V8 Exhaust

[offrdn]

Hi Guys

I went to the local exhaust guy today and said im looking at replacing the centre muffler or just putting a pipe in place of it

well did i get a ear full

all i got was don't do it its loud you will get booked it will severely increase fuel consumption


what ya reckon


andyk

[siacci]

I was going to drop the resonator (the little one down the back) off once. The guy said it would increase the noise inside the rear of the car , a drumming sort of noise he reckoned, so I didnt do it.

Probably should have tried it I suppose...

Dave

[Pedro_The_Swift]

I ran my d1 for over ten years with NO mufflers,,

yes it was loud!:cool::D;):twisted:

yes it increases fuel useage,, only because you want to hear the noise---:cool:


start without the centre,, just pipe it. The rear resonator will keep it to a dull roar,,

[ozscott]

I know a bloke with a really good performance exhaust shop in Capalaba - does a lot of well restored US muscle cars. He tried to do a new 3 inch pipe and muffler and resonator that was meant to all be quite free flowing but not loud. I started it when he had finished at it was INSANE. I drive up the street and he stood there just shaking his head. It used to start off from the lights and people would look around looking for the ozzie muscle car and not finding one looking confused. Took it back cause I just cant pass myself off as 17. He said he couldnt believe how loud it was and had thought about it and reckoned it had to do with the engine being all alloy and putting out more noise than a steel one. He then changed the resonator and muffler to a more packed one but still good flow and the note was then very close to stock but better flow. I really like it now and its very liveable.

Be careful what you wish for cause there seems to me a big gap and no midway point between quiet and throaty to outright insane.

Cheers

[disco97]

i got a new muffler put on the centre, the original one was big heavy and crap, the one i got put on is a almost straight threw but its quiet at idle but boot it and you will hear it. its great for when i tow doesnt drown just sounds sweet. total cost $90 fitted. oh i went in to get a straight pipe but got a call to come back and listen to it was waaaayyyy to loud.

[BigJon]

My RRC has a twin system (1 5/8 pipe from memory) with straight through "mufflers". It is properly loud. If I drove it every day I would have to make it quieter, but I usually only see it one week out of every four so I put up with it (enjoy it!!).

[cockie55]

I decent shop will be able to fit you out with a performance muffler that will sound good but not get you into too much trouble with Mr Plod providing your careful. By the way you need a resonator otherwise the low frequency drone sound will give you a headache. Coin permitting replacing OEM pipe with 2 1/2" would be ideal.

[Jim621]

I was going to drop the resonator (the little one down the back) off once. The guy said it would increase the noise inside the rear of the car , a drumming sort of noise he reckoned, so I didnt do it.

Probably should have tried it I suppose...

Dave

My Disco has the rear resonator removed and replaced with a straight piece of pipe. it was done by the previous owner cause it was dented i was told.

I cant give an accurate comparison between with and without, but i can say its very quite in the cab still, it not loud at all.

Steven

[Chops]

I have had the rear unit off for years now,, I've never noticed any "drone", and its not got a loud note at all,,, does sound quite good though,, (of course it does, any V8 does :)),
As for the guy going off about noise,, if he wants a quiet car, he should get himself one,, and not worry about what you want on your car,,
So the front unit on mine is going to need replacing soon, (rust), so I have similar problems,, as in which way to go,, A twin system has a better note I reckon, but people say a 3" is the way to go. So I guess it's a compromise between economy and "noise likes",, I guess if I was overly worried about fuel, I wouldn't have a V8 to start with,, so then, just need to work out whats the best sound,,:eek:

[Boxer]

Mine had Hurricane headers from Liverpool Exhaust and a full 2.5 inch system with a res and a muffler.

YouTube- V8 Landrover Discovery

[Cannon]

I replaced the Centre with a free flow Redback I think.

Sounds quiet at idle but really nice when you use it as intended:twisted:

Linky (http://www.aulro.com/afvb/members-rides/84956-cannons-battletruck.html#post1038064)

[Traco]

I had a new exhaust system fitted to my 95 V8 in place of the original one. I went for a 2.5 inch custom sports exhaust system in mild steel from Y junction back with a Supercat Converter straight through main muffler part no. SCM 4054 and Berkley sports resonator part no. BM444 and a 2.75 inch straight out single steel tailpipe tucked high up under the back bumper.

All up $350 fitted from Exhaust Plus at Northpark.

Deep distinctive Rover alloy V8 rumble at idle, noticeably louder than before but not deafening by any means. Open the throttle up and it growls as the revs rise bit like a muted TVR. Much more like it than before and so far I've driven everywhere with the back windows open just to savour the sound it makes.

[QLDMIKE]

You would have to try hard to stuff-up the noise of a Rover V8.

Loved driving mine. 2.5", strainght through muffler and no rear resinator. Cost me $250.

YouTube- Full Noise

[Hoops]

Mine had Hurricane headers from Liverpool Exhaust and a full 2.5 inch system with a res and a muffler.
Was that a twin system of single? I am thinking either twin 2.5" or single 3".

Mine has the rear resinator removed with the standard muffler still in place and it sounds good although i am still looking at putting a custom system on.

[Traco]

I had a new exhaust system fitted to my 95 V8 in place of the original one. I went for a 2.5 inch custom sports exhaust system in mild steel from Y junction back with a Supercat Converter straight through main muffler part no. SCM 4054 and Berkley sports resonator part no. BM444 and a 2.75 inch straight out single steel tailpipe tucked high up under the back bumper.

All up $350 fitted from Exhaust Plus at Northpark.

Deep distinctive Rover alloy V8 rumble at idle, noticeably louder than before but not deafening by any means. Open the throttle up and it sounds sensational from around 1500 rpm.

[MSkinner]

I just went through this with my v8. Initially it had the stock exhaust system on it. I had the centre muffler replaced with a high-flow one, 2.5in pipe front-to-back, and kept the stock rear one. Noticeable but not dramatic increase in growl. Then I had the rear muffler replaced with straight pipe. This made it a whole different animal completely. Sounded like a muscle car. I loved it out on the tracks, but it literally gave me a headache at highway speeds on extended trips, my neighbors hated it (I'm a concreter and sometimes leave as early as 4am), and it was obviously totally illegal. I've recently replaced the straight pipe with a small, high-flow rear muffler and I'm happy with it now. Still has a nice growl around town, has a nice bark when I put my foot down, but doesn't drone...and my neighbors love me for it!

[rick130]

Was that a twin system of single? I am thinking either twin 2.5" or single 3".

Mine has the rear resinator removed with the standard muffler still in place and it sounds good although i am still looking at putting a custom system on.


2.5" duals ?? :eek:

I only used a 2.25" dual system on a 351C

2.5" single is plenty big enough on something around 4 litres, gives a nice compromise between flow and torque, a 3" single system is only used on big engines or for racing. Save your $ ;)

[robzilla]

You would have to try hard to stuff-up the noise of a Rover V8.

Loved driving mine. 2.5", strainght through muffler and no rear resinator. Cost me $250.

YouTube- Full Noise (http://www.youtube.com/watch?v=z87g5yJitvI)
damn that sounds good. who gives a stuff about fuel usage when you get to hear that all day :D

[BJP98V8]

You would have to try hard to stuff-up the noise of a Rover V8.

Loved driving mine. 2.5", strainght through muffler and no rear resinator. Cost me $250.

YouTube- Full Noise (http://www.youtube.com/watch?v=z87g5yJitvI)


Mine is very similar to this, I have Genie extractors, 2.5" from the Y with a small sports muffler from A1 Exhausts, $300ish if I remember crroectly.
Only drone I have noticed is very minimal but in 5th at lower speeds around 70-80kp/h.

Fuel consumption wasn't a dramatic increase. Noise however.... was dramatic and very enjoyable. Head turner is an understatement. Drive it sensably.... no one would know.

[chris4b]

Thanks to everyone for the info in this topic. I am new to this forum and have just bought a 94 V8i Disco. I want to get rid of the "grandad" exhaust system to hear some V8 music and was recently quoted about $1400 for a new system including headers, 21/2" pipe and a flow through muffler...... Don't think I will be shopping there.

[blitz]

I went for Genie tuned extractors, 2 5/8" single system straight through exhaust and no resinator.

The only reason why it uses more fuel is because I had so much fun with the loud pedal. More power more torque and if driven conservatively better fuel consumption, but I dont drive conservatively.

and it sounds ssssoooooooooo much better, like really better

[HangOver]

I have an 81" RRC extractors, no middle box, standard rear box.
Sounds good to me, not overly loud IMO

[blackbuttdisco]

Yesterday while towing the loaded car trailer up a hill north of gin gin there was a strange smell inside the D1. Pulled up at the top, had a look around and found the rear muffler last hanging by a thread, (of rust). So I kicked it off as it was hot and carried on and the smell had gone. The noise!! It was ok when coasting along on the flat at 96 but as soon as we came to the hills and the V8 started to work, it was like having an F18 under the bonnet. It goes in today to get a new mufffler fitted to the rear.

[big guy]

A few RRC's back I did a 4.6 with Haltech and a very good friend owned a exhaust shop on Regency rd here in SA.
I did him a contra deal with a few cartons of wine and he did a killer system for me.
The car was there for 2 weeks during the quiet period for him and he had his apprentice doing most of the work I guess.
It was a custom full stainless mandrel bend system, extractors the lot.
Mufflers were Remus which came off a Merc 500SL where the new owner found them too loud and they fitted perfectly.
I/he did a 2.5 inch system and it was a work of art.
The mufflers were actually beautifully tuned and sonded great.
The more revs the better it sounded, not really louder but just like music-to my ears anyhow.
Only problem with stainless is that when I went through water, they cracked twice at the extractor side where it bolts to the heads.

Not sure how much in $$$ it would have been but for a car that you have for keeps, it was great.
He made sure the back pipe went past the body too, otherwise it would/could have droned in his opinion.

Greag was his name and he did a lot of show cars and hot rods etc, I still have not found anyone as passionate about exhausts since, but let me say one thing-- Do not go too loud as the rover motors like to pull at low revs and loud exhausts sound like boats in Land rover guise.

Good luck:)

[matthewk]

iv got the 95/96 v8i 3.9
i think mine runs the standard extractors down into a 2 1/4 lukey she sounds like it almost straight thro sounds neat

[MitchD1]

Hi,
I am doing alittle research and going by everyones comments i think ill go with a 2.5" system from the Y piece with 1 middle straight thru muffler (500mm long) and no rear resanator, but do i need to run a cat converter?
Cheers

[sheerluck]

Hi,
I am doing alittle research and going by everyones comments i think ill go with a 2.5" system from the Y piece with 1 middle straight thru muffler (500mm long) and no rear resanator, but do i need to run a cat converter?
Cheers

Didn't like the answer you got in the other thread?

The answer is no, you do not need a cat on a D1.

[blktbs04]

I know a bloke with a really good performance exhaust shop in Capalaba - does a lot of well restored US muscle cars. He tried to do a new 3 inch pipe and muffler and resonator that was meant to all be quite free flowing but not loud. I started it when he had finished at it was INSANE. I drive up the street and he stood there just shaking his head. It used to start off from the lights and people would look around looking for the ozzie muscle car and not finding one looking confused. Took it back cause I just cant pass myself off as 17. He said he couldnt believe how loud it was and had thought about it and reckoned it had to do with the engine being all alloy and putting out more noise than a steel one. He then changed the resonator and muffler to a more packed one but still good flow and the note was then very close to stock but better flow. I really like it now and its very liveable.

Be careful what you wish for cause there seems to me a big gap and no midway point between quiet and throaty to outright insane.

Cheers

Hi mate I know this is an old post but just wondering who the bloke in Capalaba is we are looking to put a full system on our disco 2 and as mentioned in some of these posts some shops get weird when it's a Disco I think if it's not a Toyota or Nissan they don't want to know about it.

Thanks in advance.

[ozscott]

Yes mate Brian, owner of Exhaust Innovations. Cheers