I got greedy and now have one set of dual exit exhaust then got meself a single exit. What I wanna know is there any real advantage of having a single over the dual exit as it was originally designed with.

 

Only thing I can think of is that single exit is lighter but since your running both exhausts exits down one pipe you have a slight increase in back pressure? Not sure what I'm going on about now so hopefully someone else can tell me otherwise! :mac1: :hyper:

Fortunately i hav a friend who is in contact with a few of the big power companies in japan such as hks, jun, TRD, Trust and Trial. They say that to get big power out of turbo cars u need as close to zero back pressure as possible so the engine can get out all the waste gas and get fresh straight in. The kakimoto system ive got on mine is one of the best power givers on the market and thats coming from the experts in japan. As far as nissan are conserned when they designed the car they had to consider noise levels, emissions and economy. So there we go (hope i dont sound like i no-it-all coz i dont mean to!!)

Yep that may be true but as i said it will affect the driving characteristics of the car. Bigger pipe= less resistance = more shift of air but although peak power may be raised you may find that power response in the lower rev ranges (for everyday driving) is much reduced. Also the situation maybe different for NA and TT engines.

 

No expert but surely its more complex than just getting the biggest exhaust possible?

Of course i mean you aint gonna get a 200bhp gain just from changing the exhaust bore are you. Perhaps with a standard engine it might not make a massive difference but as soon as you start tuning the engine thats when it comes into play.

what you guys are not grasping is the fact that unlike a non-turbo engine exhaust gasses have to pass throu a turbine which in its very nature is a damper to the exhaust pulses,thats why you cant pulse tune a turbo exhaust system. you need to get em in and get em out as smoothly and as fast as you can,back pressure can alter a cars driveabilty but more so on a n/a than a turbo engine

...............or just fit the one you prefer the look of. :x:

I think the Single exit pipe is more for the true Sports Car in the Z32 range, ie the SWB TT Manual..

 

Twins are for Limo's

 

:-)