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

    • Sorry no - The sandtrap adventure ended the day, happened at the end of the last session. At that time I wasn't hearing any weird noises nor were the brakes shuddering anymore. It was only when watching the videos that I remembered I had these sounds early on!
    • Did the noise appear after your sand trap adventure? Could be something got dislodged and is playing rub rub. Even a rock wedged somewhere.
    • Is there a shroud around the tailshaft spline into the back of the box? They can rub and make a horrible noise if they are not on straight/damaged. The heat might have caused it to grow too much in one direction and rub.
    • Strangely I noticed it either disappear later in the day, or not be present. I definitely noticed when I was crawling around that open wheel thingy entering the pits (that part was audible in car). Driving home and commuting around town for example, I didn't hear it. It's plausible that it was a brake disc or something still slightly in contact. The brakes absolutely felt BAD for the first couple of sessions, huge amounts of shudder and grinding as they got up to temp - And then I actually just forgot about it as the day went on/didn't notice it. The videos were from the morning when this was more present than the afternoon/drive home when it wasn't. I've asked around and got a variety of responses including handbrake shoe contacting hub, CV joints, CB tailshaft bearing as above, and clutch input bearing. I didn't test if it disappeared when clutch was in. I haven't noticed it in any of the other videos nor did I notice it when driving to that extent. More or less hoping the microphone at the rear license plate giving some kind of clue of 'something' but it looks like "spin stuff and see if you can notice it" is the way forward here. I could be smart and use the gopro mic and re-mount it to that location to see if the sound is still present at low speed actually. Sounds like a decent test whenver I have the CBF'ness to drive the car again. Given it's almost 40C for the day of the track day and the next 3 days after, the CBF is high. All I've done since getting home is unpack the car, remove the remnants of the lip and undertray and left it there. I was surprised how well the PMU Club Racers actually worked. The brake performance on the track was absolutely fantastic, best I've ever personally used, no fade whatsoever and the bitiness was almost too good, I was scrubbing more speed off than I needed to, but I also ended up infield when I started trying to scrape off ... less speed.... so...
    • Not really, no. Anything you would do is easily reversible.
×
×
  • Create New...