Produktbeschreibung

Back-pressure reduction in the most important place, DIRECT after the turbocharger!
Since the original precat represents a needle eye in the exhaust directly after the turbocharger, this spare pipe is MUST for optimum performance and responsing with the Z20LET/LEL/LER/LEH.
The responsing of the turbocharger improves noticeably and the turbo pressure increases at all revs.

ATTENTION:
For ASTRA COUPE and ASTRA CABRIO at least an additional flange is needed for welding, which is not contained in the normal scope of supply. If the original catalyst is to be made again backpreparable, a second flange must be ordered. It must be welded in EACH case at least once.

For Astra H TURBO, Astra-G OPC, Zafira A OPC and Speedster turbo can the catalytic converter simply by the precat pipe be exchanged.

This product is not certified in the range of the StVO