A Downpipe is the pipe on a turbocharged vehicle that connects the turbine exhaust housing to the catalytic converter. In most cases factory downpipes are narrow in diameter and restrict the exhaust flow which prevents your car from breathing freely which in turn decreases its potential performance. This situation becomes especially problematic when you upgrade your turbo, and when the exhaust flow increases dramatically highly increasing the back pressure. To avoid that you need to upgrade your exhaust system and its components to more free-flowing performance oriented parts, and a downpipe is one of those very parts. A downpipe upgrade alone can yield an additional 8-20whp depending on your a tune and application.
Stock turbo or not...the bottom line is that if you want more power you need a downpipe, and when it comes to downpipes, HKS should be on high up your list of brands to consider.
HKS offers a variety of downpipes for racing use. All HKS downpipes are mandrel bent and have a bolt-on design, meaning that it will mount right up to your turbo outlet. Certain HKS Downpipes are made from coated stainless steel or polished SUS304 stainless steel piping. Also please not that all HKS down pipes are FOR OFF ROAD USE ONLY, and are not meant to be used on public roads.
Inspection
Buyer shall inspect and reconcile all inbound shipments from HKSportperformance.com within three (3) Calendar days. Claims for shortages or damaged merchandise must be submitted to HKSportperformance.com no more than seven (7) Calendar days following Buyer's receipt of shipment.
Returns and Exchanges of Merchandise
A Returned Merchandise Authorization ("RMA") form must be filled out by the Buyer and Approved by HKSportperformance.com. Without an RMA issued and approved by HKSportperformance.com, Return shipments will be refused and sent back to sender at their expense.
Defective and freight damaged merchandise (only where HKSportperformance.com is providing shipment) may be returned to HKSportperformance.com for store credit, but only upon verification by HKSportperformance.com of such defect or damage. Credit will be issued to Buyer upon receipt of the RMA form and the claim approval from the freight company involved, No exceptions.
Returns of good merchandise may be accepted by HKSportperformance.com in its sole discretion under the following conditions:
Return/Exchange of merchandise in 100% Perfect and re-saleable condition, without markings on the original packaging will be restricted to extraordinary circumstances with prior approval from HKSportperformance.com. Accepted return will be assessed a 25% restocking charge. Returned parts shall not exceed 15% of total annual purchase quantities.
Return/Exchange of merchandise in packaging that has been marked, relabeled or otherwise defaced will be restricted to extraordinary circumstances with prior approval from HKSportperformance.com. Accepted returns will be assessed a 40% restocking charge. Returned parts shall not exceed 15% of total annual purchase quantities.
Merchandise classified by HKSportperformance.com as TB (To Be Discontinued), or DC (Discontinued), may not be returned for credit and are sold as is.
Merchandise on sales promotion or special order packages may not be returned for credit.
All return transportation charges are the responsibility of the buyer and will not be refunded for any reason.
Returns/Exchanges will not be accepted under any circumstances after 15 calendar days after the ship date indicated by HKSportperformance.com.
Any returns for product quality issues will require high resolution digital pictures of the products to be emailed to the account manager before an RMA is approved.
Order cancellations will take up to 72 hours after a cancellation is requested before the order is officially cancelled and money processed for return.