Hi Im in process of buying a tubular manifold for my 16vt it's says for a t25 turbo is this my stock turbo or not ? Thanks

Nope.....
Yours is t3 buddy!
Are you looking for tubular manifold just cos it nice to look at or for performance?
If tge latter, really not worth doing unless your SERIOUSLY tuning the engine....
A ported standard log type if sufficient for 300+ bhp and will be a lot more sturdy than tubular which can be prone to cracking.

Nick

Ah great thanks mate

There seem to be T2 and T3 manifolds available now. I do wonder how a 16VT would go with a GT series.

Very good i would believe. You can get them with the same internally gated exhaust housing as the coupe so pretty close to bolt on.. Gtx3071 or 3576 would be fun..

Actually a tubular manifold starts showing its from as low as 250 bhp+ (ie. the point where you buy an uprated turbo), with much improved torque from practically off-idle, lower boost threshold, and lower eshaust back-pressure, allowing you to run more ignition advance with detonation.

The problem is the good tubular manifolds are expensive. So, for reasons of cost effectiveness I'd suggest living with the stock manifold up to 300 bhp.

...And before anyone says anything; yes you can make more than 300 bhp on the stock manifold, but then you can also run a marathon with a finger up one nostril, but it's pretty obvious why you wouldn't!

The ATP internal gate housing is a T3 type and just too big for a street car.

That would depend on whos driving wouldnt it?
No 76mm turbo will ever be an average "street" turbo, but if your planning for 500+ hp on a 16vt "streetability" isnt on the top of the list
And do you meen its to big cause its a T3 or because its a .72?

The housing is designed as a "drop in" replacement for low cost and convenience, generally suitable for road cars or lightly modified cars. For that purpose .72 T3 is too large and laggy. If you're planning 500hp, using a internal wastegate housing designed for the OE downpipe and manifold does not make a lot of sense IMO.

76mm compressors can be streetable, e.g. T3/T04E