I had 0 engine noise until i did lt's. thought i had an header gasket leak because the valvetrain was so loud. I guess they're thinner than the manifolds so you can hear more.
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2000 trans am A4|3.23's|ssra|lid|ported tb|hooker lt's|ory|magnaflow catback|tune
35/21mm swaybars|bilsteins|hypercoils|adjustable phb|adjustable lca's|lca rb's|sfc's|tq arm 340rwhp - 355rwtq uncorrected |