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Spark plug technology
whilst still allowing access to the oil filler cap and dipstick
The weight of the complete intercooler is only 6
These are a simple plug and play replacement
providing a similar look to the RS model front bumper covers
AIRTEC Motorsport Downpipe Sports Cat for BMW G Series – M2, M3 & M4 sti Spark plug technologyBy replacing the restrictive primary catalytic converters located in the original downpipes with specially designed high flow sports cats, back pressure is reduced, which effectively improves the engines breathing by allowing it to expel gases more quickly. This in return means faster throttle response, increased power output and a more aggressive exhaust note. Complete with replacement fitting kit, the downpipes will mate to a standard or aftermarket
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