urs4 exhaust

[chris]

I have a 3 inch second hand stomnum? exhaust from my old urs4, i know it will fit the rear section on my current urs4/v8, with an adaptor pipe from cats back to the 3 inch rear sections, question is am i going to impede gas flow from the current twin box twin 60mm pipes set up on the v8, going to the cat back 3 inch ?
any exhaust expertise appreciated.

[UrS4boy]

Chris: Thread jack. I am ready to complete your VIN / build tag document. Just waiting for the engine number.

[chris]

s4

no idea where it is , any clues anyone, 4.2 v8 ur s4,

[UrS4boy]

no idea where it is , any clues anyone, 4.2 v8 ur s4,

As I suggested earlier, should be on one of the heads.

[goodall]

A simple y pipe wel made with a acute internal angle will flow plenty through a 3" on a V8

[chris]

ur s4

Thanks for the info,acute angle? is that relative to the cut/weld.

[Rusty]

If it's 2x 60mm pipes then 1x76mm is a smaller area... 5654mm^2 vs 4536mm^2

[chris]

urs4

im hopeing that cooling exhaust gases will continue to flow well in to the 3 inch back boxes?