Adjustable High Flow Fuel Pressure Regulator with 1 to 1 boost reference
Adjustable High Flow Fuel Pressure Regulator with 1 to 1 boost reference
2.5" stainless steel mufflers for use with stock tips
Designed to handle continuous temperatures up to 1,800°F
Includes cleaner and re-oil additive
Keep engine temperatures down with an additional radiator - does not include coolant
10X Entries For Our 25th Anniversary Sweepstakes!
Lose 35 pounds and gain up to 23 whp in under an hour
Loud and Aggressive Sound!
Increase power by containing exhaust heat - Lava
Bolt-on upgrade for 25 HP and 22 ft/lbs of torque!
Only for vehicles equipped with electronic throttle (option code M620)
Keep engine temperatures down with an additional radiator - Includes coolant
10X Entries For Our 25th Anniversary Sweepstakes!
This product was last offered at the strikethrough price on
04-08-2026
Includes Cone Filter, Heat Shield and all necessary hardware.
CARB certified for sale in all 50 states
Smaller, lighter crank pulley for faster revs and increased throttle response
Replacement JB4 OBDII cable suitable for use in all applications where the JB4 attaches to the OBDII port under the dash.
Version 1.
Bolt-on upgrade for 28 HP and 26 ft/lbs of torque!
Not for vehicles equipped with electronic throttle (option code M620)
Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button
Fits T3, T3/T4, T25, T28, GT25, GT28, GT30, GT32, GT35, GT37 Turbo Back Housings