Thinking of swapping my Prodrive backbox for one, what are they like sound wise?

Fancy something a bit more vocal and I love the Spec R sound, but it's maybe a little loud for everyday use.

 

ya have a magnex on mine at the minute. Have been looking into the same thing as you. I'd only need the spec s as the magnex has pipe back to backbox too. Never heard one in the flesh so its hard to know

 

They sound crap in my opinion, just far too loud. A lad in town has one on his classic and just looks a bellend driving around.

 

Sold mine too loud. It is a nice exhaust but 113db at 5k revs means no tracktime with it on I've got a vid somewhere

 

So how much difference is there in Db level between the spec S and the spec R?

 

They're the same pipe The only difference between the two is the R has the accompanying mid pipe in 3" as well. The S is a 3" bore back box which connects at OEM 2.5" flange. The RX backbox is 2.5" I believe and quieter

Why not go for the new Vortex pipe. Looks pretty good from what I can remember

 

That's what I was wondering, the Spec S must be quite a bit quieter as it mates to the factory resonated centre pipe.

 

Why not buy a Miltek ? Sounds great.

 

I can't really see it being much quieter to be honest, maybe a few DBs.

 

My R was 98Db at 3/4 throttle, noise tested at Elvington.

 

Because the quality isn't that good and the price is extortionate to say the least?

 

According to the blitz website the spec S is 97db but it doesn't say at what rpm.

 

Personally I think the NUR Spec S (with a sports CAT & standard centre section with resonator) is quite a bit quieter that the NUR Spec R (Full de-cat). Did a side by side comparison a few years back, both on 2003 STi's, and there was a noticeable difference in volume.

Don't be led by that to thinking that the NUR Spec S is by any means quiet but its quite a deep sound and so doesn't seem as loud as some other makes I've heard.

Best to get to a few meets where people have different setups and sample them for yourself. That's what I did and decided I wanted one. I've thought about changing it for something a little quieter a few times but can't seem to bring myself to getting rid of it because I love the sound it makes.

Depends how much you use the car and for what as well. If mine was a daily runner or a trackday machine then I think the Blitz would have to go, but it's a weekend toy/hobby so I can put up with the noise.

 

Nur spec Is to loud get an afterburner vortex

 

Milltek no just noise just better

 

If you keep the cat on their not as loud as people make out.

 

I'm swapping my ninja 2 for a Nur spec R in January and can't wait