Brock.
I agree, Brock sells a complete exhaust system with a pre-mapped PCV for 89 octane pump. You have a choice of 3 maps, street, street/strip or strip only.
I got the PCV with the street map for 89 octane pump with my full titanium system from Brock and I am extremely satisfied with it. Stock exhaust weighs right around 47-48 lbs.................Brock's Titanium system/single titanium can weighs in at 8.5 lbs. BIG weight savings as well.
Ask for Steve in Sales/Tech.......or just dial Brock's Performance and follow the prompts and dial his extension - 105. Tell him Dave H. sent you.
No, I do not work for Brock's but I got my BST Carbon Rims from them as well.