just got to thinking about the adapter peice that comes with the greddy evo2 exhaust. this is the one thing that pissed me off about my exhaust. if anyone doesnt know what im talking about the base model comes with an extension to lengthen the exhaust system, the sh does not. when i got the exhaust in i noticed the adapter looked pretty small in diameter to the rest of the exhaust so i measured the ID diameter. it measured friggin 2''. which i think is complete bs seeing as how i payed for a 60mm exhaust. my question is how much of a bottleneck do you think this would cause even though its just a short piece?? enough to hurt performance or hp numbers? i know how detrimental a bottleneck can be to performance. when i had a stock cat/exhaust with my huge rmf collecter i lost a good 20-30 estimated ponies.