3" Inch GN1 Dual Stainless Steel Cat Back Exhaust System

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This is a GN1Performance 3" Cat Back Dual Exhaust System for a 1986 or 1987 Buick Grand National, T Type, or Turbo T& 3.8 liter turbo V6. This 3 inch exhaust kit comes complete with custom mufflers, mild steel U-Bolt clamps, and hangers which is everything you need to bolt this kit on your car today! This kit is a direct "bolt in" no welding or cutting is needed! The system is constructed out of 304 stainless steel and features a high polish finish.

This new and improved exhaust system which features relocated bolt on tailpipe hangers that mount to the existing frame holes. The factory slip in style is not used anymore, this kit is easier than ever to install. This is the baddest Exhaust system on the market for your Grand National and the price is unbeatable!

2 Reviews

  • 5
    3" Stainless Exhaust

    Posted by Ken on 24th Oct 2022

    Nice System, Great finish and it fit well with only slight modifications. Sounds nice and really woke the Turbo V6 up!

  • 5
    3 inch polished stainless exhaust

    Posted by James white on 5th Oct 2021

    This is a beautiful exhaust that fit perfectly. I bought the band clamps and 3” test pipe with the exhaust. I purchased on Monday it arrived on Friday I live in Florida. I have owned my GN for 29 years and would recommend this product and GN1 Performance to anyone.