STi 7 4 into 1 manifold
#2
Scooby Senior
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Depends on the design - will likely move your spool point 100-500rpm higher up the rev range but pull much stronger through mid to top end.
It's always a compromise, especially if you're not remapping around it (remap can claw back 2-300rpm on the classic shape - not sure on the 7's yet). The owner of the 4-1'ed STi7 I've seen here didn't like the increased lag, so refitted OE manifold...and now doesn't like the loss of power. He's waiting for a remap now
Richard
It's always a compromise, especially if you're not remapping around it (remap can claw back 2-300rpm on the classic shape - not sure on the 7's yet). The owner of the 4-1'ed STi7 I've seen here didn't like the increased lag, so refitted OE manifold...and now doesn't like the loss of power. He's waiting for a remap now
Richard
#5
The difference between the 4-2-1 & 4-1 is the latter is more for racing with top end power and the 4-2-1 is for mid range and better alround. Not that there is a huge difference with a pressurized system on the turbo cars.
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