BadAss 2.2L/2.5L Equal Length Runner Tubular Header Group Buy
The group buy headers will be thick walled stainless tubes with 1/2" flanges on both sides.
Performance:
HP gains expected to be comperable to 8valves' (Aaron Miller) similar header discussed in
this thread however supporting mods will vary from application to application so higher yeilds are possible.
Custom fab and parts required and not currently included:
custom downpipe
custom oil and coolant feed lines
custom coolant return line
custom oil return into oil pan
custom air inlet and outlet to intercooler piping
At a minimum one of Johnny's Polybushing front motor mount or solid welded front mount recommended especially if you're close to the firewall with your particular vehicle/turbo combo.
Clearances checked:
clears the firewall in an L-body with a T3/T4 hybrid
clears both Saginaw (metal resivior) and ZF (plasic resivior) power steering pumps
clears steering rack with stock style swingvalve 2.25" and even 3" TU unit
clears runners on 2-pc intake and 1-pc intake
clears small housing high torque starter/solenoid (may require mounting stud removal)
Disclaimer / Reality Check:
This is not a direct "Bolt On" header that you can have running in an afternoon unless you have mad skillz and resources. Build tolerances from vehicle to vehicle vary so just because it fit perfectly in the Shelby Charger we bolted it in does not mean it will fit in every car.