Hey I thought i would post this up for your own good. When I installed my SLP catback on my car I noticed that there was a little diff fluid around the base of the diff. I thought what most guys that and there is none on the floor so it can't bet that bad. Well a few days later i went to the track and made 6 passes, I had a little wheel hop but thought nothing of it. the following morning i come out to go to work and diff fluid is all over the garage floor :shrug: . I had the car takin in on a flat bed only to have my warranty denied because of the pulley. After I got the car back home in the garage I took the rear end apart and found on the diff cover a 2 to 3 inch hairline crack. So for all of you who have leaking diffs I would check them around the base for any cracks. I thought i would let you know before you have the same thing possibly. Also installed today BF IRS BRACE