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Re-using factory tips will result in diminished HP gain
These headers will give you a significant volume increase and give your 997
Used by professional Grand Am race teams in series that require the use of the factory airbox
Most European vehicles have additional monitored ports on the factory pipes
+ Allows manual control over valves in side mufflers
Kline Innovation Audi RS7 cat-back valvetronic system Mercedes-AMG-G63-W464-2019 Re-using factory tips will resultKline Innovation Replacement of the stock 600cpsi catalysts, with either high flow HJS cores, or de cat pipes, opens up the sound significantly, as well as drastically improving turbo spool for increased power, and reduced spool time. This coupled with the twin 70mm dual oversized pipe, allows the engine to reach its full potential. The addition of a 20 degree x pipe to the center section, raises the pitch of the exhaust, As with all v8 engines, with
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US$ 21.02
