mattsta0026

Im looking to put exhaust on my 2008 z. I already have the stillen gen 3 intake system on the car. I was told to put headers, test pipes and exhaust i was going to have to get the car tuned or i would loose power instead of gain. Someone that has done these things please point me in the right direction. It makes sense that a tune would be better but is it worth the extra money. Im going with stillen headers z1 test pipes and stillen dual exhaust.

Entaille

iTrader: (16)

ecu flash and tune is probably the best mod you can do for your car - and you'd be silly not to get it tuned after all the mods, you'd be running lean

look into a local osiris tuner when you are ready.

mattsta0026

do u think going with the gen 3 was foolish. many say the stock intakes are better

Entaille

iTrader: (16)

stillen gen 3 intakes or injen long tube intakes are great for the HR - proven gains.

mattsta0026

its the stillen gen 3. i has a better sound for sure since the mod. and it seems to have gained some hp. but i wasnt sure if it was the smart thing for the long run because i see alot of people staying with stock for hp reasons. thanks for the help

NismoZ_840

iTrader: (3)

Pretty sure the stock headers are pretty much optimized as well on the HR. Can someone back me up on this?

temoku

yea i was gunna say the same. stock headers are equal length tubes. seems like it'd b a lot of money and work for little or no gains if you replaced them

temoku

and who cares if the stock intakes are better, gotta have that sound! i have the stillen gen 1 they sound good but not as good at the JWT did on my G35

sumone812

iTrader: (1)

a buddy of mine has the stillen exhaust and it's pretty quiet. Not sure if you want that or not. I'm more for a throatier sound myself so I installed the hks hi-power.

sumone812

iTrader: (1)

I'm having a simliar problem with my z. I installed berk hfc's, intake, and hks exhaust and now my cel is on and the z is running a little crappy. I was gonna by the Cobb Accessport and tune it, any suggestions?

tiguy99

iTrader: (3)

Reset your ECU before you head to Cobb. I have the same setup... HFCs, ztube intake and F.I Exhaust and reset the ECU after each addition..never got a CEL or funny acting car.

Its worth looking into

Nismo 78

iTrader: (10)

I've got the same set as well. I just placed an order for the Cobb AP along with a set of Berk HFC's.

arsey51

iTrader: (5)

I went with INVIDIA Gemini dual cat-back, and I have the JWT Dual intake. I got my Cobb and changed maps this weekend. Loaded Stage 2 map and went from 244 to 262 on a Dynamics Dyno. Air/Fuel ratio on the rich side, needs additional tweaking, but not bad for plug and play.

acharney

The stock headers are not equal length from what I remember, I have them sitting in a box at home and will check tonight when I get home to verify...

You will gain a little with new headers (I would say between 8-12 whp), but I'm not saying the cost justifies it. I went with the Stillen headers and did the Stillen gen 3 intakes at the same time and had some good gains between the two (30whp), and then did a tune which gained another 15whp (Uprev dyno tune). I am very happy with my mods. You can read about my experience with it all here if you want: https://my350z.com/forum/vq35hr/4597...or-vqhr-3.html