The stock turbine outlet pipes internal diameters are small and restrictive which raises the secondary exhaust pressure. When the secondary exhaust pressure rises it will cause...
Apexi test pipe is constructed from stainless steel and is a great addition to any Apexi exhaust system.
304 SS Downpipe (3306-SN001) by HKS. Material: 304 SS. Pipe lnlet Diameter: 2.8". Pipe Outlet Diameter: 2-3.2". Reduction of secondary exhaust gas back pressure will improve...