Will these clamps work with my existing exhaust hardware?

These are sized for 2.5" piping. Measure your exhaust tube OD before ordering—if your system runs different diameter sections, you'll need the matching size clamp for each joint.

Do I need sealant tape or paste with these clamps?

Not required. The screw mechanism tightens the band to compress the pipe joint. Some builders use high-temp gasket sealer for extra security on stock systems; others rely on clamp pressure alone. Test-fit first to confirm fit before deciding.

How tight should I turn the screw?

Tighten until the band is snug and stops leaking—you're compressing the joint, not crushing the pipe. Hand-tight plus a quarter turn is typical; refer to your vehicle's service manual if your system has OEM torque specs. Check for leaks after a few heat cycles and re-tighten if needed.