The HKS stainless steel, equal length exhaust manifold for the Subaru WRX STI is a perfect compliment to any turbo boxer Subaru engine. This is a direct bolt-on manifold on the STI models or any WRX modified with an STI oil pan. Although not a traditional TIG welded manifold, it serves it's purpose very well from a construction standpoint and holds up against cracking and damage extremely well. The equal length runners will help shuffle exhaust gases out of the cylinder much more efficiently and helps with turbo spool and power throughout the entire RPM range. The boxer rumble is much less apparent with the equal length runner design now that the exhaust gases are not colliding mid exhaust stream.
- Fitment:
- Subaru WRX STI 2004-2017
- Hardware Included:
- Yes
- Material:
- Stainless Steel