Test pipes need tune?

[night0]

Hey guys i plan to get some MS test pipes . Will i need a tune to run them?

[Ervin87]

No. A tune is recommended but not needed. You will need to code out the CEL if it bothers you.

[aussiem3]

If not mistaken, you need a tune/code to turn CEL off as well as maximise the gains from cat delete. If not what's the point of deleting the cats. A tune will complement the process.

[Sandye90m3]

Originally Posted by aussiem3

If not mistaken, you need a tune/code to turn CEL off as well as maximise the gains from cat delete. If not what's the point of deleting the cats. A tune will complement the process.

For sound and half the gains.

[Azurite M5]

Originally Posted by Sandye90m3

For sound and half the gains.

Does the tune give you half the gain and deleting primary cats (test pipes) give the the other 50% gain?

[Sandye90m3]

Originally Posted by Jerez M3

Does the tune give you half the gain and deleting primary cats (test pipes) give the the other 50% gain?

Yes, more detailed thread right here. I currently, just have test pipes without a tune. But after a while you understand why you need one. Right now there is a slight dip in the power band at around 4K revs. Maybe not so much of a dip, but more of a big increase in power once it hits 4k.

http://www.m3post.com/forums/showthread.php?t=957346

[BPMSport]

Originally Posted by Jerez M3

Does the tune give you half the gain and deleting primary cats (test pipes) give the the other 50% gain?

Adding the tune brings it together, as it doesn't run as smoothly with the stock tune with the primaries deleted. You'll pick up a bit of power/torque, smoothness, and a few features definitely worthwhile without the primaries in place.

Have a look http://www.bpmsport.com/reviews.pdf under the modified cars section

[pbonsalb]

Cat delete will add power with no other changes, as will higher octane gas (to a point). Stock ECU is very capable and with full time WB02 and knock sensing through each plug, can take pretty good advantage of mods. Testpipes are the greatest bang for the buck. I think you will gain more power from either test pipes or higher octane than from a tune. The tunes show pretty small gains, but as noted above, do "bring it together."

[325rider]

Originally Posted by pbonsalb

Cat delete will add power with no other changes, as will higher octane gas (to a point). Stock ECU is very capable and with full time WB02 and knock sensing through each plug, can take pretty good advantage of mods. Testpipes are the greatest bang for the buck. I think you will gain more power from either test pipes or higher octane than from a tune. The tunes show pretty small gains, but as noted above, do "bring it together."

100% agree from experience with pipes and tune separate. Power comes from the pipes. However, my tune (BPM Sport) makes it run like OEM again.

Pretty much worth it on that point alone, plus some dyno measured gains on paper.

[night0]

thanks for the input guys. how much does a tune run on average to remove the cel?

[tom @ eas]

Originally Posted by night0

thanks for the input guys. how much does a tune run on average to remove the cel?

We have a combo special with the ESS Tune and MS test pipes which most are running, I'll get you over a PM shortly.

[Killerfish2012]

Originally Posted by night0

Hey guys i plan to get some MS test pipes . Will i need a tune to run them?

I plan to run mine without a tune. Will do the install soon. I will run rear O2 spacers, so the cell comes on only after 4K miles. Once it comes on I'll read it and delete it. Should also pass emissions testing.

[pbonsalb]

Originally Posted by night0

thanks for the input guys. how much does a tune run on average to remove the cel?

Not sure just that is an option. Not enough money in it for the tuners. Might as well buy a full tune and get its benefits plus other coding options like software update, cold start delete, maybe raised rpm limiter, maybe speed limiter delete.

[mkPOTO]

there is a guy in Chicago who is running test pipes and akra-delete and has no codes. Plenty of package deals from Evolve to ESS. I would go with a tune as the car is a different machine with it

[Richsocal12]

it is better to take off primary cats and secondary cats?