Hi Guys,

Just got my xr6t ute wohhhoooooo. Its a BA manual. It has a generic tune and a process west fmic. Im thinking of changing the cat but am unsure if I need to retune it. It sounds like I do looking at these posts but would like to know 100% and if I do who do I take it too.

Thanks

Why are you changing the cat?

Oh and congrats What colour?

Edited 10/09/07 01:39 PM10/09/07 01:39 PM by tab

Why are you changing the cat?

Oh and congrats What colour?

Just reading all these threads and id say its holding me back. It got tuned and pulled 249kwatw (so the seller said)

Its citric acid in colour

While changing the cat for a high flow unit will help, the standard injectors will your first item that will limit power. Valve spring may be a issue but every car is different for these.

Standard Injector limit 260kw approx

Standard Cat limit 300kw approx

Edited 10/09/07 02:34 PM10/09/07 02:34 PM by seventytwo

I wouldn't drive very long with a CAT swap over with out a retune.

Mine over boosted like a mofo.

I'd get injectors and a CAT then get it re tuned and would get rid of that generic tune.

BF standard cat limit.. 267rwkw

While changing the cat for a high flow unit will help, the standard injectors will your first item that will limit power. Valve spring may be a issue but every car is different for these.

Standard Injector limit 260kw approx

Standard Cat limit 300kw approx

Im only looking for approx 280kw so ill do the injectors first then and may even leave the cat.

Do I need to retune the car after I put the injectors in?

I just replaced the standard cat last week and it sent my existing 10psi tune to over 13psi before I backed off. Now with the standard tune in it goes to 7psi-(custom tune next week).

Take your new injectors with you to the tuner asap for a custom tune.

A big YES to both.Why not save a little bit more and get them both done at the same time,then retune.

Edited 10/09/07 11:40 PM10/09/07 11:40 PM by velociTy

I will do that, makes more sense that way.

Do you think I will need valve springs before the tune or are the factory ones ok?

Any reputable tuners down Wollongong way if not who do I see in Sydney and what would a tune set me back?

Thanks for all your help guys, the bug has bitten and wont let go