Custom exhaust :)

[t.renshaw34]

Hey guys, already got the down pipe (HKS) but just looking to do the center are y pipes now, was going to get a "phat" center and y but he's not making them anymore, so I'm getting a custom made one,

Going with two 10" resonators to keep the drone and idle noise down but I don't know to go 2.5" or 3" on the Y pipe,
I'm keeping my stock mufflers... For now :p.

Also can't decide on turbo upgrade options. Thinking Vf34 as it's not over the top and I'm only looking for 200-210 kwatw.

Let me know what you guys think.

Taylor

[jimbo]

I run a 3 inch pipe to the y pipe and then it splits to 2.5 inch. Has a really good note to it and there are reasons which were explained to me by my exhaust builder but I can't remember but seeing he builds race cars and used to race as well I took his word for it :-p

[t.renshaw34]

Thanks for the advice, the only reason I can think of about the 2.5" Y pipe is to help keep pressure consistent, obviously going from one 3" pipe to two 3" pipes is going to have a drop in pressure, where as going into two 2.5" pipes would help keep the pressure more consistent, but I don't know a whole lot when it comes to what's the best size and type of exhaust to go for. That's why I'm posting about it lol.

[coyote]

2" after the Y is more than ample for your power goal.


Sent from my GT-I9100 using Tapa-fkn-talk.

[hamish_023]

Why go full exhaust and keep the restrictive muffs on there?

[t.renshaw34]

Thanks for the info mate . Would there be much of a noise difference between 2.5" and 3" Y pipes?

[jimbo]

Also the VF34 is a single scroll from memory and you have a 05 GT which is twin scroll. Moving from twin to single scroll is a big job, need to change a lot of other pipe work from what I've been told

[GT_Tony]

i would stick with 2 1/4 or 2 1/2 Y pipe any bigger and you will drasticly loose clearance height. (lower your car and your pipes will hang low)

[t.renshaw34]

Yea thats the thing I was woundering with the vf34, I was told that it would be a straight bolt on as I have a HKS dump pipe, but I didn't really think the guy knew what he was on about.

[cruisn]

I was told that it would be a straight bolt on as I have a HKS dump pipe, but I didn't really think the guy knew what he was on about.

He DIDNT know what he was talking about.

Even the STi twin scroll VF37 isnt a straight bolt on. Without major work, there is simply is no bolt on upgrade for the twin scroll GT.

I wouldnt go 2.5" pipes to the mufflers either for your needs. 2.25" max and as said 2" will be more than adequate.

[t.renshaw34]

Hamish: just keeping the stock muffs on for now to see what it sounds like.

Mark: how come you want me to go only 2" or 2.25" on the Y, wouldn't that be to restrictive when I upgrade the turbo and mufflers?

[Gambit]

Hamish: just keeping the stock muffs on for now to see what it sounds like.

Mark: how come you want me to go only 2" or 2.25" on the Y, wouldn't that be to restrictive when I upgrade the turbo and mufflers?

Depends on how much power you want to make in the end too.

[t.renshaw34]

Looking to get around 200-210 kw atw, any ideas for good twin scroll turbo upgrades? I'm just susing out some other cars people have done turbo upgrades on.

[hamish_023]

Hamish: just keeping the stock muffs on for now to see what it sounds like.

The stock mufflers sound like balls. Most of the noise is from the centre and y pipe.

[t.renshaw34]

Thanks Hamish lol , Im only giving it a few weeks and I'm sure I'll be getting new muffs.
Thinking about going x force mid and Y pipes as they are a good price, anyone have any good or bad points on x force?