Another quick stillen exhaust review

Marcus Ryan · 09-25-2010, 04:09 PM

Installed stillen exhaust today, and I'm extremely pleased with the results. This is my first mod with the Z so I went ahead and did dyno runs before and after.

Car put down 261 bone stock and 280 after the installation on a dynojet at Jotech in Dallas. These numbers were the average of three runs before and after the install with actual highs of 266 before and 283 after. In light of the fact that this is Dallas at around 80 degrees while raining outside I thought this to be extremely impressive.

On average I gained 19 horsepower on a bone stock 40th Z with just stillen catback and nothing else.

So far as the sound goes it's actually pretty mellow. Not as loud as I expected but it has a nice rumble under a load.

Pics to come shortly...

Red370 · 09-25-2010, 04:28 PM

that seems to be the average gain for the first exhaust mod, high flow cats will net you about another 2-3, but will make the car sound much better. Glad you like the exhaust! Intakes and a tune will put you comfortably over the 300 mark.

Marcus Ryan · 09-25-2010, 04:38 PM

I know that's about standard but I remained a little skeptical until I saw it first hand.

Azroadster · 09-25-2010, 05:29 PM

I'm glad to see such impressive dyno results. I had the Stillen exhaust installed about a month ago and my butt dyno tells me that it did increase power, but I have not had the Z dyno'd. I should expect that my increase in power is similar to yours since my car was also stock before the exhaust. I agree with your assessment of the sound as well. It's is not offensive when cruising but has a great deep sound when the RPM's climb. I am very happy with mine. Congrats on the install!

AZ

09-25-2010, 04:09 PM	#1 (permalink)
Marcus Ryan Base Member Join Date: Mar 2010 Location: Dallas Posts: 77 Drives: 2010 370Z M6 40th Rep Power: 15	Another quick stillen exhaust review Installed stillen exhaust today, and I'm extremely pleased with the results. This is my first mod with the Z so I went ahead and did dyno runs before and after. Car put down 261 bone stock and 280 after the installation on a dynojet at Jotech in Dallas. These numbers were the average of three runs before and after the install with actual highs of 266 before and 283 after. In light of the fact that this is Dallas at around 80 degrees while raining outside I thought this to be extremely impressive. On average I gained 19 horsepower on a bone stock 40th Z with just stillen catback and nothing else. So far as the sound goes it's actually pretty mellow. Not as loud as I expected but it has a nice rumble under a load. Pics to come shortly... Last edited by Marcus Ryan; 09-25-2010 at 04:25 PM.

09-25-2010, 04:28 PM	#2 (permalink)
Red370 A True Z Fanatic Join Date: Jul 2009 Location: Kaiserslautern, Germany Posts: 4,391 Drives: your mom to church Rep Power: 295	that seems to be the average gain for the first exhaust mod, high flow cats will net you about another 2-3, but will make the car sound much better. Glad you like the exhaust! Intakes and a tune will put you comfortably over the 300 mark. __________________ 2011 Mustang 5.0 \| 3.55's \| Lethal Performance off road H-Pipe \| Magnaflow Muffler Delete \| JLT CAI/Bama tuned 417whp/ 404 ft/lbs Last edited by Red370; 09-25-2010 at 04:30 PM.

09-25-2010, 05:29 PM	#4 (permalink)
Azroadster Base Member Join Date: Jun 2009 Location: Arizona Posts: 195 Drives: 2009 370Z Yellow 7sp Rep Power: 15	I'm glad to see such impressive dyno results. I had the Stillen exhaust installed about a month ago and my butt dyno tells me that it did increase power, but I have not had the Z dyno'd. I should expect that my increase in power is similar to yours since my car was also stock before the exhaust. I agree with your assessment of the sound as well. It's is not offensive when cruising but has a great deep sound when the RPM's climb. I am very happy with mine. Congrats on the install! AZ __________________ AZ Roadster '09 Base\|Chicane Yellow\|TSW Nurburgrings\|Stillen CBE\|Eclipse AVN726E In Dash DVD/NAV\|Clear Bra\|H&R Spacers 15/20\|Hankook Ventus V-12's 275/35 & 305/30

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09-25-2010, 04:38 PM	#3 (permalink)
Marcus Ryan Base Member Join Date: Mar 2010 Location: Dallas Posts: 77 Drives: 2010 370Z M6 40th Rep Power: 15	I know that's about standard but I remained a little skeptical until I saw it first hand.