Modern Horsepower - Order aftermarket domestic and euro performance tuning and auto parts online.

Modern Horsepower LLC (MHP) was conceived by both consumers and those with years of experience in the modern automotive performance aftermarket to give its customers not only the part or package they want, and the knowledge and understanding that goes with it, but to do so at a fair price and with outstanding customer service.  We sell only the highest quality aftermarket performance parts and tuning packages, those that have been tested and have proven to work every time.  Let our knowledgeable staff help you meet your goals by custom tailoring a performance package that specifically fits your needs; anything from simple bolt-ons and heads/cam/converter packages, to complete strokers and rebuilt stock motors, forced induction and/or nitrous applications and beyond. Our goal is to provide our customers with the most reliable power, lowest ETs, fastest trap speeds, and lowest lap times possible using proven parts and outstanding customer service.  .

MHP EXCLUSIVE MERCEDES BENZ C63 AMG PERFORMANCE EXHAUST is finally ready to release our C63 longtube headers with either catted or off-road mid pipes for sale.

Our kits come with 1 7/8" longtube headers with 3" high velocity merge collectors, 02 extensions, clamps, and 3" mids with or without metallic substrate cats. Everything you need to install them on the spot is included. Our systems require no cutting or welding of the OEM exhaust to install, they mate to the factory catback at the OEM mounting point. All components are 304/316 stainless and are 316 TIG welded with a lifetime warranty on all parts and workmanship.

Once the factory manifolds are removed installing our Longtubes can be done in under 5 minutes. If paying to have someone install them for you, there should be no more than 1hr of labor charged.

Click Here for complete details on our C63 AMG performance exhaust

MHP Delivers Performance Tuning! Modern Horsepower currently holds multiple World records for performance tuned enhanced cars. Our 2009 Mercedes Benz C63 AMG ran 11.595@119.75 with our MHP v2 ECU/ TCU tuning package. Click Here to find out more about MHP's ECU / TCU  Euro Tuning package that is now available for your Mercedes Benz C63 AMG. (Other AMG models are also now available.)

Modern Horsepower's CDT (Complete Driveline Tuning) and highly potent in-house software allow us 100% access to not only the ECU / PCM but the TCU / TCM as well.  We are the only tuner in the world that tunes automatic, SMG / DCT, and MCT transmissions as well as the MB 7G. 

Modern Horsepower carries literally any performance part on the market for your SRT 4, SRT 8, Corvette, Mustang, Cobra, Porsche, BMW M, AUDI, Mercedes Benz AMG, and much more. A small sampling of our vendors for these vehicles includes:  Griggs Racing, Ground Control, Koni, Stainless Works, Diablo (including CMR Tuning), Whipple, ATI, Vortech, and Paxton Superchargers, FRPP, HHP, Bwoody Performance, Brembo, Manley, Eagle, Crower, Comp Cams, ARP, AEM, Greddy, Injen, Turbonetics (turbos and complete kits), JLT cold air intakes, GM performance parts , Zex Nitrous Oxide, Nitrous Express, K&N Air filters, CP pistons, etc. 

If you don’t see what you’re looking for, or if we don’t stock it, we’ll find it for you.  MHP also has a price match policy on most items, please contact us with specific inquiries at: Sales@ModernHorsepower.com