CTS Turbo HIGH-FLOW cat set for Mercedes Benz C43 C400 C450 E43 E400 E450 with M276 engine

CTS Turbo HIGH-FLOW cat set for Mercedes Benz C43 AMG, C400, C450 AMG, E43 AMG, E400 and E450 with M276 engine is made to maximize exhaust flow for highest power gains. Designed using the latest in CAD technology; this part is made to fit perfectly in place of restrictive factory part. Manufactured from CAST T304 stainless steel; hand TIG welded and back-purged to ensure years of reliable performance. In addition to unleashing the power and performance of your 3.0 Twin Turbo, our downpipe will make your vehicle sound like it really should. When installed with factory exhaust it produces a louder and deeper growl with much more pronounced exhaust "crackle" on downshift. While up-shifting you will enjoy a confident "punch!" as you bang through all the gears. The sound will be even louder if you already have an aftermarket exhaust system. Product Details:

• Dual 3" high-flow cats with heatshielding
• Cast T304 stainless steel, TIG welded back-purged construction
• 200cpi catalytic converters
• Fits within OEM heat shields
• Great power upgrade with uncompromising performance
• Incredible sporty exhaust sound, subtle when cruising
• No drone with factory exhaust
• Replaces OE numbers: 276-140-94-13  and 276-140-96-13 (check your vehicle to make sure you have the "short" factory part)

    Fitment for M276 engines V6 3.0L Twin-turbo:

2023	Mercedes-Benz	C 43 AMG®	4Matic®	3.0L V6 - Gas
2022	Mercedes-Benz	C 43 AMG®	4Matic®	3.0L V6 - Gas
2021	Mercedes-Benz	C 43 AMG®	4Matic®, Base	3.0L V6 - Gas
2020	Mercedes-Benz	C 43 AMG®	4Matic®, Base	3.0L V6 - Gas
2020	Mercedes-Benz	E 450	4Matic®, Base	3.0L V6 - Gas
2019	Mercedes-Benz	C 43 AMG®	4Matic®, Base	3.0L V6 - Gas
2019	Mercedes-Benz	E 450	4Matic®, Base	3.0L V6 - Gas
2018	Mercedes-Benz	C 43 AMG®	4Matic®, Base	3.0L V6 - Gas
2018	Mercedes-Benz	E 400	4Matic®, Base	3.0L V6 - Gas
2018	Mercedes-Benz	E 43 AMG®	4Matic®	3.0L V6 - Gas
2017	Mercedes-Benz	C 43 AMG®	4Matic®, Base	3.0L V6 - Gas
2017	Mercedes-Benz	E 400	4Matic®, Base	3.0L V6 - Gas
2017	Mercedes-Benz	E 43 AMG®	4Matic®	3.0L V6 - Gas
2016	Mercedes-Benz	C 450 AMG®	4Matic®	3.0L V6 - Gas
2015	Mercedes-Benz	C 400	4Matic®	3.0L V6 - Gas

Fits LHD vehicles only without OPF/GPF. Does not fit SLC43 AMG models. To remove the CEL that will occur, proper stage 2 tuning software must be used.  

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 4 applications

C400

Make	Model	Engine	Years
MERCEDES-BENZ	C400 (W205)		2014–2015

C43

Make	Model	Engine	Years
MERCEDES-BENZ	C43 (W205)		2016–2021

C450

Make	Model	Engine	Years
MERCEDES-BENZ	C450 (W205)		2016–2017

E43

Make	Model	Engine	Years
MERCEDES-BENZ	E43 (W213)		2016–2018

Fitment data last updated: 2026-09-25

✓ Fits 4 vehicle applications Check vehicle fitment before ordering View fitment