One of many fastest, most straightforward, and greatest mods you can do about the RB26 is update the downpipe. A full 3” downpipe will enhance torque and horsepower, while also letting for raising turbo spool.The RB engine family members involves one overhead camshaft (SOHC) and double overhead camshaft (DOHC) engines.[4] Equally SOHC and DOHC va