Porsche 981 Boxster / Cayman SOUL Long Tube Street Headers


Soul Performance Products Long Tube Street Headers are built around large diameter, free-flowing catalytic converters with long tube runners for maximum gains in power, throttle response, and flat-six engine tone. Add performance without throwing a check engine light!

+  Fits all Porsche 981 Cayman / Boxster vehicles (2013-2016)
+  Added performance without a check engine light
+  Direct bolt on installation – instructions included
+  All SOUL Performance Products components are backed by a renowned Lifetime Warranty for both street and track use

Porsche 981 Boxster / Cayman OEM Header Gasket Set

Optional genuine OEM replacement gaskets to replace your old or worn gaskets.

SKU: POR.981.STH Categories: , ,


DEVELOPMENT AND TESTING:  By creating a unique application for the 981 platform, we’ve focused on sizing the runners (2”) and collectors correctly to extract maximum power from the 3.4L engine while producing great gains from the 2.7L as well.

CONSTRUCTION:  Each header is assembled out of T304L stainless steel and rigorously quality checked in-house. Proven design elements including port matched flanges, smooth radius primary tubing, and collectors that optimize the exhaust flow all work in conjunction to maximize power gains.

BOLT ON AND GO:  Each set is tested in a fixture to ensure perfect fitment then foam packed to ensure they arrive in perfect condition. Thorough installation instructions are included in the box for a straightforward install that can be performed by most DIY enthusiasts.

LIFETIME WARRANTY:  Enjoy your SOUL exhaust components with confidence on both the street and track as they are covered for life! Our team will quickly work with you to resolve any issues or answer any questions that you may have. We cover our HJS catalytic converters with an unprecedented 3 year warranty while the headers themselves are backed by our Lifetime Warranty.

This product is not CARB certified and may not be legal for use on emissions controlled vehicles; intended for off road use only


  1. FlatSickx

    I got the headers installed yesterday at an Indy Porsche shop at Rd Atlanta. I took some heat shielding for the coil packs and they added that. The whole thing took about 4hrs and $425.00. I still have the standard exhaust and I’ve considered a cat-back system, but I don’t want it to be droning away when I’m on the highway. At startup, it is a little louder but not too much. What I did notice is it revs a little more freely at idle than with the stock headers. In that aspect, the sound is definitely noticeable. Out on the road, I think it accelerates a little better and in Sport or Sport + mode, it is a little bit louder. I think in low gears just driving slowly as if in traffic, there is a little more burble or maybe it is just a difference in the tone. You get a little more sound and a little performance improvement which does not come cheap on these engines.

    I took the car out this afternoon for a little ride since it was raining yesterday. At idle, if I rev it up to above 3500, it definitely has a more menacing sound. As I said earlier, it also just revs more freely. I think there is a little more linear power down low than before too. It is not a kick in the pants like lots of torque, but definitely a little more power.

  2. Jeff Hallam

    The headers sound great! Especially in “sport” mode with the PSE open! The KC Region has a DE event at Heartland Park in Topeka KS Sept 7-9. Can’t wait to see the torque improvement on the track. Thanks Again

  3. raidersfan (Rennlist)

    I put Soul catted headers on a few weeks back, and am using the supplied Cobb tune. My car does not have a sport exhaust.

    My take: a nice increase in power and torque above 4500 RPM. The car really, really comes alive; it feels every bit as quick as our 991 C2S now! It is probably making about 370hp and the power to weight should be identical on these 2 cars (C2S is PDK).

    The exhaust note is louder by about 10% when cruising and 25-30% at WOT. It needs more sound still. It sounds a little quieter than the C2S with Fister mufflers, for comparison’s sake.

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