Hi,
Im building 2.5L for my S2 nowadays and got some questions for choice of exhaust manifold. Im considering a SQ manifold with the use of EFR 7670 or maybe the 8374. A friend of mine got a similar setup on his 2.2L with SQ manifold ( MTM version ) and EFR 7670 and got about 500whp and huge powerband before the turbo was empty. He said that the SQ manifold was a bit tight in the collector and therefore its stops the top end power.
Is there any other or better versions of the SQ version that flows better? Or got a better solution for the collector regarding flow ? Im talking about the T3 version.
I want to have a cast manifold on this engine because of the OEM look , shape and durability. I`ve seen CP-Service delieveres tubular manifolds custom build for the EFR turboes. Anyone tried them out ?
My goal is about 530-600whp on 98 and wath/meth. Huge powerband is essential.
Thanks in advance
Im building 2.5L for my S2 nowadays and got some questions for choice of exhaust manifold. Im considering a SQ manifold with the use of EFR 7670 or maybe the 8374. A friend of mine got a similar setup on his 2.2L with SQ manifold ( MTM version ) and EFR 7670 and got about 500whp and huge powerband before the turbo was empty. He said that the SQ manifold was a bit tight in the collector and therefore its stops the top end power.
Is there any other or better versions of the SQ version that flows better? Or got a better solution for the collector regarding flow ? Im talking about the T3 version.
I want to have a cast manifold on this engine because of the OEM look , shape and durability. I`ve seen CP-Service delieveres tubular manifolds custom build for the EFR turboes. Anyone tried them out ?
My goal is about 530-600whp on 98 and wath/meth. Huge powerband is essential.
Thanks in advance
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