hi everyone ive had my evo 8.5 for quite a while now and recently replaced the clutch .... well since replacing im guessing my clutch can finally hold all the power im pushing which brings me here ... ive had the car tuned by my friend kunal .. best that i know ... but im guessing the clucth was bad back then ... well clutch would slip at high boost and now doesnt but it sputters anyone know what it could possibly be ... people are saying it may need at retune ... your help/advice would help thankz guys