When I bought my Cobra it had a BBK off-road H-pipe. I had the dealer agree to replace the off-road with a factory H-pipe to keep the car legal. I drove the car for a couple of weeks with the off-road before the factory pipe was installed, so it was good grounds for comparison. After the factory pipes were installed, I must admit I noticed a big difference in throttle response and a small difference in power. Not to mention it was much quieter and the stink was gone. I miss the quicker throttle response and sound it once had and hope to regain most of it back when I install by catback system. I still have the H-pipe, so I may decide to bolt it back on one day.....
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'97 Cobra, K&N, Rio Red
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