Originally Posted by Crucial Racing
Quicker spool and better response for certain. Hopefully a couple/few hundred rpm of quicker spool. Engine bay temps will drop. In theory there should be a power improvement also because of the increase in efficiency and reduction in compressor outlet temps. It's hard to pin down numbers because they're small differences and the cars vary that much run-to-run on a dyno without changing a thing so when you're talking about HP that you can count on one hand it's basically not proveable or consistently repeatable. We don't market this as a power mod for that reason. It's spool and response and thermal management... But remember that a few hundred rpm of quicker spool means a bigger powerband and it does mean that you are adding significant amounts of HP in that rpm range and often it makes a touch more up top also.
One thing about Crucial Racing I have always liked, very good about giving thorough info on questions asked. Thanks for the info!!! I don't have the $ for this now, but maybe in the future.