Quote:
Originally Posted by G MONEY
Seems low to me but I guess they would know? Just going by past cars I’ve tuned. Never saw that small of a gain.
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Modern catalysts are actually extremely efficient. Most newer platforms I've been involved with show minimal gains with downpipes.
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Blake - 2024 M3 Competition xDrive
Square 826M 20" Wheels, Dinan HAS, Dinan Midpipe, Dinan Axle-Back Exhaust, Dinan 10/12mm Spacers, SST Valve Controller