Jump to content
SAU Community

Recommended Posts

Hey guys,

I'm looking at getting a turbo back exhaust for my r34 gtt.

I want to know what the best size is for this type of job? I was told 2.5" would be more than enough all the way through? My mate drives a 400+ hp turbo'd car and that is what he uses. He is a professional drifer.

I always thought 3" was the go for a turbo car? can anyone shed some light on this?

thanks

Link to comment
https://www.sau.com.au/forums/topic/236407-best-exhaust/
Share on other sites

Isnt the standard exhaust 2.5"??

I wouldnt go anything less than 3"

what future mod's are you going to do? and what sort of car does you mate have?

not much in terms of mods... just exhaust... air filter... induction etc

not going to be raising the boost or anything like that. Just want it as it is, but with a bit more punch.

mate drives an s13

Link to comment
https://www.sau.com.au/forums/topic/236407-best-exhaust/#findComment-4137915
Share on other sites

Definately at least 3" all the way. If you're after the best in terms of performance, then a straight-through would be it. If you wanted to stay legal then look at a jasma exhaust like the Trust PE II or HKS Silent Power (do a quick search for these on youtube).

Link to comment
https://www.sau.com.au/forums/topic/236407-best-exhaust/#findComment-4137919
Share on other sites

I use the HKS Silent Hi-Power on my R34, I'm pretty sure its a full 3" system. It has a decent note and not too droney. I'd also strongly recommend a Bosimporting highflow cat and split dump pipe which is run by one of the traders on the forum. I think his name is Batmbl, plenty of other SAU members will be able to vouch for this gear, its top quality and all fits together with no dramas! This is a pretty awesome set up that would suit your application nicely.

Jizm

Link to comment
https://www.sau.com.au/forums/topic/236407-best-exhaust/#findComment-4138809
Share on other sites

2.5inch is way too restrictive for the amount of exhaust gas you need to expel on a modded turbo car. 3inch or 3.5inch but the latter will most likely be quite loud which i don't think you'll want.

I don't think you can even buy off the shelf 2.5" kits for skylines so you would have to get one custom made and it would cost more than a 3", be more restrictive and thus inhibit performance.

I also think it's kinda odd that your mate only has a 2.5" exhaust i'd be surprised if it wasn't actually a 3".

Steve.

Link to comment
https://www.sau.com.au/forums/topic/236407-best-exhaust/#findComment-4139755
Share on other sites

If you wanted to stay legal then look at a jasma exhaust like the Trust PE II or HKS Silent Power (do a quick search for these on youtube).

umm.. isn't Jasma a brand on its own? I have a 'jasma' catback on my 33.. i never knew if it was a reputable brand or not, can anyone shed some light on this? it also has some badge on the side of the rear muffler that says 'veilside' :bunny:

Link to comment
https://www.sau.com.au/forums/topic/236407-best-exhaust/#findComment-4140666
Share on other sites

Thanks for your input guys. After inspecting the car and having another talk about it, I have decided 3" :(

On a side note... I know this has been covered before and i don't want to start up another thread, but what oil do you guys use in your 34's?

Link to comment
https://www.sau.com.au/forums/topic/236407-best-exhaust/#findComment-4152750
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • So, version 4 intake is on its way I was looking at these a while ago but at around $200 or more it was a little pricey for something that might not work, but, I had it in my watch list, but, I got a message saying it was on special, and I had a code thingie to use, it eventually came in at $120 delivered, so BAM, BUY NOW.....LOL I'll need to have a look when it arrives but I feel it will "look" better than what I currently have, as it comes with a PCV fitting, so I will be able to get rid of the alloy pipe that goes to the throttle body with the PCV fitting  Well, that's what the voices in my head are telling me  Oh, and this happened today Yeap, it was a Trojan, and it was cheap, so I headed back to the hardware store and actually spent a little bit more on a heavy duty,  one that was actually recommended by a plumber mate, a Cyclone one with a fibreglass handle that is actually rated for clay The broken shovel will eventually be "modified" into a short handle shovel
    • When you pulled it off, there is no signs of blown head gasket? Is it possible you have some other issues going on? Possible cracked blocked? Or do you think it's straight up lifting the head? Did you check what the head was torqued to before pulling it down (To see if possibly they're stretching, or starting to break threads out etc)?
    • Seems like a decent result for a modded JZX110. They are bulky in comparison to the 100 and 90 models (which I'd prefer myself) but they are getting very few and far between here in JP these days. Thanks for the detailed review and the import process into the UK. I also have a car which I'm hoping to export from Japan at some stage so it's good to know if someone from the UK was interested in it. By the way the corrosion underneath is par for the course for cars which were located in/near the mountains or along the Japan sea coastline. They get huge amounts of snow every winter and the sodium chloride is used on the roads. Many cars have some kind of rubber like treatment underneath but they tend to limit it to the wheel arches underbody and fuel tank. Suspension arms and sub-frames will have similar corrosion to your JZX110 which is a common sight. See it all the time and car dealers here generally don't even mention it unless asked.
    • If the sound goes away when you clutch in, the 1.5/2 way diffs are just shit, and you are a normal person. The diff is likely "fine" but driving at anything under 30kmh is a violent horrible experience. It would be exaggerated with solid diff bushings and subframe bushings if you have those.
×
×
  • Create New...