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Before spending any money on a "free flowing" exhaust, it would be very beneficial to first attempt to measure exhaust backpressure of the stock...
Heh, while my WRX is no M3 in terms of handling or power, it really does feel like a go cart compared to the Prius, and yes, gas mileage does suck...
There are a couple reasons I didn't spring for the touring model: 1. Price - Touring models are much more expensive. You're looking at a...
I'd take it all the way up to 7500 if your numbers are as good as the OPs! Unfortunately, oil color is not a good indicator of it's overall...
Look at the front springs: The front coils appear to be spaced vertically close to even. So no progressive rate from that. But the coils wind is...
There's nothing special about progressive springs. All that is required to build a progressive spring is to set some coils closer together than...
