

F1loco · 09-17-2010, 06:42 AM

Good to hear I won't loose the gurgles and pops either with CATs on as well...you know, if you design a car to be a sports car, why make the exhaust note sound like a Lexus?

spearfish25 · 09-17-2010, 10:09 PM

Replacing the stock cats will make it slightly quieter but it's still very loud. The overrun sounds will still be very noticeable. Even with the stock cats, my muffler delete was still giving me headaches after 20min drives. I also was avoiding revving over 4k because it became deafening.

daleks · 09-17-2010, 10:29 PM

I know what kind of exhaust would be just perfect.

gaveup · 09-19-2010, 06:13 PM

How is it test pipes/ hfc gain about 15whp and you say you feel no difference?

huh?

F1loco · 09-19-2010, 08:45 PM

No, butt dyno says there is gain, especially around mid range and up....

F1loco · 09-19-2010, 08:45 PM

Quote:

Originally Posted by daleks

I know what kind of exhaust would be just perfect.

JAJAJA....yeah...I know....

roplusbee · 09-20-2010, 09:51 AM

That's wassup...........

09-14-2010, 07:02 AM	#1 (permalink)
F1loco Base Member Join Date: Jul 2010 Location: Sunshine Posts: 203 Drives: 09 Nismo Rep Power: 14	For those who have already R&D exhaust note... I recently did a muffler delete, stock resonators and TP's and holy crap, the thing screams. I don't mind screaming, but only when I am screaming (5-7K), not 3k!! I ordered a couple of Magnaflow Bullets (hopefully goes on this weekend to give my ears a break) and wanted thoughts on putting stock CATs back on with the set up? I didn't notice much of a difference in swapping TPs for CATs, but when I axed that tin can in the rear, what a difference. For a V6, this thing is loud. I'm guessing the CATs would kill some of the rasp in the exhaust note, but I don't want to kill my nice gurgles and pops on decel....

09-16-2010, 07:36 PM	#3 (permalink)
F1loco Base Member Join Date: Jul 2010 Location: Sunshine Posts: 203 Drives: 09 Nismo Rep Power: 14	Thanks, I think Ill throw the CATs back on and see how it goes. The CATless rasp is crazy after 3500rpm. Hoping the Magnaflow would mellow it a bit. I'll post some vids when it's done. For now I have to ease on the throttle in every municipality I drive through.... That ain't no fun....

09-17-2010, 10:09 PM	#5 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1856	Replacing the stock cats will make it slightly quieter but it's still very loud. The overrun sounds will still be very noticeable. Even with the stock cats, my muffler delete was still giving me headaches after 20min drives. I also was avoiding revving over 4k because it became deafening. __________________ 2013 Cadillac V-Wagon, RIP Z

09-20-2010, 09:51 AM	#10 (permalink)
roplusbee A True Z Fanatic Join Date: Dec 2009 Location: Killeen, TX Posts: 2,360 Drives: 2007 350Z NISMO Rep Power: 22	That's wassup........... __________________ 2007 350Z NISMO #0618: Zerolift \| UPREV \| F.I. \| Greddy \| Competition Clutch \| Injector Dynamics \| Aeromotive \| Pioneer \| JL

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09-16-2010, 04:56 PM	#2 (permalink)
corbin09 Track Member Join Date: Jun 2009 Location: Dallas tx Posts: 665 Drives: 370z Rep Power: 279	Ok, I am going to try my best to answer this as I have done a few similar set ups. 1. the setup you have is extremely loud I ran it and it felt like it was going to rattle my hatch off in the 2.6k rpm area. The resonators do little to no help. 2. The magnaflow bullets will not kill the sound much at all. It will probably make it slightly deeper, but it will still be loud as HELL. 3. If you but Cats on, it will quiet down a little and you wont loose your gurles or pops. I liked the way straight pipes with cats sounded on my car tbh. All in all, the setup was still loud, but a little more modest and deeper with the cats on. I have since switched setups, but I hope this helped a little. BTW all of these setups will yeild very close to the same gains. Even with Test Pipes. PM me if you have any other questions

09-17-2010, 06:42 AM	#4 (permalink)
F1loco Base Member Join Date: Jul 2010 Location: Sunshine Posts: 203 Drives: 09 Nismo Rep Power: 14	Good to hear I won't loose the gurgles and pops either with CATs on as well...you know, if you design a car to be a sports car, why make the exhaust note sound like a Lexus?

09-17-2010, 10:29 PM	#6 (permalink)
daleks Enthusiast Member Join Date: Apr 2010 Location: St. Louis Posts: 424 Drives: 2011 Evo X MR Rep Power: 15	I know what kind of exhaust would be just perfect.

09-19-2010, 06:13 PM	#7 (permalink)
gaveup Enthusiast Member Join Date: Aug 2010 Location: Tamarac FL Posts: 324 Drives: 10 Nissan 370Z MB M6 Rep Power: 180	How is it test pipes/ hfc gain about 15whp and you say you feel no difference? huh?

09-19-2010, 08:45 PM	#8 (permalink)
F1loco Base Member Join Date: Jul 2010 Location: Sunshine Posts: 203 Drives: 09 Nismo Rep Power: 14	No, butt dyno says there is gain, especially around mid range and up....