https://ssnperformance.com/exh....aust-pipes-2008-2013
I am using these with my stock Nismo (test pipe/cat back) system. Gave the car some room to breath and still sounds stock ( no trumpets). Resonated test pipes may also be tuned to imitate the factory exhaust note, which is what some people are after when designing their cat-back exhaust system. Depending on whether you value horsepower or environmental sustainability more, catalytic converters are either the greatest or the least critical part of your exhaust system. Crafted from top-quality mate
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