Okay so I've had the car for a good while almost a year so I just wanted to know what do you guys recommend. I'm planning on going twin turbo some time after the kits start hitting the market but first I want to start changing some things up and first and foremost is my exhaust. I'm looking to get a catback but I dont know if it makes a difference in terms of performance if I were to get a single exhaust (one outlet with 3" piping) or get a true dual catback exhaust. what do you guys recommend ? Is there any hardcore proof which one is better with a turbo setup ?

 

Single exhausts are loud, I would get the GReddy EvoTT.

 

Get the EvoTT. If you search the forums, HR's have seen nice numbers with the EvoTT, which is made for TT setups.

 

Why would he get a TT if he is NA?

 

Do forced-induction first. Exhaust is trivial.

 

If you aren't TT, I think that havign too large diameter exhaust will take away torque and not really improve your hp by much. I know for certain you won't feel it (I certainly didn't with my Greddy Evo 2 ).

If you are going to get a 'system', make sure you have test pipes as those can yield the greatest power back of the engine block.

Otherwise, most NA bolt ons for the Z are wastes of money and for the amount that these companies sell these tubes and pipes, it's murder. $1,200 for a 'system'??? Get that crap outta here.

 

Since the stock Z is designed for single; even though the muffler is dual, the benefit is more profound in a single exhaust. I know i might get flamed at this, but this is due to my own experience. When i had HKS, i did not feel any difference in terms of power gains. But when i installed the JIC ST single, OMG, i could immediately feel the difference. It actually pulled harder, smoothly. If i were you, i would go with single.

 

if a supra doesnt need dual, why should you?

 

agreed

 

Reading comprehension owns you.

BTW, the Greddy EvoTT showed decent gains on the HR.

 

k, thanks guys your posts have given me a better direction .

 

Sorry, just don't buy into that at all. Just because the z comes with a 'single' from the factory doesn't mean you have to use a single to get the best results. I have a true dual and it yielded good gains, dyno proven. This 'feeling' of the seat of the pants crap is a bunch of garbage. Any exhaust whether it be a true dual or single can yield good gains, I prefer the dual myself. I just don't think the z looks right with a single on it on most cars.

Are you kidding? The supra is a straight 6, so it makes more sense to do a single on it.

 

Don't get smart, it doesn't suit you.

None-the-less, if you are going FI, whether single or twin turbo, have a custom exhaust made by a reputeable muffler shop and purchase some canisters / mufflers indepedently.

I managed a deal with TurboXS for the exhaust canister only for my TN set-up and had GT Motorsports fabricate the piping from the down pipe back.

As I have said before, the prices for exhaust 'systems' are rediculously high and insulting. Think about it, $1,200 for a bunch of pipes? It's not like there are any moving parts or gadgets on these things.

Just have one made for your car, dont buy an already built 'system'. They are HUGE rip offs. You can have a custom one made for half the cost and will more than likely be more effective.

 

A 3" single is good for 600whp regardless whether its a inline 6 Supra or a v6 350z.

 

The Nissan 240sx/ KA24DE powered cars make Great gains on 3.0 Catbacks. N/A with no powerloss in any part of the powerband. I'm sure you could go bigger on a VQ.

 

HKS True Dual FTMFW

 

Where did I say a 3" single sucks? I said that it makes more sense to do a single on a supra because it's a straight 6.

 

I must Agree with Changvi on this one. True both Dual and Single exhaust do show dyno gains, but a Single is HALF the weight of a Dual and a Single Ti will certainly weigh less than any SS single exhaust. I say this because i myself have tried a Borla True Dual, Helix Dual and now i run Apex'i Single EX Ti exhaust. Outa those 3 exhaust Apex'i FTW

Weight loss > Power gain
IMO

 

OP's planning on a TT. I'd recommend the HKS TRUE DUAL. It's light as hell, so I wouldn't worry about weight. Don't get the evott, cuz you're not FI yet. FI isn't just a newspaper that you just pick up at a news stand. You maybe stuck with the evott for a loong time. HKS will work nicely with a hks.

 

I wasn't arguing a single would weigh less, but the fact that the single is best because the z comes with a 'single' from the factory. Any well tuned exhaust will yield good gains. He also based all his assumptions on the butt dyno, and that is the worlds worst way to judge gains. If you are really all about the weight loss, time to strip down the car; sound deading, carpets, extraneous plastic, ac, power steering, etc. I just don't see the point in saving 10-15 pounds going single when a dual looks so much better with a stock rear bumper.