please help me out. i am a bit ignorant in this regard. what are the benefits of each. which is ultimately better for max hp. downsides of each? i tried to search to no avail

 

The log manifold is limited when using high BOOST/HP setups, alot of people get boost creep, and the exhaust runners are not the same length. That allows the exhaust gasses to pressure the turbine altogether, and not in the pulses of pressure in which is optimal. Tubular/ Equal Length manifolds usually flow better, and allow a more constant flow of pressure on the turbine blades. And the wastegate is usually place in the collector which helps to prevent boost creep also....

 

Most tubes don't allow you to keep your A/C whereas most logs do.

 

Tubes are gonna run hotter due to amount of metal used so be prepared to have a hot engine bay. Logs do not run that hot

PS. I still have ac and powersteering with my tubes