The stillen is discussed at length, some info on Borla, the cool tt has GReddy

Is there a thread that talks about which one is 'best'?

Are they somewhat equal in their performance gains?

How does sound compare? etc, etc...

 

someone posted the dyno results for the stillen cat back. i'm not sure who posted or what thread title it is under, but i remember seeing it. does someone know?

 

I personally like teh sound of the stillen more...... I haven't done any research yet on the preformance gains of each -- hopfully someone will help out

 

Which one's "best" depends on your personal priorities. I've noticed on most forums the one that's "best" is usually the one that was bought by that particular person.

That said, I chose the Stillen Sedan exhaust as it was the one that most closely met my priorities.

I've attached their R&D torque and hp charts. Admittedly, the base line number's are low, but the plot duplicates exactly how my car acted with the stock exhaust system. I'm sure you'll note there's a big difference between the baseline and exhaust system dyno dates. Also note the jagged base line plot from 2000 rpm to 3200rpm. This may be torgue converter slip.


DaveO
2003 G35 Sedan - DP / Willow / AT / Premium / Sport
350Z Engine Cover, T-Stat & Air Duct / Stillen CAI
GG 7-Wire H-G Kit / TechnoSquare ECU / E-Fans
Street Edge TC / B&M Cooler / Stillen Exhaust

187229-Stillen Sedan Exhaust Torque.JPG

 

Here's the HP Dyno.


DaveO

2003 G35 Sedan - DP / Willow / AT / Premium / Sport
350Z Engine Cover, T-Stat & Air Duct / Stillen CAI
GG 7-Wire H-G Kit / TechnoSquare ECU / E-Fans
Street Edge TC / B&M Cooler / Stillen Exhaust

187235-Stillen Sedan Exhaust HP.jpg

 

DaveO,

Am I reading that right? Did your stock Sedan (Auto?) pull about 203 HP and 202 lbs/Trq? If you multiply that by 1.25 for an auto's drive train loss...that's not even 255 hp or trq?

Also, it looks like the stillen exhaust gave you a whopping 20 HP and Tq addition...is this correct?

John
03.5 G35 14.6 @ 95
02 Maxima SE 14.5 @ 95 (Wife's)
87 Mustang GT 13.2 @ 107

 

Ok. I own the Stillen exhaust so I have no axe to grind against them, but that dyno ladies and gentlemen is the very definition of HOME COOKIN'.

--Steve

 

The dyno was done on either Stillen's test car or Alex's personal Sedan. I don't really know which one. I can say that my car now has a lot more dyno-butt torque and hp with the Stillen Exhaust.


DaveO
2003 G35 Sedan - DP / Willow / AT / Premium / Sport
350Z Engine Cover, T-Stat & Air Duct / Stillen CAI
GG 7-Wire H-G Kit / TechnoSquare ECU / E-Fans
Street Edge TC / B&M Cooler / Stillen Exhaust

 

I can say the same for the Borla, good butt-dyno results.

 

whats butt-dyno?

 

<blockquote><font class="small">In reply to:</font><hr>

whats butt-dyno?

<hr></blockquote>It's that notoriously unreliable data that your butt receives about HP changes in response to mods. ie. that feeling in your backside that your car seems faster or slower when you step on it. Of course, things like a more aggressive sound from your exhaust makes the car seem faster and your butt-dyno can interpret this as an increase in horse-power! All goes to show that your brain and your butt are inter-connected![img]/w3timages/icons/laugh.gif[/img]

<font color=blue>GroundingGear™ Equipped </font color=blue>

 

I love the Stillen cat back exhaust. I don't know about the Borla, but the Stillen makes a deep soft tone rumble when down shifting or shifting up between gears. Sounds really great in a tunnel with the echos reverberating through. Remember it is a good idea to tune or reprogram your ECU chip if you get the Stillen exhaust. The instructions on how to do this is in one of the forums.

 

Oh yeah, tunnels are wicked fun with my system [img]/w3timages/icons/tongue.gif[/img]

"All that's necessary for the forces of evil to win in the world is for enough good men to do nothing.”
Edmund Burke

G35 6mt

 

"Remember it is a good idea to tune or reprogram your ECU chip if you get the Stillen exhaust."

Sixgearsedan: I think you meant to say reset your ECU right? There are only a few shops around that can reprogram our ECUs, Technosquare to name one. A how to on reprogramming the ECU would be way beyond the scope of this forum.

04' G35S 6MT Ivory Pearl, Willow, Premium

 

My G-Tech confirmed my dyno-butt readings conclusively.


DaveO - 2003 G35 Sedan / DP / Willow / AT / Premium / Sport
350Z Engine Cover, T-Stat & Air Duct / Stillen CAI
GG 7-Wire H-G Kit / TS ECU / E-Fans
Street Edge TC / B&M Cooler / Stillen Exhaust