putting a fresh 1.6 NA in an 89 Jetta, looking for suggestions for a free flow exhaust setup for it. Don't want to go to big, maybe use the stock manifold with an RV code gasser downpipe and a Bosal exhaust for a 1.8 16V Jetta. Anyone have any thoughts on this? Not sure if the stock diesel exhaust manifold will flow enough. Want the engine to breathe better for the Giles pump that's on the way.
thanks