ar design BMW 135i/335i 3" Hi-Flo Catted Downpipes
We are extremely excited to present our 135i / 335i 3" Hi-Flowâ„¢ downpipes, now with Magnaflow race cats! The only TRUE 3" catted downpipes currently on the market! In addition to an intoxicating and exotic sound, these downpipes add significant power and virtually eliminate turbo lag, making the fabled N54 engine even more responsive!
DIY Video from the boys at ar design to help with install
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