STI PERFORMANCE MUFFLER (Low back pressure) For FORESTER (SJ) ST44300SF040 BG5 Legacy Touring wagon twin cam 139mm at the rear muffler

139mm at the rear muffler front

08 E51 · NE51 Elgrand 3

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05 MA70 Supra 3

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STI PERFORMANCE MUFFLER (Low back pressure) For FORESTER (SJ) ST44300SF040 BG5 Legacy Touring wagon twin cam 139mm at the rear mufflerBrand STI Product PERFORMANCE MUFFLER (Low back pressure) Product Number ST44300SF040 Description This high performance muffler boasts an airflow resistance that is at least 25% lower compared to the standard models, lower back pressure, and weighs approximately 2. 7 kg less compared to standard vehicles. While complying with the safety standards and Type 1 after market muffler performance tests, this muffler makes the engine more responsive to the