Seller notes

For 2 Barrel and Cross Fire Throttle Body I have tested many springs in search of replacements for all the broken ones I have found. I also was looking for options to make the system more tunable and support more HP than the stock injector settings. This auction is for the: Performance15-20psi spring - This provides ~ 18psi in a stock regulator setting. Pressure is tested in a factory regulator. I can not guarantee the same results when using an aftermarket regulator. I offer 3 different spring ...

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