OTL Back Half Surge Tank System Subaru WRX / STI 2008-2014 GR Chassis

Fuel Surge Tanks

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The complete OTL Fuel System includes everything you need to support fuel demands up to 1200whp on E85. Fuel lines are braided stainless with a PTFE core to handle any fuel type and the exterior is protected with a smooth PVC coating. All lines are pressure tested after assembly.

Our fuel system is split into two parts and either kit can be used independently of the other.

The Front Half Line/Rail Kit includes rails, PTFE lines, regulator, gauge, fuel filter w/check valve and adapter fittings to connect directly to the stock hardlines at the firewall. EFI adapters are also included for connecting to the stock hardlines at the firewall for feed and return. If combining with our back half surge tank kit, the front lines connect direct to our -8AN feed and -6AN return lines below the location of the stock hardlines.

The Back Half Surge Tank System includes sending unit hardware, aluminum surge tank, MagnaFuel inline fuel pump, PTFE lines, ABS mounting board and all required fittings. The mounting board sits in the spare tire well and is fastened down using your OEM spare tire retainer. All can be hidden under your factory trunk board and carpet for a clean install that can still haul the groceries. The back half system terminates at the firewall below the stock hardlines and can easily be connected to most upgraded front line/rail kits.

Please contact us with any fitment questions!!

This Surge Tank System for GR Chassis includes:
- MagnaFuel 750 Pro EFI Fuel Pump
- Aluminum Surge Tank – Texture Black Powder Coat
- ABS Fuel System Mounting Board
- PTFE Hose Assy – Sending unit to surge tank, -6AN feed
- PTFE Hose Assy – Sending unit to surge tank, -6AN return
- PTFE Hose Assy – Surge tank to pump, -8AN
- PTFE Hose Assy – Fuel pump to firewall, -8AN feed
- PTFE Hose Assy – Firewall to surge tank, -6AN return
- 2x -6AN to 3/8 SAE EFI Adapter
- 3x -6AN Port Adapter
- 3x -8AN Port Adapter
- 1x -6AN Union
- 1x -8AN/-6AN Union Reducer


Any returns for an exchange or refund will be allowed within 30 days from the receipt of your order and must be authorized prior to shipping with an RMA Number (Return Merchandise Authorization). To receive your return instructions and RMA# please use our online form under Returns and Exchanges! Once you receive your return instructions please ship out the item at your earliest convenience and provide the tracking number to your customer service rep. The customer will be responsible for all shipping fees. Before shipping your product back please make sure you package it up exactly how you received it and in all of its original packaging. All items must be in brand new and resalable condition. Once the item is received it will be inspected and a credit will be issued accordingly. All returns are subject to a 15% restocking fee. Any returns received without an RMA# will be charged a restocking fee and any shipping fees associated with the return. An item that does not ship directly from IIR's warehouse is considered a "special order" item and no returns will be authorized.

OTL Back Half Surge Tank System Subaru WRX / STI 2008-2014 GR Chassis
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