Quote:
Originally Posted by Nkponder
You may also want to look into a new intercooler, not sure what size the 50i has. I did the MHD tune on my 35i and noticed a bit of hesitation under acceleration, kinda like it was misfiring. So I added a Wagner intercooler, and smooth acceleration after that.
Downpipes are good too, I installed an AR Designs sport cat in my 35i. My thought was a sport cat would be a good compromise with performance and emissions, but I'm not sure how much it helps with emissions- I definitely have more exhaust odor than I was expecting. So you might as well go straight DP, significantly cheaper, just make sure to get ones with resonators.
Good luck!
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How was the sound with the DP? Is that why you suggest the resonators?