HJS German imported catalytic converters are made from some of the highest grade materials you can find in a catalytic converter. This yields high performance gains and longevity so it wont deteriorate over time like lower grade catalytic converters. These catalytic converters flow up to 93-95% of a straight pipe in most applications. The benefit is that you get the "straight pipe sound" while still being able to provide enough emissions scrubbing to prevent a check engine light.Â
Designed to be the perfect complement to either the factory exhaust system or Fabspeed’s Maxflo or Supercup Exhaust systems, these high-flow headers include HJS catalytic converters, making them the best upgrade for street driving and emissions compliance.
Improve both the sound and the power from your 981 Boxster/Cayman with these sport headers. Our Sport Headers use 200 cell HJS catalytic converters which improve exhaust flow while still cleaning your exhaust gases.
SOUND:
These headers will give you a significant increase in volume, and a smooth sports car sound.
POWER:
These dyno designed headers feature smooth mandrel bends and a 3-1 collector to get the most power out of your 981. Paired with a Maxflo Exhaust at 6600 RPM there we saw an increase of 13 whp and 10 ft/lbs of tq and these gains are carried throughout the rev range for great under the curve power.
For Instructions on how to install your product please see the PDF below:
⚠️ California Proposition 65 Warning:
This product may expose you to chemicals known to the State of California
to cause cancer or reproductive harm.
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