im selling a few items for ls1 i have a mass air flow looks like granettelli blue ends 5-15 hp for ($150 obo) also ihave a maf translator tuner to lean or rich your ls1 for off road use connects to maf connections best to set on dyno to read hp gains ($150 obo) and i have an slp air temp module slp claims gains of up to 5 hp($20 obo).all items are working fine and sold as rick 2146741559 dallas tx. area