GROUP BUY - Megan Racing 4-1 Header...

[ProMotionTuning]

Your stock catalyic in the exhaust pipe COULD get blown out but not exhaust pipe... Your exhaust will be a lil more raspy with the MR Header since it removes the PreCat

[Black Yaris]

Originally Posted by ProMotionTuning

Your stock catalyic in the exhaust pipe COULD get blown out but not exhaust pipe... Your exhaust will be a lil more raspy with the MR Header since it removes the PreCat

wehave a pre-cat on our stock manifold?

[punch]

Originally Posted by ProMotionTuning

Your stock catalyic in the exhaust pipe COULD get blown out but not exhaust pipe... Your exhaust will be a lil more raspy with the MR Header since it removes the PreCat

Um, you sure about this (precat) i don't see one on the picture posted above, and removing this precat sounds like a check engine code to me??

[Ran Kizama]

Originally Posted by punch

Um, you sure about this (precat) i don't see one on the picture posted above, and removing this precat sounds like a check engine code to me??

That was one of my chief concerns as well. I'd hate to blow an O2 sensor or throw the engine a code. We'll just have to wait and see.

Also, for the catalytic convertor concern, I expressed this concern as well and I may have my taken by Random Technology to put on a high-flow cat. We'll see.

[ProMotionTuning]

Originally Posted by punch

Um, you sure about this (precat) i don't see one on the picture posted above, and removing this precat sounds like a check engine code to me??

Just relooked... may be a small collector but not a precat