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Oh yes sorry about your question! Think your downpipe is 3 inches like the 5.0's so if you look at the link I had put up you can use the same one too! Only 400CEL HFC for the 2.5 inch is this one: https://www.ebay.ca/itm/281224553744?hash=item417a4a2510:g:15kAAOSwd69gjb9W

Do you recall the percentage of your noise reduction before and after the HFC install? All I can tell you is these MAK race pipes you can wake up the dead with no cats and wished it was 40% less noise and f*ck I'd be happy but that's not the case, plus smelling those fumes was horrible! The...

Original setup before adding the MAK race pipes was the Borla S-Type with SR X pipe. Tone is awesome but too loud for my taste and would like to know if anyone has any experience with adding some HFC's to their setup and really need to know the noise reduction aspects after doing this? I read in...

Better late than never! I was running the MAK CAT delete race pipes before these high performance pipes came out with my Borla S-Type with X pipe setup and it was freaking LOUD, if it was 50% quieter it would be super awesome because you don't lose your exhaust note of the Borla S-Type, it was...

Sorry to have reawaken this thread and hope to get some help! I also have the MAK race pipes but with the Borla S-Type & X pipe setup. YES, to me it was too loud for my taste so went back to original Borla S-Type & X pipe setup and had the MAK race pipes removed! What I was thinking of doing was...

Hope you don't mind me reopening this topic as you seem very versed in this CPSI topic! Got a 2016 S550 GT, just bought MAK CAT delete race pipes but didn't like the smell and it was too loud for my taste when adding it to my current Borla S-Type with X pipe setup. "If" I choose to take the...

You should really consider in getting some PPF work done in the front and the sides to protect your paint!

Had to remove my tints because being that I sometimes cross over to Quebec to do work those pigs over there will hit you up with warning fines of $186CAD like I got just for coming back home, Aholes! They will perch themselves at the bridges and look for tinted cars with Ontario plates!

You know about the saying goes "When they go black, they never go back!"...

I've discounted it by another $100CAD from the original price so if you want me to check please send me a private message with your address and I can use my Canada Post Venture card to check for business rates, it's not as bad as you think! Shipping down East or to BC in Canada is always...

Nice pic and are those ESR wheels cause the rear looks like the 19X10.5 wheels?

Yes this wasn't a cheap mod to upgrade considering I paid appro. $680CAD including duties and taxes to Canada, $150 for the weld job, another $150 to put the old CAT back in with the weld and having to buy 2 new exhaust clamps $90, 1 X valve cover gasket $73 so $1143CAD in total! Now I'm back to...

Yes I agree and we lifted up the car, inspected the welds for leaks, nothing but the leak was bad coming from the driver side where the OE valve cover gasket was leaking which the S550's are notorious for having so thank god I got that fixed! The MAK CAT delete's was a little too loud for my...

Just got back from my exhaust specialist and what it ended up happening was the gasket valve cover on the driver side was leaking oil but what didn't make sense was after we've checked the welds for leaks and there was absolute no leaks at all so his theory was the oil must of been burning on...

God damn! Hey buying parts as a Canadian isn't cheap especially boosting these cars by any means and for example you guys pay $1000USD for SVE R350 wheels we pay $1340CAD + 500USD Shipping which is $670CAD and this is before duties and taxes and other import fees! By the time I was done adding...

I'll update this post tomorrow when I get back from the shop and hoping it's some bad leak that happened along the way back home cause the sound not was awesome driving home but now it's just ugly ass LOUD! Good thing with Borla exhaust is you get zero drone, just increased volume!

Yes I was thinking that too so I called my welder and he's got me back in tomorrow morning for him to take a look and double check for any leaks. It sounded so nice leaving the shop but now it just sounds nothing like yesterday so there's gotta be something wrong from underneath but to be honest...

I'm having it being checked out tomorrow anyways and thought it was strange also where the first 15 minutes it sounded great and don't even remember smelling any fumes until getting closer to home, could be a possible leak. Now I notice the exhaust sound's much rougher when in the beginning it...

Plus, keep in mind that for the 5.0's we didn't have any "high flow cat" options and just race pipes! MAK just came out with theirs and not sure if Lethal Performance did with theirs either so back then for the 2017 and older there were no high flow performance pipe options...

I've had these sitting for a year now and was contemplating on getting it installed but as for high flow CAT's I am noticing now MAK has them to replace their delete kit that I have to follow emissions guide lines. I'll be going back to my stock setup tomorrow anyways and the exhaust noise is a...