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How do they ship the long fuel and brake lines?

They ship the line in an oversize box approximately 10″x18″x66″ (the largest allowable by FedEX) with a shipping bend in the center section. This shipping bend is easily removed by placing the line on the floor, holding one end against the floor and pressing your hand slowly along the bend to straighten it out. No need to use tools.

Is stainless steel tubing hard to seal?

The stainless steel nut will require approximately 15 lb./ft. to seal. This is slightly more than the normal steel nut requires. Remember to check the seat where the flare will seal. If the seat is deformed you may need a new block, hose etc.

What is the advantage of stainless steel tubing over steel tubing?

Stainless steel tubing, nuts and gravel guard are impervious to salt and other metal-destroying elements your vehicle is subjected to. Equally important is that it will never change its appearance. It is a permanent replacement that looks great.

Do they need to use anti-seize or teflon tape?

Anti-seize and Teflon tape are not needed when installing your lines. The seat on the end of the tube is what seals against the brass seat in your cylinder or block. Make sure the seat is the correct size and has not been damaged.

Do they have mandrel bent exhaust systems?

No they don’t sell systems, they  only carry straight length tubing, 90°, 45°, 15°, 180° J-bends and 180° U-bends for the customer to fabricate exhaust systems by themselves.