Supersprint Sports Back-Box (G29 Z4)
Supersprint Sports Back-Box for the G29 BMW Z4 M40i. This back-box features greater flow, improved sound and a more purposeful appearance than the original. Retains the factory valve system and deletes the restrictive GPF. Quad 80mm tailpipes.
Hand-made in Italy from premium T304 Stainless Steel. Lead time 2-8 weeks.
Available on back-order