Sound Performance has teamed up with PHR and are now using their billet collecter on their F1 Manifold.  Their manifold is loosely based on the original RPS manifold, which was unmistakably known for the distinct exhaust note it produced, the F1 manifold takes a new perspective on a classic design.

Harmoniously balanced, the F1 manifold produces a highly unique smooth sometimes raspy exhaust note that sets it apart from alternatives. This alluring exhaust note is sometimes referred to as sounding similar to an F1 car. In addition to the exotic exhaust note, a number of additional improvements have been implemented into the new design to offer the highest quality product possible at an affordable price. Throughout the duration of the F1 project and SP's research, they have found that the original RPS manifold exhaust note is not always consistent and depends greatly on the rest of the supporting modifications. Cat-back exhaust choice, cam selection, port work, and oversized valves all influence the exhaust profile of a vehicle and can alter the sound produced either slightly or dramatically as a result. They have witnessed the manifold produce both a smooth exotic tone and a rumbly deep tone simply from different supporting mods. It should be noted that your vehicle may not sound exactly as the sample sound clips provided by Sound Performance based on this information.

CLICK HERE for sound clips of the F1 header open downpipe
CLICK HERE for Project summary thread on SP Racing Forum
CLICK HERE for Project interest thread on SupraForums

Features: -Brand New manifold -PHR Billet undivided or divided collector -NO Boost creep with SP twin entry wastegate design -QSV Compatible -Exotic F1 exhaust note

Optional: -Additional charge for Satin Black, Hi-Luster Silver, tungsten, titanium heat coating.
-Choice to build manifold with or without Quick Spool Valve compatibility. Having a full fabrication department, additional changes to the F1 manifold may be performed upon special request such as twin wastegate design, twin-scroll entry, or other variations. This service is offered by special order only.

** 7MGTE: Please note that stock oil drain will not work when using our F1 manifold. Recommend a fitting be welded to your oil pan. Also need to run a different oil dipstick (we recommend Lokar #625-XED-5012).