Features:

  • Large internal flow tubes improve exhaust flow and reduce backpressure
  • Exclusive patented flow director design channels exhaust flow and eliminates turbulence
  • Fiberglass matting technology to absorb unwanted interior resonance while maintaining a mellow performance tone
  • Dyno proven to flow up to 700 SCFM
  • The "Pure Unadulterated POWER" of DynoMax Super Turbo mufflers are backed by a Limited Lifetime Warranty and exclusive 90-Day Performance & Sound Guarantee.
amazing product couldn't be happier

Put this on my 04 and it definitely made my car sound amazing especially with the headers I put on my car it has a nice deep rumble get looks and complements all the time when someone hears it there shocked to hear a grand prix like mine easiest install ever took less than an hour

Perfect for 04-08 grand prix

4 years later & it still looks & sounds as good as new. Better sound & look than stock

perfect

love the exhaust, tips needed to be welded on, no biggie, otherwise perfect fit and it sounds great, looks good too

Dynomax quality and value

I put this on my '04 Grand Prix GTP. Before the only modification to the exhaust was a factory resonator delete pipe. This kit came with a Dynomax resonator, intermediate pipe, y-pipe, two Dynomax mufflers, and 3.5" stainless slash tips. I was pleasantly surprised with the ease of installation and the overall quality. This is the best value out there if you want to get a cat-back on your Grand Prix. All other brands are almost double the price, if not higher.

Great Deal !!!!

Best priced system anywhere! Exactly as advertised. Fits my 2002 Grand Prix well but about 1/2 inch long for the muffler OEM hangers. Not a big deal with an adjustable hanger. Would be nice if the package came with new hangers. Sounds great with a deep but lite rumble. My stock V6 sounds better. Exhaust tips looked big but when on fit the car nicely. Hope they last a long time...we'll see!

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