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Muffler Suggestion?

dk.boi

By dk.boi,
in Engines & Forced Induction

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dk.boi Apprentice

dk.boi

Posted
Posted

Hi,

Ive recently bought a r34 25gt, the previous has removed the original muffler and replaced it with some cheap dodgy one. I am planning on replacing it.Do you guys have any suggestion from something that is value for money? I am also on my red p's. will I become cop bait, if i change it?

Thank you

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https://www.sau.com.au/forums/topic/318682-muffler-suggestion/
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-Jimmy- Mentor

-Jimmy-

Posted
Posted

If I was you I would be replacing the system from the cat back. You'll be able to either get a custom one made up or perhaps find an aftermarket japanese system on the forums etc.

Most people will tell you not to go any bigger than a 2.5" system on an NA car like yours however I'm running 3.5" HKS on my RB25DE and my mate has a Blitz system which is 3" and they both perform fine. That said, my brother is using a custom 2.5" catback system and I can definitely notice more response and power down low in the rev range.

How much do you have to spend? A custom mandrel bent catback from an exhaust shop will probably charge you around the $500 mark give or take a little?

Hope that helped a bit.

mad082 Grand Master

mad082

Posted
Posted

i'd go something like a 2.5" lukey performance flow. it's an oval muffler and not a cannon, so should help reduce police attention. also being an oval muffler it will be a touch quieter than a cannon. i recently got one put on my SSS pulsar and along with 2.25" piping (and 2.5" muffler) it is quieter than the old 2" system that was on there with a smaller bodied 2" oval muffler. also shouldn't cost that much to get fitted. i was quoted $120 for muffler and fitting at my local muffler place, but ended up being a bit more cause i got the extra piping done (ended up being $170 all up)

SKiT_R31 Experienced

SKiT_R31

Posted
Posted

I love magnaflow mufflers, look and sound. Oval straight through centre offset, they're a mandrel preforated pipe that are fibreglass packed and use absorption to reduce noise, and that type of muffler (straight through) gives the best performance (minimal backpressure).

I've got a satin stainless one at the rear, and the biggest (longest) hotdog resonater i can find before the diff. It's a 3" system on my RB30DE, sounds unreal, you'd obviously be after a 2.5" though.

http://www.magnaflow.com/02product/univers....asp?shape=oval

http://www.magnaflow.com/02product/shopexd...ain&id=8517

My car is quite loud (however its slightly different to a standard rb25de) but has absolutely no drone, it just rumbles down low and screams with revs. I'll change the hotdog to a centre/center straight through at somepoint, just to quieten it down so its more street drivable (when i want to street drive it, down the track).

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