I don't understand how having a stiffer cold charge pipe would be bad for the car. While I would highly suggest having an upgraded RMM when doing ANY hard charge pipes, the silicone couplers should make up for any engine movement .
a few benefits of the charge pipe :
- Tbolt clamps and 5 ply silicone really help prevent boost leaks
-This pipe deletes the sound symposer. Why add the SS fittings when most delete them anyways.
-CNC map and vacuum line connections, hand tig welded. Tial and/or HKS flanges are also CNC and tig welded.
-CNC mandrel bent pipe
-Meth bungs welded in and plugs are included. Having them welded in is the safest way. Some people tap or do bulkhead style fittings that arent as reliable as a welded fitting. When you tap there isn't enough thickness to the pipe to get it in there safely.
We include a spec'ed out spring already in the BOV (for the tial). Both the TIAL and the HKS sound way different in the fiesta ST than on other cars, and I believe it is because the turbo is so small. The HKS is SUPER loud and the tial is also higher pitched. The still sound cool, but thats a matter of opinion.
For the install make sure that the pipe is all the way in at the throttle body, almost to the point that its butting up against the throttle body inside the coupler. When you go to do your next oil change, you will understand why.
I have been running both charge pipes for about 15k miles. No issues to report.
Please let me know if anyone has any questions, here or PM's welcome.