PorscheAddict

I have gone from stock to Fabspeed Maxflo to now Fabspeed race headers with factory PSE. Stock was too quiet for me for sure. Maxflo sounded really good (and is for sale here ) but has some drone and I was afraid to even try it with catless headers. The current setup, catless with PSE, is PERFECT. I have aftermarket control remotes (like Soul's, not sure specifically since I bought used) so I can have it open or closed at the press of the remote. With valves closed, even with catless headers, it is civil and has nearly no drone. It is really not very loud closed, IMO. Open is an animal, with a shriek above 4k that must be experienced. It sounds closer to a GT3 than a stock Cayman now at high RPM, really just an excellent sound and tone. I did not see any reviews of stock PSE with catless headers and felt compelled to share. Hope others can use this data point down the road if they are considering exhaust options.

Soul Performance

Thanks for sharing! Upgrading the factory headers before swapping the PSE is a great option. This way you get to increase power and sound while the PSE can still effectively keep drone to a minimal level. With catless headers you'll still have to worry about a check engine light but catted o2 spacers give you around a 50% chance of preventing that yellow light while a tune can eliminate it for sure.

-Mike S

PorscheAddict

Thanks to you guys for passing along your valve controller install directions! I have a Cobb ECU and PDK tune so no CEL here. I would have bought Soul headers if new, but found a great buy used on these I couldn't pass up. The catless headers really accentuate how big of an impact the valves have.

blacksheepSpyder

Thats my setup on the spyder, cobb, fabspeed race headers, factory exhaust. I love it.

Dicknose

PorscheAddict

Agree on the "wall of sound!" That is one benefit of running a non-OEM switch setup like Soul's. The valves are controlled by the remote, period, regardless of RPM. I haven't had to run it hard with the valves closed yet, but it will allow it.

Hyper911

olegd

What brand of headers are these?

JCviggen

I have Fabspeed race headers with PSE and I agree - it's the best of both worlds. The icing on the (sound)cake for me was adding DREAM 2 crossover exhaust tips. They made a subtle change to the sound that made it a little more "serious" motorsport sounding and took a tiny bit of sharpness away from the exhaust note. It's still deafening in a tunnel with open windows though, literally.

Would be interested in wiring up a remote, the valves opening at 4K at large throttle openings is annoying me. OFF should be OFF, Porsche. If I want more sound I'll press the button.

NelsonF

Planning to do the same with my 981 Spyder if I don't go for the new version. Would love to hear a sound clip if you have.

Hyper911

Joe@Fabspeed

This is Joe at Fabspeed Motorsport USA.
Porsche sound levels DB levels and overall sportscar sound all depend on how much exhaust restrictions are removed from the factory Porsche exhaust system. So on all these 987/987.2 and 981 cars the factory installed up to 6 catalytic converters on the 987/987.2 cars and 4 catalytic converters on the 981/GT4 cars. So essentially any Porsche will have its sportscar sound level defined by its ultimate components.

Fabspeed Motorsport has been designing, engineering and dyno developing Porsche headers and exhaust systems for over 25 years. Here is a little of what I have discovered over a 25 year history of actively supporting Professional racers Koni Continental IMSA, Cayman Inter-series ITC and PCA racers and DE drivers. A Porsche owner should always look for a proven track record............ versus a new quick price from a new "bucket-shop" with no track record.

HJS German imported genuine Catalytic converters flow 93% to 95% of a straight pipe. Fabspeed uses the largest HJS German catalytic converters that can fit on these cars to maximize horsepower/torque and give great sports car sound. You can not get a CEL Light with the the Fabspeed set-up. The HJS German 200 cell catalytic cores attenuate the loudness as the exhaust has to pass through a foil matrix. When you do not use a catalytic converter then the sound level is increased accordingly

For Porsche owners and Gung-HO Porsche customers that want even more sports car sound and potential power we engineered competition racing headers for these watercooled cars starting over 20 years ago with the 1997 986 Boxster S that I actually bought for development. Over the last 20 years Fabspeed Motorsport has continually refined and engineered headers with HJS tri-metallic cores and w/o catalytic converters for these cars. Everything has been street and race track tested for decades on 100s and 100s of cars worldwide.

Check it all out on our website and PM me for more information and to get the very very best. Systems on the shelf with and w/o catalytic converters.

Fabspeed Motorsportb USA is HJS Germany's exclusive North & South American distribuitor stock-ist. Beware off counterfit fake HJS catalytic converters.

John@Fabspeed

Thanks for the kudos guys! Our Race Headers w/PSE is an AWESOME set-up, personally one of my favorites

Feel free to give me a shout if you ever need anything.

kiznarsh

That sounds like a jolly good show. I know they don't do the sniff test anymore in California for new cars, but I wonder how easily the catless headers would pass the visual inspection...

Actually the sound would just give it away.

John@Fabspeed

My understanding is California visual inspection is 50/50 however, your best bet it usually to go through a more performance-friendly shop. Installation is a breeze (usually 2 hours) - if you want to aide on the safe side, I have quite a few customers that will swap out the OEM manifolds every two years when it comes time for inspection. A small price to pay for awesome power and sound