After some considerable driving hours I just wanted to say thank you to RacerX. The overall performance has been amazing. This combined with the Full non cat HKS exhaust and equal length headers has been glorious. There is still some torque issues to be resolved but nothing as before. Pulls like a freight train once you touch 4k, with the OFT tune and larger TB. Going to seek a professional tune and optimize the system as it stands. Installation was straight forwards. Some hoses must be changed for its height and fuel rail brackets. A great alternative if you have some fabrication ability to make the overall assembly look at its best. You will have to make or change your intake. This has been the second best investment next to the exhaust that I have made and I extend my thanks once again to the crew at RacerX for the product they sent! Best regards.