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Hypertune HypEX 347-SS Stock Frame Mitsubishi Evolution 4-9 4G63 Exhaust Manifold

Turbo Manifold
All HypEX turbo manifolds feature one-piece 347 stainless-steel precision investment cast merge collectors with smooth waste...

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All HypEX turbo manifolds feature one-piece 347 stainless-steel precision investment cast merge collectors with smooth waste gate port transitions for the ultimate in reliability and boost control.

HypEX SS-347 exhaust manifolds are investment cast from 347 stainless-steel due to its vastly superior performance in high-temperature applications compared to commonly used materials. All components, including pipe elbows, are unique to Hypertune and are designed specifically for extreme-duty exhaust applications. **We do not use off-the-shelf steampipe elbows**. This allows us to offer a high-performance manifold that is light weight and extremely durable.

  • - 347 stainless-steel construction
  • - Tig welded in-house
  • - Hypertune proprietary runner diameter and wall thickness: 44.45mm o.d., 2.7mm wall
  • - Investment cast collector – high resistance to cracking and high flow
  • - Investment cast head flange – incorporating smooth port transition
  • - Lifetime warranty against cracking
  • - Ceramic coating is Available
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Shipping policy

Thank you for visiting and shopping at Affinis Motor Sports LLC. Following are the terms and conditions that constitute our Shipping Policy.

Domestic Shipping Policy & Shipment processing time

All orders are processed within 2-3 business days. Orders are not shipped or delivered on weekends or holidays.

If we are experiencing a high volume of orders, shipments may be delayed by a few days. Please allow additional days in transit for delivery. If there will be a significant delay in shipment of your order, we will contact you via email or telephone.

Shipping rates & delivery estimates

Shipping charges for your order will be calculated and displayed at checkout. If no shipping charge is shown upon checkout, we will contact you and invoice shipping separately. We cannot calculate ever changing rates for some items coming in from Japan, Australia, or other countries when special ordered.

Special order items can take anywhere from 1 week to several months depending on vendor lead time. Please check with us before placing an order.

Special order products

Any item that requires options to be selected such as Hypertune intakes requiring anodizing, runner and injector configurations and combinations, is considered a special order / made to order / drop shipped product. These special order products cannot be cancelled once shipped. Exchanges will be given for defective products. If the merchant is unable to send a replacement item, refund will be given once the item is returned to us.

Please inquire on which items are special ordered, made to order before placing your order if you are unsure.

If the vendor is unable to fulfill and order in a timely manner then we may choose to cancel the order and have the merchant refund us.

International Shipping Policy

We currently do not ship outside the U.S.

Returns Policy

We accept returns on unused products within 30 days of delivery. Excludes custom order products and specialty order items.

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