JerseyDrew77
Autocross Champion
- Location
- Virginia & NC
- Car(s)
- 2016 TR GTI S 6MT
The difference is it will eventually melt and cause issues on cars with big power that race. WRC, as scrllock pointed out, are required to have them but NHRA and NASCAR don't use them.I'm still skeptical - your car is big power/race car basically. If you had a high-flow/high-quality race cat I bet thet difference is marginal. I believe the WRC guys all run cats on the rally cars.