HP (whp):
+15
TQ (ft/lbs):
TBD
WT (lbs):
TBD
Posted by Jonny D on 24th Mar 2017
For the money, these are the best catted headers for the 991 GT3 chassis on the market. There are so many long-tube options on the market- it was nearly impossible to find a set of well-engineered catted headers for my car.
Being a daily driver, there was no other choice. These headers are amazing. Very well-engineered, and with the right tools I was able to install them in my garage without any issues. Car is certainly a louder, pulls harder, and has no CEL or emissions issues.
Would recommend these to anybody who needs to keep their catalytic converters but wants to get rid of the bulky factory cats/headers!
Direct replacement for the restrictive OEM headers, offering improved power and throttle response throughout the RPM range.
Why We Choose HJS Catalytic Converters:
HJS German imported catalytic converters are made from some of the highest grade material 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.
FEATURES:
INSTALLATION NOTE: To ensure proper header seal, after initial heat cycle, tighten all exhaust bolts to the OEM torque specs.
DISCLAIMER: This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only. This product contains a High-Flow Sport Catalytic Converter solely intended for track and race cars as it is NOT California Air Resources Board Certified and not EPA certified. You are hereby informed and warned to check your local, state, and federals laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts.