ST Suspension Muscle Car Springs for 65-69 Ford Mustang/Mercury Cougar (68502) 8021 OEM airboxes are compromised by

OEM airboxes are compromised by their need to muffle induction sound which is why our Competition Intake is able to improve power by24 whp and 19 ft-lbs

Our S-Type sound level delivers a sound that is much sportier than the barely audible factory exhaust

Eventuri 736 CFM

5 Description_ASM Front S4K FMSI D1896 2019 and up CHEVROLET Blazer 3

Description_ASC DP71657+USR7578 Description_ASM Front S4K FMSI D976 2010 and up LEXUS GX460 4

ST Suspension Muscle Car Springs for 65-69 Ford Mustang/Mercury Cougar (68502) 8021 OEM airboxes are compromised byThis is a set of coil springs designed for achieve handling improvements in cornering, grip, and turn in response. Stiffer yet progressive spring rate provides a civilized ride over uneven pavement. Sport Tech springs are designed for a long life of precision operation, and are built to avoid the disappointments of spring sag and corrosion that plague inferior brands. A multi level tempering process begins with an annealing stage which heats the