Three Sevens Motorsport
Quality wins.
Products
Three inch mandrel bent Stainless steel downpipe for Merkur XR4TI with factory position Cosworth turbine housings. Purge welding ensures quality inside and out.  $375 Last one of the run now available to ship.

Cosworth WGA set "A"  $40.00

adapts your XR4TI threaded WGA to the Cosworth turbine housing. Here is a link to the instilation instructions:
Cosworth WGA set "B"  $45

WGA adapter set for Cosworth turbine to be mated to a T3 with a "rotated" compressor housing. Mat nickel plate finish. To be used with a GT28RS WGA, avail. in 7, 14 and 22 psi. break pressure.
XR4TI Cage bends. These are all the bent tubes you need to build a cage for your XR. Full race gutted interior application. All material is 1 3/4X .095 1020 DOM. $275


V belt pully alignment tool.

Helps perfectly align V pully fan belts. Made in America $27
Here is a link as to how it works.
10 degree 304 stainless steel taper cones in sizes ranging from 2"-3" priced from $10

T3 compressor outlet flange. 6061 T6 alloy .375 thick. Perfect for your DIY project.                                          $15
Holset HX35 split scroll CNC machined 3/8" stainless turbo flange. $55 ea.
Squirrel Nuts
Small hardware package makes instillation of the Cosworth housing a dream. These nuts have a 12mm hex opposed to the 14mm factory and 15mm common replacement (which makes instillation almost impossible)  $25