out there so no numbers yet. I went with the 525s rather than my stockere because a friend here sold them to me cheap, and they're basically rebuilt stock with a bigger wheel different bearing. I had already bought his 3" SZ expansion pipes that were bored out for the bigger wheel. 525s are hit and miss from what I hear and these had had low mileage, never smoked, and no shaft play. Also they kept me in the e85 threshold for 740cc injectors and Walboro 485. Anyway with msp manis and ash planar/pipes/massives, it's really cool how loud they spool... kind of like a diesel truck. The goose honk killers blow off loud too from all the air. No lag at all with an instant hit... good times :)
