What do you think????

[slyline]

Hi everyone,

I'm only just thinking about this at the moment tell if this mod is worth it? what does hi flow mean?

I plan on getting an exhaust system for my R33 GTST it is a 3'' cat-back from the turbo with 2 4'' mufflers on either side of the car. Hi tech mufflers have quoted me $1000 for the job. do you think this is worth it? will i get a slight increase in power/ performance?

Thanks for all Da help

slyline

[wreckedhead]

if you want it to look good i think go ahead and do it, but i thik you should stick with 3in cat back and 3 in muffler and 4in tip performance wont make any differnce unless you running big set up

[CGB_R32]

Sorry if im mistaken but how can u have a 3" cat back from the turbo..... i mean they call it a cat back becoz it start from the cat and works its way back so how can it be from the turbo?

[JAS-25T]

ahahahhahah

yeah that sounds weird

a cat back is from the cat back, not turbo back

[wreckedhead]

relax guys he obviously made a mistake.

[sidewaymambo]

someone is selling a Trust full system in Private sell section, may be worlth have a look..

http://www.skylinesaustralia.com/forums/sh...ead.php?t=37104

[slyline]

ok sorry guys, my bad. I dont really know what im talking about but i described to hitech something simple and will breath alot better. what is a dump pipe? what is hi flowing?

Just relax abit. i'm only human

[paulr33]

a dump pipe is the outlet pipe on the exhaust side of the turbo, high pressure off the turbo is pushed out through this pipe, when you run higher boost pressure through a different turbo other than the stock one, the stock dump pipe becomes a restrictrion, also probably when you run higher boost on the stock turbo, as its a restriction point. if you are getting a full exhaust, you should get a dump pipe too, and also a front pipe to increase both airflow off the back (exhaust side) of the turbo and to the front (air intake side)

hi flowing involves getting your stock turbo, replacing the compressor wheel and blades with new and usually stronger parts so you can run a higher boost than the stock limit, if you run your stock turbo at about 14psi it will go bang sooner or later as the compressor wheel can't handle that high amount of pressure for too long, higher pressure = more heat = compressor wheel go bang. when its hi-flowed these parts are much stronger and you can run up near 18-19psi on a hi-flowed turbo (well the stock r33 one anyway) its comes out to about 450HP turbo, or there's a 500HP variant too, from gcg turbos in sydney. to hiflow is about $1800-$2000 and its done on your turbo, or as a trade method, you send in your stock turbo and the money, they send you out a hiflowed model.

someone else may be able to add some more info, i think my descriptions are correct

[paulr33]

the main advantage of getting a hiflowed model of your stock turbo is that will bolt directly back up and anyone can put it back on or take it off as its just standard bolts, no other changes need other than a boost controller.

if you get a different aftermarket turbo (hks/greddy/apexi/garrett) then you may need a different manifold and youll need to match up the water/oil/exhaust lines so that it fits correctly, which can be costly. with a highflowed model you dont have to worry about it

[crooser]

adding a 3" cat back system is a good start. Certainly worth doing. Not only will it sound a lot better, you'll gain a bit of top end power and probably a pound or two in boost also.

You can add the other bits (front and dump pipes) down the track.

I say go for it!

[CerealKiller]

I got quoted $1100 for hi-tech for a cat back on my R32 (3" cat back with 4" tip/6" cannon).

I notice quite a few people have hi-tech mufflers so I guess they must be doing something right!

[Guest INASNT]

Hi everyone,

I'm only just thinking about this at the moment tell if this mod is worth it? what does hi flow mean?

I plan on getting an exhaust system for my R33 GTST it is a 3'' cat-back from the turbo with 2 4'' mufflers on either side of the car. Hi tech mufflers have quoted me $1000 for the job. do you think this is worth it? will i get a slight increase in power/ performance?

Thanks for all Da help

slyline

Is that for mild steel or stainless?