Subaru has always been unique with their power-plant layout. Their horizontally-opposed 4-Cylinder engines lay flat and have a complex exhaust system. This was ideal for performance and space savings and created a one-of-a-kind engine note. However, emissions came in and Subaru placed a very restrictive Catalytic Converter before the turbocharger which drastically slowed down the velocity of the exhaust gasses and put a damper on performance and turbo spool time.
Megan Racing has developed an Up-Pipe which eliminates the Catalytic Converter before the Turbocharger. This allows the exhaust gasses to retain their velocity as they enter the turbocharger and spool the turbo quicker for a noticeable decrease in boost lag.
Constructed of T-304 Stainless Steel, this light weight replacement pipe is 2" in Diameter and features a 3" Flex-Section that reduces stress on the exhaust system and the tendency to crack under heavy-duty loads and extreme conditions.
The Up-Pipe also has the bung w/ cap for the OEM EGT sensor and is a Direct Bolt-On for the 2001-2012 Subaru Impreza WRX and STi. Please note that this product may not be emissions legal in your country.
NOTE: The EGT sensor hole has a M12 x 1.50 thread pitch. It comes with a plug should you choose to plug the EGT sensor. The o2 sensor thread pitch is the same as a spark plug thread pitch: M18x1.50.
- Constructed of Durable T-304 Stainless Steel
- Polished to a Mirror Finish.
- 2" Piping Diameter.
- 3" Flex-Section to reduce stress on the exhaust system.
- Accommodates OEM EGT sensor.