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Product images
Product Media
HKS ES Premium Cat Back Exhaust
Subaru WRX / STI Sedan 2011-2014
Product Resources
Features & Product Details
ES means Elegant and Premium, and that is exactly what this new HKS exhaust is. It all starts with mandrel bent 304 stainless steel piping from the catalyst all the way to the mufflers. The piping is a full 3 inches back to where the mufflers split and from there each 2.12" pipe feeds into the beautiful ES mufflers.
The ES mufflers have elegant rolled tips and a silent chamber design to keep the droning sound down. This exhaust system also features the new side branch which helps reduce the raspiness sound that is all too common. The side branch uses the theory behind superposition of sound waves. The sound wave is sent through the side branch and is reflected from the end. This reflected sound meets the main system sound wave but is phase shifted which acts to cancel each other out. The net result is that the overall sound level is reduced whilst the design of the side branch does not affect the exhaust gas flow meaning that no performance is lost.
The ES mufflers have elegant rolled tips and a silent chamber design to keep the droning sound down. This exhaust system also features the new side branch which helps reduce the raspiness sound that is all too common. The side branch uses the theory behind superposition of sound waves. The sound wave is sent through the side branch and is reflected from the end. This reflected sound meets the main system sound wave but is phase shifted which acts to cancel each other out. The net result is that the overall sound level is reduced whilst the design of the side branch does not affect the exhaust gas flow meaning that no performance is lost.
Specifications
Brand:
HKS
Exhaust Orientation:
Straight Exit
Installation Hardware Included:
Yes
Piping Coating:
No
Piping Flex Joint:
No
Piping ID:
60mm - 52mm
Piping Material:
304 Stainless Steel
Piping Taper:
Yes
Silencer Included:
No
Tip Material:
Stainless Steel
Tip Qty:
2
Tip Shape:
Round
Tip Size:
115mm
Mfgr. Warranty:
1 Year
Condition:
New Product
Return Policy:
Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.
RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.
The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
Standard
RallySport Guarantee - 30 Days
Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.
RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.
The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
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