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Hey guys i have a rb27 with 550rwhp and its very very loud with the single 3.5' cannon muffler i have on it at the moment, im after a super quiet sound without restricting flow as much as possible, i know its a hard combination but im willing to sacrifice abit of power to please the local residents and police ;) im going to remove the current cannon and use 2 oval mufflers.

im lookin specifically at the magnaflow race series range and fitting 2 of the 8"x5" oval s/s mufflers with single 4" inlet and 4" outlet, im just worried they wont quieten the noise enough.

heres the link to the ones im talking about...

http://www.magnaflow.com/02product/02race.asp (Part #14153 is the one)

anyone know any other places or brands that have decent mufflers in 4" in and out?

the race series are $116us each

any info appreciated

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Just get em made if you need something custom or to do a certain job.

There is no reason an exhaust correctly designed will rob you of any power.

I dare say thats what gonna have to happen with my car.

Everything else is custom made so i cant see it being any different for the rest, so it can be done... comes down to price.

And with your setup, cost definately shouldnt be an issue :D

I highly recommed speaking to Hitech mufflers. Australian made custom performance mufflers.

www.hitechmufflers.com.au

I recently change to a 3"hitech and its quiet at idle yet doesnt lose power up top

Also the car doesnt drone as it used to with the old exhaust between 2000-3000rpm

going to muffle that external gate too brad? :happy:

sounded (and smoked :wub:) like a dirty rotary on that cruise!

when are you looking at buying?

ive got a 4" in/4.5" out cannon on mine, but i want to go to a twin tip exhaust, so the dif back part is going.

i run (2) of the 6" diameter round 4" inlet/outlet mufflers on my personal car (RB26 w/ gt42R single turbo). it is quiet and sounds phenomenal.

if you want pics let me know ill post them up

I'd be interested to see them Geoff. Out of interest, which length mufflers did you use and have you had your car noise tested at all ?

I know this is a bit left feild, but in the past i used a truck muffler.

Now before u get all bent out of shape about it.. Donaldson truck stuff is VERY good. If you can track down a catalog, they go into great detail about their stuff. Noise surpression, flow rates, HP figures and all!

I used a 3.5 inch muffler under the back of an old project, and it was the best thing i bought for it! no drone, quiet but a very deep sound. I'm not sure if they make a low profile type, but its worth looking at..

I have not seen ANY other muffler makers do that much detail about their products!

check it out! ohh, most of their range go from 2.5inch to 6 inch!

I'd import a Jasma certified (or not) 5Zigen muffler. Go to 5Zigen's website and contact them they will tell you wat is perfect muffler for your car. I have a 5Zigen Border system and It's quiet when off boost and cruising and only loud when you put your foot down. And then you see other wankers around with crappy cannons and they make drone 24/7.

thanks for all the advice guys im going to give 2 of the magnaflow oval race series mufflers a go as i hate the cannon style ones on the rear and ill be painting mine black for the stealth look. hopefully it shuts it up alot, i found for 2 x magnaflow race series 4' in and out are $513 for the lot delivered from the US so not too bad considering a shop in Perth wanted $500 for one :)

mitchy im not after the cannon look as i said but i will check out yours if u come over on the weekend and see if its alright or not.

cheers

  • 1 year later...
thanks for all the advice guys im going to give 2 of the magnaflow oval race series mufflers a go as i hate the cannon style ones on the rear and ill be painting mine black for the stealth look. hopefully it shuts it up alot, i found for 2 x magnaflow race series 4' in and out are $513 for the lot delivered from the US so not too bad considering a shop in Perth wanted $500 for one :)

mitchy im not after the cannon look as i said but i will check out yours if u come over on the weekend and see if its alright or not.

cheers

Hey mate, how did you go with the magnaflow mufflers on your exhaust? Interested in doing similar.

Shaun.

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