Does anyone have good recommendations for LTH. Do all need O2 extensions? Also if the BBK ones are any good. I’m hoping to get the ISR for Black Friday if they have any deals for it.

 

The best by design as going to be PPE, but ISR have proven gains and cost much less so its a popular choice. Fast Intentions are another option. some have used OBX v2 with good results too, but fitment is a big hit or miss.