Hi Noname,
Nope i dont have it......but if you have existing dyno sheet and after installing, you dyno it another time.......if you get lesser hp than before....i will gladly refund you your money and you can return me the headers......but you gotta do it within a certain time frame le like within 2 weeks upon purchase......no questions asked.....thats my guarantee to you...
But i've sold many of them and none came back.....:)...
Just give me a call when you wanna view them of you can just go to my showroom in sunway.......i'll get my partner to attend to you.....
Thanks and Regards,
Kian