NHP Porsche 991 S / 991 C4S Center X-Pipe with Sound Valves "Muffler Delete"
OUT OF STOCK ETA END OF SEPTEMBER 2018
Product Fitment : 991 S / 991 C4S 3.8L with Factory PSE Exhaust
NHP 991 3.8L NHP Center Muffler Delete X-Pipe , direct replacement with no modifications necessary . This can be installed on 991 3.8L Models that are equipped with the PSE Exhaust simple bolt on, hook up your existing Vaccuum lines and you're set to go.
Please read our extended version below.
Once again as long as you have a 991 S or 991 C4S 3.8L with the factory PSE Exhaust you can install this exhaust, this exhaust will work just the same as the factory one, you could use your exhaust button to activate it or when you push the sports button it will activate as well. You could re-use your factory tips or purchase the optional NHP Exhaust Tips, with the sport exhaust button you don't need to install our solenoid and vacuum line kit.
The 991 with PSE Sport Exhaust sounds good from factory however its still missing a little more of that sports sound, if you want your exhaust to sound even better with more POPS this is your ticket. The NHP 991 Center X-Pipe sounds amazing. It's almost impossible for a Sports Car type of guy to dislike the sound our pipe produces. With the valves closed it delivers a nice sound taht's expected from a sports car of that caliber and will make your long drives or drives with the wife acceptable, it sounds way better then stock even with the valves closed. When you open the valves its a whole different ball game you get an agressive sounding exhaust with lots of poping sounds like a true race car.
The exhaust flow from the headers enter a 2.75" pipe that leads to resonators and converts to a 2.5" pipe at the X-Pipe , the X-Pipe is a true X-pipe , the left pipe and right pipe join together and the X is created with openings between both pipes . We use High Quality SS-304 thick 14 gauge Stainless Steel to eliminate possibilities of cabin drone. This pipe should easily increase HP to 10HP+ .
The NHP 991 Exhaust X-Pipe with valves is the way to go, get yours today.