Jump to content
SAU Community

Recommended Posts

S2 Manual.

JJR Dump & CAT

Dodgy 3" J spec steel cat back with big mid muffler and HKS mega can (5" tip with a silencer thing that has never been shoved in).

Its quiet at idle but doesnt really have an RB burble.

I would like to maybe change the mid muffler to get a meatier sound but it's welded in.

I dont want it louder just sound better.

If you think your car is droney, try driving with the boot a little open.

I picked up a door for the house that was too long, it was the loudest trip home with everything being reverberated straight forward into the cabin.

Scotty's dump

Front pipe

Apexi N1catback

Sounds good between 3 and 5, bit droney otherwise, and makes some wierd 'wind exiting cannon' sound at full noise...


Will replace eventually

Edited by NickM91

Just curious if anyone here has actually had their's db tested. Mine is a custom job from about 8 years ago now (previous owner). 3" from turbo back, custom made oval mid (apparently it was meant for a rotary I was told) and some kind of cannon up back. I've never had any attention from the police with it, but they are coming down real hard on anything that even looks modified around my area at the moment. Its not a bad sounding system and far from obnoxious but it does drone a bit and I'm still not sure its completely within db limits (it wouldn't be far over if at all). The canon on the back has seen better days now anyway and I got over the "canon thing" years ago. So I'm thinking of changing the mid and rear. Making the rear some thing oval with twin tips. Will look a bit more inconspicuous. I'm never going to be chasing massive amounts power from this car, one day if I can get up to 200awkw then I'd be happy with that. So I'm still going to keep it all 3" but want it quieter now with less drone. So something internally baffled instead of straight through is probably going to be the way to go. Anyone with a similar setup to this I would like to hear what you've got.

the one i posted in the youtube vid, is my straight thru system, from 1m away @4k rpm it did 106dB. (thats no cat, no mid muffler, just the end muffler from the HKS hi power silent kit.
now with a 170cell cat, and original HKS hi power system, i did 91dB @4krpm from 1m away.

tested at my mates exhaust shop with the dB reader

  • 4 months later...
  • 9 months later...

Hi I'm considering upgrading to a custom 3.5" cat back, car making about 450hp, wondering if it would benefit...over my current 3" set up

Pretty vague, there can be substantial differences between 3inch exhausts so how would we know how good yours is?....

Go on dyno , do power run.

Drop exhaust, do power run.

Figure out if you want to make new exhaust.

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

    • This sounds like someone who would have owned an R33 in their past... It's okay, I'm 100% picking up what you're putting down Mark.
    • Just back on what was raised about jacking off the the tow/tie down point on the front of cars. I've used it plenty. I've also watched it on a car where you could see it move the front end of the car. It was like the front end/whole car being tweaked and twisted a bit. I will say, I struggle to find good jacking points on MOST cars. The ones that have good points, I then normally struggle to find a jack tall enough to make the car change height!   One of my go to points for either the jack, or the axel stands though, is either a suspension pickup point, OR a subframe to chassis major bolting point. I actually think its the subframe on my R33 that has a bit of a bend in it, from being jacked in the middle too. However, it could have been one of my many other cars I've had over the years! Or it could also be the from me jacking it up, and the fact the top of the front radiator support isn't there, so it can allow the front of the car to move and bend etc.
    • My apologies. I forgot we were talking about weird beard M series stuff. Had been talking elsewhere with someone about an R33 with similar subject and got confused.
    • Nope, I don't like the look of ND RF, or any ND really, I don't like their faces or arses, why, because of their "modern" lines, the NC, whilst "modernish" has a more rounded shape that I like Well, that's how my overly judgemental eyes see it anyway  
    • Should be more than fine, especially the overall fuel pressure would never exceed 3.5bar (assuming that thing never gets more than 0.5bar of boost in stock form). According to the chart, it's 11amps.
×
×
  • Create New...