For E50 engines found on various Puch mopeds like the maxi, newport, magnum,pinto, swinger, murray and many others. 70cc size will increase power dramatically. "No replacement like displacement!"
ZA50/magnum mopeds will need to use a Puch maxi flat exhaust manifold style exhaust as the mangnum stock exhaust manifold is angled.
Made in Spain!
Airsal # 02030745
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Straight out of the box ripper. Port timing on this kit is awesome, casting is
clean, and ports came already camphered on mine!
Out of box performance;
Airsal + phbg 19mm + estoril = 48mph (stock gearing) with a STRONG powerband
K-star + phbg 19mm + estoril = 44mph (stock gearing) with okay power
Dollar for dollar, best puch piston port kit you can run IMO