Exhaust Technology

[Richo]

Thinking of getting one of those straight pipes systems for my r32 gts-t , look quite good, but I was wondering if there is anyone here that it is actually running one of those systems at the moment.

Interested to hear opinions of people good of bad, in relation to the sound and overall quality of their products.

Cheers.

[Nozila]

make that two of us. although you could just do a backyard job, cause at the end of the day they are just pipes.

[mad082]

what do you mean by straight pipe systems?

[Nozila]

i think he means from turbo back with no resonator/cat converter/muffler at all. hence straight through pipes

[Richo]

yes thats the one, nothing at all turbo back, and splits at the end on to 2x 3" pipes. An Apexi ECV is welded on the pipes for noise reduction.

Anyone? Ill post up pics later tonight for those who havent seen it.

Cheers

[MBS206]

Run a normal exhaust.

You still need a catalytic convertor for legalities...

[LiQuid IcE]

one of the magazines have a cool artical this month where they test an rb26dett with stock GTR exhaust and then with their aftermarket one...

They GAINED 4kw by putting the stocker back on. Not generalising obviously aftermarket exhausts are generally better than the stock but its food for thought.

[Richo]

It is 90% track, 10% street car, so not too concerned about legalities.

[PHATR32]

how loud would a r32 gtr be with a straigh pip in place of the back muffler? keeping the same pipe and cat though out?

[konect]

how loud would a r32 gtr be with a straigh pip in place of the back muffler? keeping the same pipe and cat though out?

insanely.

[Richo]

ok this is what im talking about.

[MBS206]

It is 90% track, 10% street car, so not too concerned about legalities.

How abuot stop destroying the environment and killing future generations. Whilst you're on the road, even if only 10% of the time, you risk I beleive it's a $15 000 or $25 000 fine. Might as well be prepared to sell the car to pay it.

[VB-]

get two high flowing cats and run them in parrellel on a stright bit of pipe, never seen anyone do this but i rkn it would help flow a bit?

[Richo]

How abuot stop destroying the environment and killing future generations. Whilst you're on the road, even if only 10% of the time, you risk I beleive it's a $15 000 or $25 000 fine. Might as well be prepared to sell the car to pay it.

How about you shut up and stay on topic. If you have nothing productive to contribute to this thread do not post in it.

Thanks

[Richo]

get two high flowing cats and run them in parrellel on a stright bit of pipe, never seen anyone do this but i rkn it would help flow a bit?

How can you run two cats "parallel" to each other on the same pipe? or did you mean on two full pipes turbo back?

[Silent]

On a single turbo vechile, It would be stupid to run two high flowed cats.

If you had a gtr with two dump pipes you could run two separate cats . Exhaust for each turbo.

[WazR32GTSt]

How about you shut up and stay on topic. If you have nothing productive to contribute to this thread do not post in it.

Thanks

what MBS206 said is quite valid mate...

maybe you should consider the wider effects of what you might be doing?

one skyline tries to run no cat/muffler and drones at 100dB+ and then the cops turn on all skylines because they can

if you must, why not get this exhaust you want, and change it at the track before your session?

[R34NRG]

How abuot stop destroying the environment and killing future generations. Whilst you're on the road, even if only 10% of the time, you risk I beleive it's a $15 000 or $25 000 fine. Might as well be prepared to sell the car to pay it.

u got a point there mate but wat about telln that to holden and ford when they have their bathurst comps?

if his got a car thats used for track and he wants maximum output....im pretty sure his entitled to it.

even though i do agree with u.....maybe some extra thought should be taken into account about dumping bad gases into the air........again if its a track car....wat can ya do....its not like he can get EPA'd........can he?

[Richo]

exactly my point, all race cars have run no cats on their systems, and they flogged them for hours on end every weekend on every track of the world, and I dont see anyone complaining about that, or any goverment doing anything about it.

Maybe if you are such a tree hugger, you should put the idea forward to do EPAs to race cars as well.

Dont get me wrong I care about the environment, if it was a daily driver I would never think of runing no cat, I am not stupid.

[saliya]

how loud would a r32 gtr be with a straigh pip in place of the back muffler? keeping the same pipe and cat though out?

See the forsale in my .sig.

That exhaust is a bolt-in for a 32 GTR and was 105dB @ 3500RPM with twin highflow cats/no mufflers.

It's now 95dB @ 3500 with the 2 mufflers in it. Stock turbos. 105dB is, IMO, insanely loud; 95dB is IMO not.

Stock turbos do an awesome job of shutting up your car. But it all depends on pipe size and load.

If you're talking about just deleting the rear muffler and keeping everything else; you're going to

be restricted by the stock pipe size but you will probably pick up 3-5dB in noise.

It won't be _insanely_ loud as the stock pipe is quite small and you will still have the centre muffler.

Regarding the cat stuff; there's another thread I posted in showing what I believe the best legal

solution is here.

Regards,

Saliya