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Got the car dynod today after getting a JB4 installed on the map 1 configuration, and disappointingly it only pushed 352 whp on a 5th gear pull, and 344 on a 4th gear pull. For reference I'm running a catless downpipe, cold air intake and the jb4 on map 1. I was expecting somewhere in the mid...

Looking to get my hands on a JB4 with the Bluetooth adapter. DM me If you have anything available.

Maybe I'm overthinking this with what I know about mechanical systems from the navy, however I'm picking up a full titanium catless downpipe today and was wondering if that would cause any corrosion to other exhaust components due to dissimilar metals.

First of all this is my first message to anyone in this thread. I recently got a 2023 gr supra 2 weeks ago and absolutely love it. In the Socal area do the owners here have any modifications to theirs and if so what ones? Alot of the things ive seen are downpipes, jb4, air intakes, or exhausts...