Standard Exhaust System Ford Is Good

[tquarrell]

Mine's an xr (03 auto sedan), it has siemens injectors ($450), typhoon cai (say $50), bmc filter (say $100), wogcooler ($450) and a walbro fuel pump (say $150) other than what was listed above. It has 263rwkw on 8psi, 283rwkw on 10psi and 299.4rwkw on 14psi (car had 203rwkw with wogcooler/typhoon cai/bmc panel filter otherwise stock on the dyno for comparative purposes)

The 14psi tune produces max power at 4200rpm (power drops after this point) due to stock cat and mk1 valve springs as noted above. I'm expecting about another 30rwkw with these fixed (then limited by the stock rods).