RENNtech Downpipe for M133

Our performance downpipe has been developed specifically for the CLA 45 to maximize exhaust gas flow, minimize back pressure and is a complete bolt-on power solution.

Crafted from T-304 stainless steel and featuring a 3.5" inlet and 3"outlet, our downpipe mates perfectly with the OEM exhaust and requires no ECU modifications due to our specially coated hi flow tri-metal catalytic converter. The 200 cell catalytic is significantly freer flowing than the restrictive OEM catalytic yet efficiently filters exhaust gases to ensure the check engine light remains off. 

Our down pipe is finished in a thermal resistant coating and requires no modifications to the OEM system. 

• +10 HP, +10 TQ
• 200 Cell Sport Cat
• No Check Engine Light!
• No re-programming of ECU needed!