What's your setup? A basic bolt on cars will all generally be around the same power. Botti makes fast cars 100%, but so does Payn, Visconti, Twisted, Marin etc. Lol
Id like to chime in O_O
Marshall and Visconti are doing a great job with these and I recommend plenty of people to them for this service. They streamlined it and make it a good experienced for the end user not a nightmare like when I tried. Ill stick to JB4 and parts :D
Fact is they kicked...
I have v4s in stock and can ship today :)
https://1fastsupra.com/products/rexpeed-a90-a91-mkv-supra-v4-carbon-fiber-spoiler?_pos=1&_sid=35c8b08d8&_ss=r
JB4 can clear the code but not disable it. Id recommend going with an AMS GESi catted downpipe.
I can put together a package for ya if interested.
JB4, AMS Catted DP or 1FS Catless DP, and a custom map for the jb4 :) (all parts in stock)