Barnesy

Can a Blitz nur spec r be converted to fit a full 3 inch system, from turbo back on a uk sti8.
Cheers

gotmashed

yes if you know somewhere to cut the 2.5in bit out and weld a 3in bit in its place

scoobchrissy

iTrader: (1)

Yes i had it done to my old 02 WRX, scoobyclinic did it for me

swifty.....!

iTrader: (4)

yeah very easy job had mine done took them 20 to 30 mins cost £40 and exhaust flows very well was told this by andy.f when had remap done. and the noise is brilliant makes it even louder!

Ian

iTrader: (10)

does it make that much difference?
i have got a 3" decat down pipe then it joins onto the nur spec 2.5" then back to 3" for the rest of the system.

would i gain alot from changing it?

swifty.....!

iTrader: (4)

your always better having a true 3" as when it goes up and down it messes with the gas flow. think of it this way when your having a drink through a straw if you nip it half way down the straw you have to suck harder to get same amount of drink so same applies to exhaust

GariYaRally

Some people might disagree, apparently going down to a 2.5' system and back up again gives better lower end torque. On the other hand, a full 3' system would be better suited for +350bhp......... I sit on the fence on this

swifty.....!

iTrader: (4)

the best exhaust are either a true 2.5" or 3" which is best for 350+ what i have on mine

Risk Taker

You do not have to weld in a new 3" piece as both parts are use the same size flange and will bolt up without any probs,
However, as has been said, 2.5" section will be better for lowndown/mid range torque but the 3" will be better for outright power.


BTW, I hope you have got ear plugs/defenders with this exhaust !!

Barnesy

Where abouts did you get it done?
What downpipe and second decat pipe would you recommend to go full 3 inch?
Cheers

swifty.....!

iTrader: (4)

got h&s to make 3" de cat downpipe and de cat pipe but to be honest i found them quite poor quality had to get alot of bits sorted to make them fit i got alpha tyres in leeds to weild 3" section in which was £40 but top class job but while there found out they make a 3" downpipe, cat pipe and when i had a look at it thiers it was far better quality than h&s and cheaper

heres there info
ALPHA TYRES AND EXHAUSTS LTD
UNIT 470
TAINTON PARK TRADING EST
GELDERD RD, LEEDS
LS12 6HD
Tel: 0113 2440909