We have been using Vibrant's V-band kits for years and they have served us fantastic. They work perfectly on all of our NA and turbo exhaust systems!
Straight from Vibrant:
* V-Band Flange Assemblies are a popular and effective alternative to traditional flanged or slip fit tube connections. They work very well in operating conditions involving stress, vibration and extreme temperature fluctuations
* The V-band clamp design allows for a gasket free seal and the quick release feature of these clamps makes swapping parts at the track quick and easy
* Vibrant Performance V-band flange assemblies feature a unique "Male/Female" design to ensure proper alignment of the flanges inside the clamp
* Each assembly consists of two (2) V-band flanges and one (1) Quick Release V-band clamp * Individual Clamps Also Available