drilled divider - holset internal wg'd exhaust housing
 

anyone drilled out there divider so the wg port is open to both sides? i think it helps to lower stock wg boost? im not sure, maybe this only effects stock truck manifolds where the runners are divided in the collector so 3 runners are not wastegated?

http://www.dieseltruckresource.com/d...threadid=57304


http://www.dieseltruckresource.com/p..._port_back.jpg

Re: drilled divider - holset internal wg'd exhaust housing
 

Don't use the stock wastegate hole, too small for a gas application.

Re: drilled divider - holset internal wg'd exhaust housing
 

did not know that. external gate it is i guess.