Jump to content
SAU Community

N/a R33 Exhaust System 2.75 Inch Cat Back Droney?

Deza3000
 Share

Recommended Posts

Deza3000 Proficient

Deza3000

Posted
Posted

Hey guys,bit of a noob on this topic, was just thinking of buying a new exhaust system, i found a rb25det (turbo) cat back exhaust, comes with 2.75 inch piping and a high flow cat, canon tip muffler all for a really cheap price, and was wondering if it will be droney on my n/a, or will it give a nice note? I heard 3'' exhausts are terrible for n/a's, all you end up with is a farty exhaust and nobody wants that =p

Also wondering will it directly bolt on to the factory flange or will i need to do some welding =='

Cheers guys

Deza3000 Proficient

Deza3000

Posted
  • Author
Posted (edited)

Haha yea second hand 100 dollars, looks like he spent a fair bit on it as well judging by his receipts, it was the only reason i was considering it =p Well if worse comes to worse i could always switch back to my factory exhaust but keep the high flow cat aye ? It has a hot dog resonator (i think thats the technical name for it)

Edited by Deza3000
mad082 Grand Master

mad082

Posted
Posted

probably going to drone like hell, even with a resonator. the turbo actually quietens down an engine, so while it would've been reasonable on the turbo, it will be loud on a natro. however if you find it too loud then you could go to an exhaust shop and have them fit a decent rear muffler (cannons are shit for actually reducing noise. an oval muffler is much better) or bigger resonator. or both, which is probably what it will need

Deza3000 Proficient

Deza3000

Posted
  • Author
Posted

probably going to drone like hell, even with a resonator. the turbo actually quietens down an engine, so while it would've been reasonable on the turbo, it will be loud on a natro. however if you find it too loud then you could go to an exhaust shop and have them fit a decent rear muffler (cannons are shit for actually reducing noise. an oval muffler is much better) or bigger resonator. or both, which is probably what it will need

Yea i asked him if it droned on his car, he said it did a little bit when he installed a bigger turbo, so im guessing the lagg from the turbo made it sound like a n/a with a 3 inch exhaust. But he said the stock turbo note was perfect. One of my mates told me to just install the high flow cat and the canon, and leave the 2.5inch b-pipe stock so it will quieten the noise with he stock resonator. Anyways not too fussed about it, just dont want to keep my hopes high that it'll sound good.

Cheers for the quick reply.

Captain Natro Grand Master

Captain Natro

Posted
Posted

For 100 bucks you can't go wrong, in my experience (having owned one of the RB powered snails) they are all droney, some people claims there's isn't but I've been in alot and if they make any form of audible note outside it drones inside.....

Keep it quiet or put up with the drone :thumbsup:

  • Like 1
Deza3000 Proficient

Deza3000

Posted
  • Author
Posted

Just an update on the exhaust guys, i ended up purchasing it for 120 bucks, ,I took your advice and installed it at an exhaust shop, got the 2.75 inch hot dog resonator cut out and welded a 2.5inch one, i also purchased a silencer and bolted that onto the canon. Now the car just has a humble note to it, no drone or raspy sounds at all. Its slightly louder than my factory but not by much (which is what i was hoping for). The silencer has this volume control thing on it, so i could make it a bit louder or more softer if i wanted.

Anyways cheers for the help guys, helped me a lot!

  • 2 weeks later...
  • 4 weeks later...
AlexWaltham Contributor

AlexWaltham

Posted
Posted

Iv got a 3" Cat Back on my N/A and it has two mufflers (that are pretty big) and it doesnt drone or anything sounds good enough lol

but now i have a exhaust leak from were my down pipe joins to the cat (So it sounds horrible for now)

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Duncan
      From Japan and back to Europe, my sh*tbox R34 GTT

      By Duncan · Posted

      Must have been an absolute nightmare to drive when the power steer was out, the rack ratio/wheel size/caster is all set up for power assistance
    • Duncan
      New

      By Duncan · Posted

      Welcome to SAU, what are you looking at buying?
    • GabsReDeal
      R32 GTS (RB20DE) Injectors Replacement

      By GabsReDeal · Posted

      I checked the injectors again (1 and 2, since they’re easiest to access) to make sure they weren’t clogged. Even though the entire fuel system had been cleaned, I wanted to be certain. Everything looked clean, so I reinstalled and connected everything. When I started the car to confirm everything was okay, it immediately revved up high, so I shut it off straight away. I checked to see if I’d missed a vacuum hose or something, but everything was connected. On the second attempt, the car ran without the high idle, but I noticed a distinct “compressed air” sound coming from the engine bay. Tracing the sound, I pushed injector #6 forward slightly and the noise stopped — it turned out it wasn’t seated properly, despite the fuel rail being bolted down. While holding it in place, the car idled steadily without stalling and ran for over 5 minutes. At this point, I pulled all six injectors out just in case I hadn’t seated them correctly or dirt had gotten onto the O-rings. Unfortunately, I discovered that I had damaged 3 out of 6 injectors (the OEM 270cc ones) during installation. So yes, this was my fault. Since only the pintle caps were damaged, I’ve ordered a Fuel Injector Service Kit from NZEFI to refurbish them. In the meantime, I reinstalled my new injectors – the car now idles fine for over 15 minutes without stalling. I have not attempted to drive it so far. It’s not perfect yet, as it hesitates when the throttle is pressed, but it’s a big improvement. Unplugging the IACV with the new injectors idles at around 800rpm, even with the IACV screw tightened fully. But this is probably due to tune.
    • hoodedreeper
      Chris' Toyota Mark ii JZX110

      By hoodedreeper · Posted

      I wanted to try and preserve the front bumper as long as possible, they're not cheap and are made to order in Japan. Taking inspiration from my previous K11 Micra build where I made an undertray for the Impul bumper, I did the same for this BN Sports bumper but a little slimmed down.  This time round I only made a 'skid plate' (if that's the correct wording/term) for just the bumper surface area, the Micra version covered the gap like an undertray. Starting off with a sheet of mild steel approx. 0.9mm thick 4ft x 2ft in size. I traced around the bumper, cut it out and cleaned the edges. Luckily I was able to get two halves from one piece of metal In the video I installed it as is, but I've since then I've removed it to spray and add a rubber edging trim. The rubber trim is suitable for 1-2mm and it's a really nice tight fit. The bolts had to be loosened due to the plates being too tight against the bumper, the trim wouldn't push on I used some stainless M6 flat headed bolts for a flusher finish (rather than hex heads poking down), I believe this style fastener is used for furniture too incase you struggle to source some. The corner's are a little wider, but this may be an advantage incase I get close to bumping it  The front grill got some attention, finally getting round to repairing it. Upon removal one fixing pulled itself out of the plastic frame, one side is M8 that fixes inside of the frame, where as the other side is M5. Not knowing I could get replacements, I cut down an M8 bolt, threaded it inside the frame along with a decent amount of JB Weld.  The mesh was replaced to match the bumper. One hole on the bonnet/hood had to be drilled out to 8mm to accommodate the new stud, once the glue had set it could be refitted. I think the reason the grill was double meshed was to hide the horn/bonnet latch (which makes sense) but I much prefer it matching the bumper Bumper refitted and it's looking much better IMO The Youtube video can be seen here: https://www.youtube.com/watch?v=bVZP35io9MA
    • hoodedreeper
      Chris' Toyota Mark ii JZX110

      By hoodedreeper · Posted

      The video for the servicing and fuel filter change can be seen here: https://www.youtube.com/watch?v=uLJ65pmQt44 One of the main jobs I wanted to do before the car officially went on the road, was to remove the awful looking blue silicone hoses. There's nothing wrong with having coloured silicone hoses, but I realise as I'm getting older I prefer monotone engine bays with a splash of colour on the engine cover(s). I cover this in a lot more detail in the Youtube video, so unfortunately there's limited photos of the process. The intercooler, upper radiator, boost vacuum and upper breather hoses were all changed to black silicone with mikalor clamps. The only blue left is a blanking cap at the back of the inlet manifold and the GReddy pulleys (which will be replaced for stock when the cambelt gets replaced) While the intercooler pipes were off I gave them a quick clean/polish too A before photo I do have a replacement air filter on its way. Fuse box covers were painted blue, they're now satin black Another job on the list while the bumper was off, is to add some mesh https://live.staticflickr.com/65535/54737966256_99b28bfa30_c.jpg[/img] I was hoping to use some thin wire to secure it, but it seems I've misplaced it and the wire I had was too thick to twist easily. I ended up using cable ties for the time being https://live.staticflickr.com/65535/54737131882_c2b7989dcc_c.jpg[/img] Was pleasant to see this https://live.staticflickr.com/65535/54737131627_8b2aab13b3_c.jpg[/img] The last thing to do was to fix the front grill and re-mesh that to match but I ran out of time The Youtube video can be seen here: https://www.youtube.com/watch?v=R4FsF6tgizE&t=23s
×
×
  • Create New...