Garage Whifbitz T4 twin scroll twin wastegate stainless steel exhaust manifold, made in the UK to our own spec and comes with a 5 year anti crack(subject to useage) warranty from point of sale.

Spec is the same as the single wastegate version: T4 divided turbo flange, 4mm walled stainless steel construction, 321 stainless primaries, 321 stainless collector, triple pass welded and back purged for seamless internal welds, flanges are 12mm thick 321 stainless, we believe this is one of the highest quality manifolds available in the world. Tested back to back against an HKS T4 manifold our twin scroll manifold made 1.6 bar boost 500rpm earlier and an peak torque about 1000rpm earlier.

As you can see from the dyno sheets below this improves spool up which is great for all applictations, be it road, track or drag cars. This means you can run a bigger turbo pushing bigger bhp/torque figures and and still have great low down response and driveability.

Can be supplied as a complete kit also.