Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post - anyone use Perrin cat back 2.5 resonated with Perrin cold air intake?

NoHaveMSG · 02-20-2018, 11:08 AM

My car had the Perrin CAI when I bought it. It throws the MAF scaling way off. Don't buy it unless you plan on having to tune for it. LTFT were off 10% across the board.

02-20-2018, 11:08 AM	#4
NoHaveMSG Senior Member Join Date: Jan 2018 Drives: Crapcan Location: Oregon Posts: 11,612 Thanks: 18,894 Thanked 16,899 Times in 7,691 Posts Mentioned: 112 Post(s)	My car had the Perrin CAI when I bought it. It throws the MAF scaling way off. Don't buy it unless you plan on having to tune for it. LTFT were off 10% across the board.