Can someone with experience please explain the pros vs cons? Im presently running the JB4 and I have access to E85, so I can run MAP3, but I can't help but wonder if I'm leaving HP/performance on the table that I might be able to enjoy with Lozic's tune...for transparency, I don't have Draggy, nor have I dyno'd the 2.5T, but im a bit skeptical of JB4s published output on MAP3. My butt dyno says "maybe 40hp"- which I feel is fantastic with such a low price for entry- NO REGRETS! BUT... is there another level of fun I'm missing out on??
TIA
TIA