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      10-19-2020, 11:31 AM   #4
DrHeLpErZx
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Drives: 2018 BMW M5
Join Date: Jun 2012
Location: Texas

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Quote:
Originally Posted by taw6189 View Post
Quote:
Originally Posted by DrHeLpErZx View Post
Yeah that's in the right neighborhood for stock. It's with a tune and downpipes these really wake up!
Thanks for the reply boss, it is comforting to hear that my times are normal. I get a trap speed of 126 for the quarter-mile, that also makes me feel like my car's a bit slower since others have seen 128+ but i guess these small differences are within acceptable reason.

Do you think ill see any noticable performance gains with just the downpipes? I dont want a tune, i just want the car to be as fast as it could be stock-ish
Catless you'd get the most gains but also throw a check engine light if you don't tune I'm pretty sure.

Catted I think in the 10-20whp range untuned? Someone correct me if I'm wrong.

Have you considered a piggyback like a JB4? You could get the performance gains of an OTS tune basically without touching the ECU
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