JDL Over Pipe and Front Pipe

[J1Avs]

Hey Folks — I am looking to pick up a JDL UEL Catted Header, Over Pipe, and Ultra Quiet Front Pipe to pair with my 2.5 Resonated Perrin Catback, but I’ve come across a few questions I haven’t been able to find an answer to yet. I am also going to get all of these 2.5”, not 3.0”

1) Would you recommend buying the JDL OP and JDL Ultra Quiet FP as separate pieces OR the OP/FP Combo Pipe (this appears to have some of the regular OP as part of the FP, and V-Band connection).

2) JDL asks for the Rear Flange if you want (a) OEM Donut Style Gasket or (b) Flat Flanged. Any know which is better with the options I mentioned above?

Any insight would be greatly appreciated. Thanks all!

Links for reference:

Combo FP/OP: https://jdlautodesign.net/shop/ft86-...e/#prettyPhoto

Ultra Quiet FP: https://jdlautodesign.net/shop/ft86-...et-front-pipe/

OP: https://jdlautodesign.net/shop/ft86-overpipe/

[cjd]

IMO get the over-frontpipe combo unless you randomly think you may want to switch to the Ace header along the way (which replaces the header + overpipe). Either would be a good setup though.

With the Perrin, I believe you want the flat flange, as the Perrin already does away with the donut style gasket.

[Detroiter]

Definitely go with the OP/FP Combo. The V-Band connection is far superior to a 2 bolt flange connection. You can get it with the same cat and resonator as the super quiet FP.

As for the Donut gasket vs Flat Flange I would go with Flat Flange as the Perrin 2.5inch Catback uses a none donut type connection to the front pipe.

(EDIT) Looks like cjd beat me to it.

[J1Avs]

Originally Posted by Detroiter

Definitely go with the OP/FP Combo. The V-Band connection is far superior to a 2 bolt flange connection. You can get it with the same cat and resonator as the super quiet FP.

As for the Donut gasket vs Flat Flange I would go with Flat Flange as the Perrin 2.5inch Catback uses a none donut type connection to the front pipe.

(EDIT) Looks like cjd beat me to it.

Originally Posted by cjd

IMO get the over-frontpipe combo unless you randomly think you may want to switch to the Ace header along the way (which replaces the header + overpipe). Either would be a good setup though.

With the Perrin, I believe you want the flat flange, as the Perrin already does away with the donut style gasket.

Thanks to both of you! Seems like its a bit cheaper to go for the combo pipe too.

[NRXRaptor]

Originally Posted by J1Avs

Thanks to both of you! Seems like its a bit cheaper to go for the combo pipe too.

Its probably harder to install by yourself though which is why I avoided it. If you are paying someone then it doesn't matter

[cjd]

Originally Posted by NRXRaptor

Its probably harder to install by yourself though which is why I avoided it. If you are paying someone then it doesn't matter

Hardest part is getting the stock overpipe out.

[J1Avs]

Originally Posted by NRXRaptor

Its probably harder to install by yourself though which is why I avoided it. If you are paying someone then it doesn't matter

Originally Posted by cjd

Hardest part is getting the stock overpipe out.

Planning on having it professionally installed along with the header at Mach V. Thinking about just acquiring the parts throughout the summer, and then doing a full install alongside the Sprintex 210 early next spring.

[James Russels]

Sorry to revive a 10 month-old thread, but I have a similar layout to OP in mind, so I thought my question might fit here. I am planning on getting the JDL turbo kit with recirculated wastegate, and want to ensure I have plenty of exhaust diameter to support it. My plan was to get a 3" overpipe and frontpipe, then a 2.5" catback, assuming that wouldn't be a bottleneck for my 300whp goal.

I was looking at getting the JDL OP/FP combo, but the site says the 3" option won't fit with an automatic transmission.

My questions are:

-Am I out of luck for a 3" OP/FP with AT? It seems there are very limited 3" options - the only other one I could find was the nameless overpipe and frontpipe combo, but that also supposedly won't work with AT.

-Is 3" even necessary for this setup? Based on what I've found online, it looks like a 2.75"-3.00" diameter is recommended for that power goal, and I figured it'd be better to go larger due to the recirculated wastegate and catted FP.

Any help is appreciated. Thanks in advance.

[GPhilly]

Originally Posted by Detroiter

Definitely go with the OP/FP Combo. The V-Band connection is far superior to a 2 bolt flange connection. You can get it with the same cat and resonator as the super quiet FP.

As for the Donut gasket vs Flat Flange I would go with Flat Flange as the Perrin 2.5inch Catback uses a none donut type connection to the front pipe.

(EDIT) Looks like cjd beat me to it.

@cjd @Detrioter

What do I do if I accidently ordered the donut flange? They seemed to have welded a piece of pipe for the donut. I need it flat now...