HKS has taken their time to design a free flowing exhaust that sounds great. Low exhaust resonance is eliminated with sound tuning from the built in resonance pipe.
They aimed to produce an exhaust system to allow owners to enjoy that great boxer sound and succeeded.
Stock System Weight: 46 pounds
HKS Weight: 33 pounds
Tip Diameter: 97mm or 3.8 inches
Piping Diameter: 3 inches to dual 2.5"
Material: 304 stainless steel
Note: Are you using a stock j pipe or downpipe? If yes, the GrimmSpeed Subaru Stock DP to Aftermarket 3 in. Catback Adapter p/n 077046, is required.
The HKS sounded awesome on my 16 STi. It has a nice deep, loud exhaust note, but is not obnoxiously loud.
As always, super quick shipping! Had this within a couple days of ordering!
Excellent exhaust with a deep growl sound to it, and easy install and easy to read instructions. Very quick and speedy delivery with IIR as well. Quality products and fantastic service.