shermantank24
Junior Member
What will happen to the back pressure if i gut my stock exhaust and weld in larger outlet pipes versus a slip-on aftermarket exhaust.
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back pressure?
- Thread starter shermantank24
- Start date
4drfocus
Rurouni
- Joined
- Jul 11, 2008
- Messages
- 593
- Reaction score
- 10
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- Location
- Oz, or somtimes Japan
Nothing really, you still have 3 catalytic converters in place, most slip-ons remove the rear cat, and the glasspacks create more noise.
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