Can they connect to the oem headers?
Call me odd but I don't like how that is one giant piece. Prefer my JBA O/R X100% sure no. It's a shorty X pipe that's designed to work with long tube headers. If you want to change your H pipe to an after market X without installing long tube headers I would suggest going with a JBA or Gibson, they seem to be the best bang for your buck but do so knowing that if you intend to add long tube headers down the road you will need to either modify the pipe you have or purchase a different pipe.
Here's the Gibson I just purchased. You can't beat it for the price and knowing that I will be installing long tubes next summer it didn't make sense to spend the big bucks on a Borla or one of the other big money brands.
Gibson Performance Exhaust 319011 Aluminized Crossover Exhaust X-Pipe : Amazon.com : Automotive
Any dyno results for the power that was applied after installing?Lethal Performance makes an offroad X-Pipe in aluminized steel or stainless steel. Fitment is excellent.
Any dyno sheet to back this up, its 200 moreMagnaflow off-road x. Is the way to go you get what you pay for.
Any leak problems, was it clamped or welded?I don't have the Lethal offroad X-Pipe. I have the lethal offroad H-Pipe. No dyno results as I have no need for them. You can expect about 15 rwhp from either one. But both fit fine. And I would skip the Magnaflow one as it isn't a true X-Pipe.
LmaoStage 3 had told me the kooks fit, they called me today apologizing for the mis communication
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Any dyno results for the power that was applied after installing?
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Any dyno sheet to back this up, its 200 more