Wrx 2024 Sti Performance Muffler. A subreddit dedicated to all things wrx sti for sti owners and fanatics to discuss and share their car and experiences with them. When you purchase through links on our site, we may earn an affiliate commission, which supports.
Im buying a 2023 wrx next week and ive done the research about it. I read on a website that the sti performance exhaust adds about 16% more power and torque to the wrx.
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