06 GTO TT427 low boost dyno. 629 at 10psi

ERL 427, 4L80E, 9" IRS, twin Precsion 6765's.

[@OneGuysGarageNate]

Turbos spool instantly on the street. Definately not topped out. Just uploaded another vid of 841rwhp.

[@TheOperator150]

Sick!! Whats the spool like on those turbos with a 427?? Also, are they maxed out of air at the top of a pull? Again, bad ass build!!

[@stevenholston5590]

did u make that cold air intake