The Pypes X-pipe is a 2.5 in mandrel-bent 409 stainless crossover for 1978-1988 GM G-Body vehicles. It uses angled rear legs to clear angled mufflers and installs without welding. The X-pipe design balances flow between both banks for a smoother tone. This is a crossover pipe section and does not add or delete catalytic converters. Sold each.
- Type: X-Pipe (crossover)
- Diameter: 2.5 in
- Material: 409 stainless steel
- Finish: Natural
- Construction: Mandrel-bent, angled rear legs, no welding required
- Sold as: Each
- Part number: XGG10
Vehicle Applications
- 1978 GM G-Body
- 1979 GM G-Body
- 1980 GM G-Body
- 1981 GM G-Body
- 1982 GM G-Body
- 1983 GM G-Body
- 1984 GM G-Body
- 1985 GM G-Body
- 1986 GM G-Body
- 1987 GM G-Body
- 1988 GM G-Body
Pypes lists this crossover for a range of G-Body nameplates. Confirm your specific model and muffler layout before ordering.
FAQ
What vehicles does the XGG10 X-pipe fit?
It is built for 1978-1988 GM G-Body vehicles. Confirm your specific nameplate and muffler configuration before ordering.
Does the XGG10 require welding to install?
No. It is a mandrel-bent bolt-in crossover with angled rear legs designed to clear angled mufflers.
Does the XGG10 include or delete catalytic converters?
Neither. It is a crossover X-pipe section only. It does not include catalytic converters and it is not a cat-delete pipe.
What diameter and material is the XGG10?
It is 2.5 in mandrel-bent 409 stainless steel, sold each.

