Quote:
Originally Posted by jiajesse0923
What is AR DP? I have the 335i performance exhaust on my car, will it fit my car? What does it do?
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AR Downpipe and Performance Exhaust are two different things. You should get the DP. Downpipe adds real hp unlike exhausts 5hp gain, DP adds like 20-30 and adds a deep rumbling sound I guess.