Hi all, I’m looking for feedback on the Roush stage 1 or Whipple kit. I know they don’t make the most power, but I want to stay CA legal for smog and they are both CARB approved. Also only ever going to see 91oct. Any info is appreciated.
Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.