Aftermarket is OK. Alot of it is DIY, but it is simple. ex: swapping compressors from a Ford turbo (T-bird, mustang, XR4Ti), hard pipes to replace IC tubing, Megasquirt, open up the exhaust, etc. All the typical tuning tricks. There are more hardcore things, like using VW exhaust valves and other head work.
No trades. If you look in the back ground, you can see I already have an S5 in the garage
