As the title suggests... I have an 06 practically stock other than a pop charger and I had a true dual exhaust installed recently and I was wondering if this was actually hindering performance? I plan to keep it NA.

 

what size pipes? As long as the pipes aren't too big and the design and craftsmanship isn't HORRIBLE you should not lose power with a true dual

 

no, it won't

 

2.5

 

Probably. You need more back pressure and some rasp.

 

 

exhaust is fine man, don't worry about anything.

 

 

How does "Exhaust Depot True Dual Exhaust " look like? Ebay? How was the fitment? Thanks

 

Do you feel like your performance is compromised? I mean...you wouldn't have started this thread if you felt there was an improvement.

Did you ever do any dynos of your stock? Dyno would be the best way to measure if you actually gained or lost or stayed the same.

 

It depends on how the exhaust is designed. So yes, its possible. I've tested prototypes that actually lost performance. What system do you have?

Every production system on the market (that I know of) only improve performance.

 

if its a true dual you will lose some low / mid range and gain more up top. I personally don't like TD on a daily driver.

 

 

really? is that true?

so if im not planning on going f/i. should i just go with a regular catback>?

is it because of too much air flow?

cuz the hks is smaller than most 2.5 TD exhausts. so the hks would be the best buy for a TD exhaust correct?

sorry if im asking too many questions, but im just in the market for an exhaust. and i want something loud haha

 

yeah, most exhausts for some reason, daily driving, the car doesn't feel as strong but of course, dyno'd at WOT, there is HP/TQ gain so the debate is endless. So yes, it's most likely possible that exhaust makes it seem like there is power loss when not shifting at redline, which is my case and i'm on my 4th exhaust.

 

+1 I have noticed the same thing. I just the other day went from stock on my HR to a Stillen True Dual and it seems low end isn't as strong, but jump on it on the highway and there is noticable gains, just from the feel w/o dynoing it. my 2 cents

 

you have to kind of break it down, and look at it.
if your running a single 3" system, your getting 3" of flow. its that simple. this is good for up to around 450hp.
when you run TD, if you have 2.5" on both sides (why wouldnt it be the same ), thats 5" of exhaust flow. and a lot less back pressure.

this is what i used to tell my customers. if you want torque, stay single, but big. if your looking to go 200mph over a long distance, go dual. when you go dual, unless your pushin over 500 at the crank, your losing backpressure with duals, thus losing the torque. but you will gain horsepower.

if you want the power from true duals on a stock Z, you might try a gear change as well. that could counteract the loss of tq. hope it helps.

 

youre saying if youre n/a, and u wanna gain the tq and hp, go single? and single as in single piping but dual mufflers.

 

yeah basically. but im not too sure that two mufflers make more of difference than one muffler with two pipes. the main restriction in a stock muffler is all of the baffles that cancel out the noise. so i think your safe with one muffler. thats the way im gonna go.

 

joe, i just reread your post. if you want it to be really loud, make sure you do away with the resonator. and from looking under my car, the stock exhaust looks big enough to handle subtle mods, imo. if its looks you want, those stainless systems are great. but if your not gonna do car shows, just take out the resonator and buy a muffler for you stock system.