 Re: Screamer pipe
your set up is different to mine and i am sure this means different rules apply and you are far more likely to know whats right for your car than I am
On mine the exhaust sytem is stainless and has been designed from the mainfold back . It is 80mm and virtually straight back to the rear box because on my car ( a Nissan stagea with a RB26dett engine) thats the natural shape of the pipework. Because it is large and straight through ( to the rear box) and the turbos waste gases join at a better angle than 90 degrees I dont think I have back pressure issues.
Whilst I am not running silly boost it is above standard level and I was advised the recirc valve should be replaced with twin BOVs ,
Re noise Yes it is loud, Infact it is probably too loud up to 3500rpm when the turbos come in . It then gets quieter because the exhaust is directed through the turbos and then re enters the exhaust in a different way. I cannott explain why but it really does make a noticeable difference and is weird the first time you experience it. |