Mishimoto Transition Coupler 2.5-in to 3-in Red | MMCP-2530RD CT Tuning This problem is solved by

This problem is solved by the IAG Equal Length Header's equal-length tubes

Part #: TS-TBS-018

Inner Layer - Rated 1800°F Direct Heat / 2300°F Peak Heat

Subaru WRX or STi 2002-2007

which are integrated into one housing

Mishimoto Transition Coupler 2.5-in to 3-in Red | MMCP-2530RD CT Tuning This problem is solved byMishimoto has developed silicone couplers which can be used with a variety of pipe sizes and bends. Whether you are looking for a transition, straight or angled coupler, Mishimoto has the perfect silicone replacement for you. Their silicone couplers are made from the same heat resistant embedded fibers as their silicone hose kits, so you know they are durable and can withstand the toughest conditions! Features: INLET I D 2. 5" OUTLET I D 3" INLET O D