Quote:
Originally Posted by benzy89
Starting to shop for E9x M3s & superchargers so I'll throw in my $.02. From S/C dynos, the X-pipe is going to be your biggest exhaust upgrade and should be done at a minimum.
If you have money to spend, obviously a full exhaust would expose everything your S/C has to give, but an X-pipe should be the 1st component if you have to buy in pieces
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Stock cats are very restrictive. X-pipe is good for as much as ~40-50hp in boosted situations.
Quote:
Originally Posted by SehrSchnell
I'd do a full exhaust, better suspension, sticky tires, and a BBK if you plan on tracking the car.
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Quote:
Originally Posted by STALKER
I might look into extra cooling if you track your car as SCs tend to produce heat.
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+1 on the oil cooling. These cars even in NA form tend to get hot relatively quick during extended sessions. For the street, it shouldn't matter.