Armytrix Stainless Steel Valvetronic Cat Back Exhaust System Direct Fit Catalytic Converter Delete/Test Pipes A “helper spring” is a

A “helper spring” is a light weight spring who’s job is to keep the main spring captive if a specific setup and ride height combination mean that when the vehicle is jacked up with wheels off the ground

coolant lines

Designed with sound-deadening in mind rather than optimizing power delivery

NL 4/6CYL (Universal urethane shock absorber covers to protect shock body from damage)

Armytrix Stainless Steel Valvetronic Cat Back Exhaust System Direct Fit Catalytic Converter Delete/Test Pipes A “helper spring” is aARMYTRIX is the ultimate exhaust upgrade for the M140i M240i. Stainless steel fabrication delivers incredible weight reduction, at no expenses of losing quality and performance. Top craftsmanship protects the integrity and functionality of the system. The free flowing x Pipe ferries a high capacity of exhaust volume, heightening the overall performance capacity. Expect significant amplification and resonance of the exhaust note across the entire