Jump to content
SAU Community

Recommended Posts

Hey all,

I really need some help regarding my exhaust.. I currently have a 3inch BOS importing dump pipe which did connect to the exhaust which i have posted in the pictures below (4.5inch tip). Due to EPA i took off the catback and just replaced it with the stock system without changing the dump pipe in order to clear.

I was just wondering if you guys could point me in the right direction as to how and who could modify my exhaust to make it a reasonable dB without losing too much performance as it is way too loud at the moment.

One more thing, ever since i got my new dump pipe installed this crackling sound has started.. it has been coming from underneath the car. Used to happen a little bit when i had the stock dump on but now it has gotten worse and i cant seem to get rid of it. It comes when im accelerating at low revs and when i take my foot off the accelerator.. Anyone have any idea what it could be?

Thanks in advance guys.

Alan.

Edited by LouLou
Link to comment
https://www.sau.com.au/forums/topic/183327-need-help-with-my-exhaust/
Share on other sites

Resonator/muffler or move to qld :D

Is the noise more rattling or what? have tried to replicate the sound at idle with bonnet up to see where the noise might be coming from? Could be a number of things leaking gasket, loose nut/bolt, wastegate not firm up against the housing, contact between heat shield and dump pipe etc.

Resonator/muffler or move to qld :D

Is the noise more rattling or what? have tried to replicate the sound at idle with bonnet up to see where the noise might be coming from? Could be a number of things leaking gasket, loose nut/bolt, wastegate not firm up against the housing, contact between heat shield and dump pipe etc.

Its more of a crackling sound than a rattle.. Lifted the bonnet up and gave it a rev and its coming from the right side of the engine where the turbo is but im not positive on what it could be. Im thinking it could be a leaking gasket or something.

Try grabbing the actuator rod with pliers and pulling towards the front of the car, sometimes the actuator can loose a bit of tension and make a similar noise. Also check everything first because the last thing you want to do is go to all the effort of taking the turbo off to find the gasket is not the problem.

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

    • Not really, no. Anything you would do is easily reversible.
    • I would like more noise related info for my truly uneducated guess  Does it do it at idle or when revving, clutch engaged, and disengaged? Does it only do it when the car is moving? I've heard "similar" noises from a clutch pack that left the chat room, and CV joints that have chewed themselves out But as Matt said, how's the yokes, tailshaft and centre bearing going after their last little issue Fingers crossed it is something simple  Weird noises make me cringe 
    • One other question, is there a chance that changing the idle speed can lead you down a rabbit hole and is the reason the tuner didn't touch it? Reason I ask is because if that's the reason the tuner avoided it then I probably shouldn't be touching it lol.
    • Pfft. As if I'd ever point a high pressure washer at my car.
    • The nature of my commute has changed. Way back then it was traffic lights all the way, for ~28km. It sucked. When they finally stitched the expressway together I could do a good 15+km of it at a steady 80-100 with no stopping. That alone has gotten me down to flat 10s. Prior to that it was mid-high 10s. I can't remember the delta that I saw when I got the idle down. It was only ~150 rpm, because the idle speed was never terrible, but for the delta in consumption to be noticeable it would have had to have been at least 0.2-0.3 L/100km - which is not to be sneezed at when it comes for absolute free. It's only about 50L per year, but that's ~$100. A few extra pizzas is always welcome. Note that I have a record of every tank of fuel that has ever gone through my car except for a handful put in by someone else, like my mechanic. I can show you the difference between stock RB20 and tuned RB20, stock RB5Neo and tuned, winter and summer fuel blends, winter and summer fuel blends when the ambient temperature is not appropriate for the blend, working O2 sensor, blown O2 sensor, boosting f**k out of it and frightened to boost it because it is pinging, and so on. OK, I probably can't do all that now with 100% clarity - but at the time when any of those things were in event, you could see it in the records. There's 25+ years of simple tank after tank records, so you have to look for landmarks to work out approximately how old any single record is. What's really important is the meta data and that lives in my head.
×
×
  • Create New...