HPS Red Reinforced Silicone Radiator Hose Kit Coolant for Lexus 07-11 GS350 V6 3.5L (57-1272-RED) 1596 so heat management wasn't a

so heat management wasn't a big concern

For STI owners that are currently using a GrimmSpeed TMIC

The performance matches the famous BORLA systems of the past but with a unique muffler and exhaust configuration canceling additional high frequency sound waves

MBRP Exhaust Quiet Tone Muffler

this bad boy

HPS Red Reinforced Silicone Radiator Hose Kit Coolant for Lexus 07-11 GS350 V6 3.5L (57-1272-RED) 1596 so heat management wasn't aLexus 07 11 GS350 V6 3. 5L HPS High Temp 3 ply Reinforced Silicone Radiator Hose Kit Red is designed to replace stock OEM rubber hoses which can eventually weaken over time, leading to premature failure. With premium quality silicone and race inspired design, this HPS silicon radiator hose kit can withstand the harsh high temperature and high pressure operating conditions of the engine yet still maintaining peak efficiency during competition or daily