AAM Competition S-Line Short Tail Axle-Back Exhaust

Footloose301 · 12-28-2010, 11:49 AM

Quote:

Originally Posted by christian370z

I don't see how it can negatively impact power over the stock muffler. The level of restriction in the exhaust goes like this in my opinion (1 being the most):

1) Stock catalytic converters
2) Stock Y pipe
3) Stock muffler

I am sure these will provide decent gains since they are eliminating a pretty convoluted stock muffler design.

Seems to be that the straight thru design of AAM axle backs would be the same as just removing the stock muffler thus decreasing torque...? Perhaps I'm wrong and I am just pulling this out of my *** but idk. I realize te stock muffler is restrictive but axle-backs (IMHO) seem like they would take away too much back pressure....... It would be nice if a few people could describe how the butt dyno feels or an actual dyno.

Kastley85891 · 12-28-2010, 12:42 PM

^Depends on your entire exhuast path - thats why I run a Y pipe ;-)

GZ3 · 12-28-2010, 02:57 PM

man some dynos need to surface soon! sounds really good, cant stop replaying

christian370z · 12-28-2010, 05:59 PM

Quote:

Originally Posted by Footloose301

Seems to be that the straight thru design of AAM axle backs would be the same as just removing the stock muffler thus decreasing torque...? Perhaps I'm wrong and I am just pulling this out of my *** but idk. I realize te stock muffler is restrictive but axle-backs (IMHO) seem like they would take away too much back pressure....... It would be nice if a few people could describe how the butt dyno feels or an actual dyno.

You are right on that theory, I do believe that sticking to 2.5" exhausts on either bank is the best balance between flow and retaining some torque on these cars (at least N/A). If the pipe diameter was larger, for instance a 3" diameter, you would definitely feel a loss in torque.

But, the butt dyno knows all and that is ultimately what matters!

VQinside · 12-30-2010, 01:01 AM

potential client still waiting for decibels here

Vince's Red-Z · 01-01-2011, 11:56 PM

Wazzup,
Hey I have stupid question, are the S-Line Short Tail sold in pairs? And is the promotion code still valid? Thanks. P.s. and any performance improvments or it's just more a noise maker (which I like). Thanks.

GZ3 · 01-03-2011, 09:16 PM

yes pairs

any updates or dynos?

Kastley85891 · 01-03-2011, 09:33 PM

Show us Zee muffled options... ;-)

Vince's Red-Z · 01-03-2011, 09:53 PM

Quote:

Originally Posted by Kastley85891

^Depends on your entire exhuast path - thats why I run a Y pipe ;-)

Hey,
You only have a Y pipe with stock muffler? If yes, is the "Y" it an improvement? Or loss of low end torque? Thx.

Kastley85891 · 01-03-2011, 10:21 PM

I run a Y with TP's, previously, just the Y pipe and it felt better in every way.

Vince's Red-Z · 01-03-2011, 10:55 PM

Quote:

Originally Posted by thezmonster

it should be louder and Im running with stock cats and stillen G3 intakes

Yo, If you don't mind sharing what you still think of your AAM? Was there a loss in low end torque? Do you think these would be too loud (like a Harley starting at 3am - LOL)? Thx. P.S. Your car sounds wicked!

VQinside · 01-04-2011, 02:08 AM

Quote:

Originally Posted by Kastley85891

Show us Zee muffled options... ;-)

+1000
muffled versions would be great! something like 92 decibels!

the muffled versions would be great for that price.

Vince's Red-Z · 01-04-2011, 01:30 PM

Quote:

Originally Posted by Vince's Red-Z

Yo, If you don't mind sharing what you still think of your AAM? Was there a loss in low end torque? Do you think these would be too loud (like a Harley starting at 3am - LOL)? Thx. P.S. Your car sounds wicked!

Got official answer to my own question:

>>Yes.* Horsepower is improved, but not dramatically.* The exhaust was designed to reduce weight, and improve the sound.* I can email you dyno graphs when I have them available.<<

GZ3 · 01-04-2011, 02:13 PM

Quote:

Originally Posted by Vince's Red-Z

Got official answer to my own question:

>>Yes.* Horsepower is improved, but not dramatically.* The exhaust was designed to reduce weight, and improve the sound.* I can email you dyno graphs when I have them available.<<

are you otherwise stock? i would like to see the dyno too please sir thank you

younter · 01-04-2011, 04:57 PM

Any one give me any suggestion of either get the AAM short tail.. or go to a muffler shop and do a custom one? Any suggestion? I just want to have the loud sound..to be honest.. I think this product is a bit high cost...

12-28-2010, 12:42 PM	#92 (permalink)
Kastley85891 A True Z Fanatic Join Date: Nov 2009 Location: ATX 370 - Sold Posts: 1,149 Drives: 2003 Wagon Rep Power: 18	^Depends on your entire exhuast path - thats why I run a Y pipe ;-) __________________ Boosted V8 hunter 2850 lbs and 375WHP

12-28-2010, 02:57 PM	#93 (permalink)
GZ3 A True Z Fanatic Join Date: Dec 2009 Location: SATX Posts: 3,296 Drives: Z Rep Power: 22	man some dynos need to surface soon! sounds really good, cant stop replaying __________________ 09 GT-R 12' 370Z 7AT HANDED DOWN 12'+13' 5.0 SOLD

01-01-2011, 11:56 PM	#96 (permalink)
Vince's Red-Z Base Member Join Date: Sep 2010 Location: Wylie, TX Posts: 71 Drives: 2010 370Z Red Sport Rep Power: 15	Wazzup, Hey I have stupid question, are the S-Line Short Tail sold in pairs? And is the promotion code still valid? Thanks. P.s. and any performance improvments or it's just more a noise maker (which I like). Thanks. __________________

01-03-2011, 09:16 PM	#97 (permalink)
GZ3 A True Z Fanatic Join Date: Dec 2009 Location: SATX Posts: 3,296 Drives: Z Rep Power: 22	yes pairs any updates or dynos? __________________ 09 GT-R 12' 370Z 7AT HANDED DOWN 12'+13' 5.0 SOLD

01-03-2011, 09:33 PM	#98 (permalink)
Kastley85891 A True Z Fanatic Join Date: Nov 2009 Location: ATX 370 - Sold Posts: 1,149 Drives: 2003 Wagon Rep Power: 18	Show us Zee muffled options... ;-) __________________ Boosted V8 hunter 2850 lbs and 375WHP

12-30-2010, 01:01 AM	#95 (permalink)
VQinside Base Member Join Date: Oct 2010 Location: Atlanta GA Posts: 109 Drives: 2010 370Z Rep Power: 15	potential client still waiting for decibels here

01-03-2011, 10:21 PM	#100 (permalink)
Kastley85891 A True Z Fanatic Join Date: Nov 2009 Location: ATX 370 - Sold Posts: 1,149 Drives: 2003 Wagon Rep Power: 18	I run a Y with TP's, previously, just the Y pipe and it felt better in every way. __________________ Boosted V8 hunter 2850 lbs and 375WHP

01-04-2011, 04:57 PM	#105 (permalink)
younter Enthusiast Member Join Date: May 2010 Location: Canada Posts: 479 Drives: 10 370Z 40th SOLD Rep Power: 15	Any one give me any suggestion of either get the AAM short tail.. or go to a muffler shop and do a custom one? Any suggestion? I just want to have the loud sound..to be honest.. I think this product is a bit high cost...

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