New Era Performance Custom 4.5″ Cold air intake for high horsepower (650 + whp) CTS-Vs. This is designed for modified, high horsepower CTSV’s. When you go to a 102mm throttle body and you are putting out more than 650 rwhp, it is definitely worth it. On our test vehicle, our 4.5 inch intake gained 17 rwhp and 17 rwtq! Some features about our intake include; 1 piece tig welded construction, it drops right into place just like our 4 inch intake does without any fitment issues, we also have a precision billet fitting welded on for the PCV line with this kit so that it does not protrude into the intake tube. This kit will be built out of aluminum and powder coated wrinkle black only as we have found this to be the most durable powder coat. PLEASE NOTE: It will take an experienced tuner to calibrate for this, especially with an automatic transmission. It WILL NOT work with the stock tune (our 4 inch intake WILL).