i'm in the process of rebuilding my '90 turbo II s5, and i'm thinking of going with a to4r. i just wanted to know what you guys have used for turbo manifolds. i don't want/don't have the money for cast. so i'm just wondering what you guys think is the best bang for your buck stainless tubular

i see a lot of applications for fd's, but it looks like the wastegate piping and flange might not have the clearance to fit and may hit the firewall, i mean a 13b is a 13b right? as long as it has the clearance should i just use one made for a third gen?

i hear obx is respectable?

 

Cast manifolds are generally cheaper then tubular stainless manifolds. Unless you consider the eBay manifolds, which have hit and miss quality.

There are often cheap used cast manifolds for sale on this forum. Greddy, HKS, etc.

Yes, many manifolds designed to fit the FD will cause the turbo to bump into the FC lower intake unless a spacer is used.