Just got my '02 back from the performance shop with a new PC5 and two brothers slip on. Has 35K on the motor. Only managed 90 rwhp despite upgrades and K&N air filter. Kinda bummed. The Two Bros only runs through one of the cans, so the other is for looks only. It's not the "stash" can, so I'm disappointed on many levels. Sounds fantastic though, so that's a little comfort. Any one have any idea why my hp numbers are so low, or is this as good as it gets w/o a full exhaust or cat delete. PAIR delete and flapper valve done alredy.