I just finished the install of BFE Headers, BFE Hi Flow Cats, and BFE X-pipe. They're connected up to Borla S mufflers and the sound is absolutely incredible! The weather here in Mass isn't the greatest so I only had a day to play around with them. Cruising on the highway there's a small increase in sound, but step on the pedal to speed up even the slightest bit and the car sounds crazy. At anything near WOT the sound is amazing. The fit was perfect and the only issue I ran into was a problem with the bolts which came with the kit. The threads stopped halfway down the bolt and the nuts would bottom out before the clamps became tight. Easily solved with replacements, but something you may want to check on before getting ready to bolt everything up.
I'm a happy camper with the sound increase, but I probably won't be so happy once my wife goes for a ride with me
