Need some advice on a v8 exhaust.

fr8liner, Jan 29, 3:50pm
Hi all.

we have just bought a 2000 vt v8 holden, we are going to take it into a few places next week to find out what we can do to get the 'grunty' v8 sound from the muffler as it only has factory pipes, we were wondering if any of you have done this! We know that we can put a big bore on but we are looking for a slightly cheaper option! Do you have any suggestions we can mention to the shops so we sort of look like we know what we are talking about ;) THANKS

big.b-lil.c, Jan 29, 4:10pm
drill a big hole in the muffler.
truth is i cant realy help. do ya want the sound or are ya after better performance! if just the sound even pitstop should be able to help

electro2000, Jan 29, 4:28pm
lake pipes

brokebloke1, Jan 29, 4:41pm
hahaha saw a set of these over xmas on a BA falcon XR8 in Timaru.
the guys living in the 70's

wrong2, Jan 29, 5:48pm
mufflers & exhaust pipes are easy to make from relativly cheap supplys

but once made they are charged out for a fortune

your cheapest option would be to have a go at making replacement mufflers yourself . its immensly satisfying & one of the performance features of your drivetrain you can improve on with basic tools

cowboy110, Jan 29, 6:25pm
Just remember that if you get it wrong you'll end up with a god awful drone inside the car.You'll wish you'd left it alone.

skyline_guy_r34, Jan 29, 7:36pm
Out of curiosity how much did it cost you! I have a 2000 ss commodore with the 6 speed manual that im looking at selling so keen to get the knowledge on sale price from someone who just bought one.

My commodore has Genie headers with a full twin system with balance pipes pretty much exactly as described above. Except I have a feeling mine may be 3inch not 2.5inch. I absolutely love the sound, no drone in car, but shit what an awesome sound for the chev engine. not as good as the old 304 engines though.

fordguy17, Jan 29, 7:46pm
X-pipe into twin mandrel bent 2.25" piping, one straight through muffler either side. Done. Perfect sound. X pipes merge the gasses and generate better scavenging than H pipes. I have a full system from Magnaflow if you are interested ( x pipe, mufflers and tips). 2.5" is good, but if you don't plan on doing any engine mods, twin 2.25 will be more than enough.

fr8liner, Jan 29, 7:50pm
Thanks guys does anyone know if i took the rear muffler off and replaced it with straight pipe would make much difference!

fr8liner, Jan 29, 7:54pm
Ours is a 6spd manual with the gen3 5.7 also with 75000kms and we paid 19k.Their is another around here for sale exactly the same with a few marks etc with 130000kms for $16990 hope that helps :-)

fordguy17, Jan 29, 7:55pm
Would probably drone a bit. If you really want to go on the cheap,run a dual 2.25" press bent system with two hot dog style mufflers (resonators) in each side, will sound tough as. and cost you under $400

fr8liner, Jan 29, 7:57pm
After the sound :)

fr8liner, Jan 29, 8:02pm
Yeah a mate of mine suggested that also, was trying to see what some options were for when we head into some places. thanks for your help :)

clark20, Jan 29, 8:24pm
Look what is being done to reduce drone, photo half way down shows the J pipe, and it works.

http://forum.grrrr8.net/showthread.php!t=10801

wrong2, Jan 29, 10:49pm
you need to be carefull typing stuff out like that , unless you have made mufflers you dont really know what makes noise & what doesnt

resonators , like mufflers vary wildly in design , & the end result sound is entirely up to the design

skyline_guy_r34, Jan 29, 11:27pm
Cheers for that mate. Id love to get that much for mine haha. Mines just ticked 130,000kms too. Im guessing you bought that one in canturbury that was for sale that an older guy owned!

Wonder if I would get $15k for my one up here in the north island.

clark20, Jan 29, 11:44pm
What I would do is see if you can get a HSV system off a similar model. There are guys upgrading all the time and the old ones come up on trademe now and again.

fr8liner, Jan 29, 11:57pm
Yeah think it came from geraldine, he traded it in on another car from the dealer we got it from. Its in great nick, just needs a grunty v8 sound! Its been well looked after.

lol worth a go

ade32, Mar 23, 1:38am
Sounds like you have my old car there, Dont be fooled even the factory exhaust makes a good sound outside because its a manual. I have had several v8 commodores and if you not prepared to spend the money ie $2500 to $3500 for headers and exhaust leave it as cutting bits off or addding mufflers wont help, but if you get the full package you will get 20killiwatts more grunt and save gas plus upset your neighbours I suggest you go to magoo mufflers or talk to V8 commodore specialist in chch Kevin Geary Performance 03 3481367

pico42, Mar 23, 2:12am
Start by replacing the exhaust bearings, it can make a world of difference.