took the heads to Ryan today.No cracks and a great price off Slab.Next on my list is a 3"centre section and backbox nothing too quiet.

 

Been told to get a RCM catch can apparently they are a good fit.Not had much luck in the wanted section so far.They are too expensive to buy brand new.

 

Plenty of much cheaper alternatives out there. They all do the same thing.

 

Cobra exhausts
are they loud?
are they good quality?
anyone got one on a Newage?

 

I had the Cobra SB04. Sounded great, fit well. Passed all track day sound tests. Not loud but definitely not quiet.

 

Nur spec R could be what i will go for.I need it to be 3".but they seem to be 2.5" or am i looking in the wrong place?

 

No they are 2.5 bore afaik

 

Oh well I will have to look elsewhere.

 

Nur Spec R is actually more than 3". It just tapers to 2.5" to join the standard system.

I also had a Nur Spec R system, I had the 2.5" cut off and made true 3" to join my true 3" long downpipe.

If you had said you want a loud exhaust I would have gone straight in with the Nur Spec R!

Nothing quite like it in my opinion:

 

Have I been watching you at Curborough in the wet on you tube ?

 

Most likely..

 

They do sound good, bleddy loud though lol

 

Nur spec R it is then.
Now to see who is doing the best deal

 

Are you planning on doing track days?

 

No trackdays.
Would it be too loud?

 

Most definitely too loud.

Hence I also had the Cobra SB04 to guarantee my being able to hit the track.

 

There won't be any trackdays.

 

Spoke to Alyn at ASP today and paid my deposit for a 2.1 stroker build.
Just got to keep gathering other parts I will need.

 

looks like Revolution Gateshead do the best price on a Blitz nur spec R.

 

had another look at the spec R centre section in the ad it says 80mm which means its too big i need 76mm..Back to the drawing board.Perhaps do the same as ScoobyDoo69 and find a decent welder.

 

Another problem !!
The heads I bought are off a 2.5 I need them for a 2.0.My Fault !!
It's a pity because they are in vgc no cracks.

 

2.5 heads not compatible with the 2.0 at all ?

 

subaru made the plug holes deeper, hence they dont crack like the earlier heads and use evo fitment plugs

 

My nur spec r was defo 3" as I had the taper chopped and a 76mm piece welded in, 80mm would indicate its 3.15"

 

80mm is right I believe. Tapers to 2.5" for standard centre section, but the pipe itself is a true 80mm.

The 3" pipe that replaced the 2.5" section of mine was definitely smaller than the rest of the centre section.

 

It looks like I will be having a forged 2.5 built.

 

Good choice Dave, far better torque from the 2.5 are you going for a closed block conversion?

 

Yes Ty Alyn at ASP is sorting it.

 

Cant beat a proper forged 2.5

 

I hope you are right.